CN110213979A - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- CN110213979A CN110213979A CN201880008070.8A CN201880008070A CN110213979A CN 110213979 A CN110213979 A CN 110213979A CN 201880008070 A CN201880008070 A CN 201880008070A CN 110213979 A CN110213979 A CN 110213979A
- Authority
- CN
- China
- Prior art keywords
- toothbrush
- toothbrush according
- head
- spoke
- central part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/06—Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
- A46B15/0016—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means
- A46B15/0032—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means with protrusion for polishing teeth
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
Landscapes
- Brushes (AREA)
Abstract
The present invention is field of toothbrushes；And more particularly to the toothbrush with the tooth whitening efficacy promoted.It is well known in the art for providing the toothbrush of the whitening benefit in addition to cleaning or polishing benefit.Although the toothbrush of the prior art, which provides, is used for whitening effect, it is still desired for promoting brightening for tooth.Therefore the purpose of the present invention is to provide the dental whitening of promotion or greasiness removal effects.It has been found that when dental whitening element on the head at specific arrangements structure when, can get promoted dental whitening or greasiness removal.
Description
Technical field
The present invention is field of toothbrushes；And more particularly, to the toothbrush with improved tooth whitening efficacy.
Background technique
In recent years, because consumer is for the boosting of both charming smiles in health and appearance demand, dental whitening, which becomes, to be increased
One of long oral care branch the most quick.In fact, for most people, the appearance of tooth is very important,
And it is possibly formed into any discoloration on tooth or spot all will affect the aesthetic quality of tooth.The color of tooth is solid by tooth
There is color to obtain the discoloration in film or the existing combined effect of exogenous spot with enamel is possibly formed into.Tooth it is intrinsic
Color is mainly determined by lower layer's dentine through the color attribute that relatively translucent outer adamantine layer is projected.Exogenous spot
Be particularly formed in tooth less easily for brush teeth and these regions that the abrasive action of toothpaste is touched on.In addition, exogenous
Spot often by smoking, rich in dark pigment food (for example, red wine) diet intake and such as chlorohexidene certain cationics
Or the use of the multivalent metal salt of such as tin and iron etc promotes.
It is well known in the art for providing the toothbrush of the whitening benefit in addition to cleaning or polishing benefit.
WO03/015575 (Unilever) is disclosed with the toothbrush for radially extending rubber cleaning element.WO11093874
(Colgate) toothbrush that polishing component is dispersed in Y shape bristle is disclosed.WO 01/21036 (Unilever) discloses packet
The toothbrush of handle and head is included, the head includes upright bristles and at least one upright polishing of teeth element, which is characterized in that tooth
Polishing element is resilient wall type component form and connects with bristle side.
WO2008/103598 discloses a kind of oral care implement or toothbrush, the oral care implement or toothbrush include
Head and the tooth cleaning components for enhancing cleaning of teeth and brightening.Tooth cleaning components have the pedestal for being connected to head.Pedestal
With the concave surface form for being in the distal region towards head, so that the tooth powder for being applied to head is adapted to the distal region towards head
Guidance.Distal region of the protrusion from concave surface towards head extends.Head may include along head longitudinal axis aligned in general it is more
A concave surface, and protrusion extends from curved surface.
WO04/026075 (Unilever) discloses a kind of toothbrush, and the toothbrush includes longitudinal elasticity component, longitudinal elasticity
Component includes the perlite for brightening.
Although the toothbrush of the prior art, which provides, is used for whitening benefit, it is still desired for promoting brightening for tooth.
Correspondingly, the object of the present invention is to provide the dental whitening of promotion or greasiness removal effects.
Other purpose is, provides a kind of toothbrush, and the toothbrush has effects that the dental whitening or greasiness removal promoted
Benefit is removed with sufficient polishing and plaque.
Unexpectedly, it was found that when dental whitening element on the head at specific arrangements structure when, can get promoted
Dental whitening or greasiness removal.
Summary of the invention
Correspondingly, the present invention provides a kind of toothbrush, the toothbrush includes handle (1) and head (2), and the head includes bristle
With the dental whitening element (3) for being resilient wall type component form, which is characterized in that the dental whitening element has along head
Central part (4) and cup that longitudinal axis extends enclose at least one lateral part (5) of the end of (cup) central part, wherein
The lateral part (5) forming is there are two spoke or the lateral part is starlike is formed at least three spoke (6).
In another aspect, the present invention provides the purposes for improved oral hygiene of toothbrush according to the present invention.
From described in detail below and appended claims are read, these and other aspects, features and advantages is general to this field
Logical technical staff will become obvious.To avoid doubt, any feature of one aspect of the present invention is for use in the present invention
In any other aspect.Word " comprising " be intended to indicate "comprising" but be not necessarily " by ... form " or " by ... constitute ".
In other words, cited step or option are without exhaustive.It is noted that the example provided in being described below is intended to explain the present invention,
It is not intended that the present invention is limited to these examples itself.Similarly, all percentage is all weight/weight percent, unless
In addition it indicates.Other than in operation and comparative example, or there are other clear indications, otherwise in the specification
All numbers of the quantity of the material of Indicator Reaction or condition, the physical property of material and/or purposes are it will be understood that at word is modified with
Language " about ".The digital scope stated in the form of " from x to y " is interpreted as including x and y.When in the form of " from x to y " description for
When multiple preferred scopes of special characteristic, it is understood that all ranges for combining different endpoints are also considered.
Specific embodiment
The present invention relates to provide promoted brighten or the toothbrush of greasiness removal effect.Toothbrush of the invention also provides adequately
Polishing and plaque remove benefit.
Preferably, toothbrush is manual toothbrush.Preferably, the shape of tooth head is general rectangular.
Dental whitening element
Dental whitening element is resilient wall type component form.Wall type component is preferably made of soft enough material to provide
The whitening benefit of tooth, and it is therefore preferable that the wall type component by having between 5 and 80, preferably from 15 to 50
The material of Xiao A hardness is made.
As dental whitening element is along dental surface brushing during scrub, brightens element and whitening benefit is provided.Due to tooth
Tooth brightens the wall-like structure and its elasticity composition of element, therefore dental whitening element being capable of flexible deformation.
Dental whitening element is presented as the thin slice being inserted between the bristle of toothbrush.Dental whitening element is preferably by thermoplastic
Property elastomer (TPE) is made.
Thermoplastic elastomer (TPE) is made of polymer material such as block copolymer.Preferred block copolymer includes styrene
(for example, Styrene Ethylene styrene or styrene butadiene styrene), polyolefin are (for example, polypropylene/ethylene
The modified system's (that is, synthetic rubber) of propane diamine), polyamide (for example, polyamide (2 or polyamide 6), polyester (for example, polyester ester or
Polyether ester), polyurethane (for example, polyester polyurethane, polyethers or polyester-polyurethane).
It is also preferred that brightening element includes perlite particle.
It is contemplated that brightening element can be die cut or be molded production by any conventional method.However, the such knot of production
The preferred method of structure will pass through injection moulding.The material of wall type component can be attached to head toothbrushes in any way, either
Pass through chemical means, mechanical means or both.
In the case where being not intended to theoretical limited, it is believed that, dental whitening element, which has, is against tooth for the resistance of toothpaste particle
On advantage.When toothbrush is stowed against the flat surfaces of tooth, these particles be would be held in contact.In addition, toothbrush
In bristle have the advantages that for toothpaste particle to be carried in interdental seam or narrow gap, thus whitening benefit and cleaning are provided
The combination of benefit.Dental whitening element of the invention has central part and at least one lateral part.Preferably, dental whitening
The central part (4) of element (3) is extended continuously along the longitudinal axis of head (2).
Central part and lateral part, which are preferably separated from each other and do not combine at any point, forms individual unit.
The central part of dental whitening element is extended continuously preferably along the longitudinal axis of head.Central part preferably has
10mm to 15mm, more preferably 10mm to 13mm, the straight length of still more preferably 10mm to 12mm.
In the case where distance, the i.e. development length that central part extends up to the length greater than head is greater than head length, center
Part may need to be bent with some form.This can be gentle bending, but its can also with serpentine, sine curve or word
The form of shape is bent.
Development length should not the straight length of the shortest distance with centered between the end of part obscure.
Preferably, the linear form of central part.
Dental whitening element preferably has a central part.
Dental whitening element of the invention have preferably cup enclose/in a manner of cup-shaped around central part end at least
One lateral part.
Preferably, there are two lateral parts that cup encloses each end of central part.
Lateral part preferably shapes the end for enclosing central part so as to cup.Preferably, lateral part have V-arrangement, U-shaped or
The end of central part is enclosed with cup in U-V shape region.
Preferably, the end that there is lateral part V-arrangement region central part is enclosed with cup.Lateral part can be because of lateral part
V-arrangement and formed there are two spoke；Or lateral part can be it is star-shaped, have at least three spoke, preferably 3 spokes.Respectively
Spoke can have identical or different length.The length of spoke can from 1mm to 7mm, preferably 2mm to 6mm, more preferably 3mm
Change to 6mm.Spoke can be straight also at tip or be bent outwardly.
Toothbrush according to the present invention can be made of any material conventional use of in this field.
Correspondingly, the handle of brush and head can be by polyolefin (for example, polypropylene and polyethylene), polyamide (for example, nylon)
It is molded as with polyester (for example, poly terephthalic acid).Other suitable material includes polymethyl methacrylate, polyethylene propylene
Nitrile and cellulose esters, such as cellulose propionate.
The bristle of brush can be made by being suitable for flexible material used in oral hygiene.Generally, it is suitable for the material of bristle
Polyamide (for example, nylon) or polyester (for example, polybutylene terephthalate (PBT)).
In second aspect, the present invention is provided to the use for improved oral hygiene of toothbrush according to the present invention
On the way.
Attached drawing
The embodiment of toothbrush according to the present invention is described with reference to the drawings herein.Fig. 1 shows toothbrush according to the present invention
Schematic diagram.In Fig. 1, toothbrush includes head (2) and handle (1).Head has dental whitening element (3), dental whitening element tool
There are (5) two parts of central part (4) and lateral part.Lateral part has spoke (6).Brushing cluster (7) are also shown in head.
Fig. 2 shows the comparing results of 3 kinds of toothbrushes of example 3.Blue color (first column) indicates tooth according to the present invention
Brush, green color (Article 3 column) indicates the whole edge toothbrush of Oral B flat-top and red color (Article 2 column) indicates Signal toothbrush.
The present invention will be illustrated by following non-limiting example now.
Example
Example 1: toothbrush according to the present invention is in the effect for brightening aspect
In this example, it compares toothbrush according to the present invention and is gone out with the famous market of whitening effect and with brand name Signal
The existing toothbrush (White System Ex, Italy, 2016) sold.
Equipment:
Equipment used in the example is as follows:
Dismembyator, gravel paper；
WIRA scrubbing unit；
Color difference meter Minolta CR321 (Minolta Camera Co., Ltd, Japan), under CIE L*a*b* mode.
Spot process:
According to Stookey GA, Burkhard TA, Schemehorn B R.in vitro removal of stain
Cleaning is assessed described in 1982 61:1236-1239 of with dentifrices J Dent Res.Greasiness removal percentage
Than being provided by following equation:
L*Brushed: the L* value after brushing time
L*Stained: the L* value under the conditions of baseline spot
L*Pumiced: the L* value after finally being polished using preventive treatment
Test product:
| Code | Test product |
| A | The Signal White System toothbrush of Unilever |
| B | Toothbrush according to the present invention |
Toothbrush according to the present invention used in the example has following specification: head
Design:
Bristle shears profile: multilayer (has power end)
Material
Anchor:
Metal alloy (nickel silver electric wire)
Supplier-Berkenhoff
Grade-nickeline NS 12
Fibril:
Nylon 6/12
Supplier: DuPont/STP
Grade: PA6.12 fibril
+
Nylon 6/12
Supplier: BBC-tbc
Grade: charcoal fibril
Cluster figure:
As shown in figure 1
Fibril slide calliper rule & fibril color:
Modify size:
Highly: higher cluster=12.5 ± 0.5mm
Lower cluster=10.5 ± 0.5mm
Thin slice=10.5 ± 0.2mm
As a result:
In this study, toothbrush A and B are tested using experimental design matrix, it is ensured that the bristle of test is randomly assigned scrubbing
In 4 slots of machine.As a result it is summarised in table 1.Data statistic analysis is carried out via JMP 11 (statistical software from SAS).Benefit
Expansion comparison is tested with Tukey-Kramer HSD, to assess whether the difference between product is statistical significant.
Table 1 shows the mean value of greasiness removal percentage, with for each test product relative standard deviation value and
Standard error value.
Table 1
The mean value of (*) different letters significant difference under the conditions of 95% confidence level (p < 0.05).
Above table shows in greasiness removal effect or brightens the statistical discrepancy of aspect discovery.It can be seen that according to this
The toothbrush of invention outperforms Signal toothbrush.
Example 2: effect of the toothbrush according to the present invention in terms of plaque removal
In this example, the existing toothbrush for comparing toothbrush according to the present invention and being sold in the market with brand name Signal,
To remain in the quantity of the plaque in interdental spaces after round scrub is mobile by measuring and evaluate cleaning performance.
Equipment:
Equipment used in the example is as follows:
Scrubbing unit: with line mode and the combination that intersects brush mode, it is tested in observe that it is approximately substantial circular
Brushing motion.
Tooth model:
Using the coloured dental plate that seam is made and extended in parallel including four of polyurethane, to simulate front tooth and mill in mouth
Interdental spaces between tooth.Full of paste group seam show as 4mm width leukorrhea；After scrub, the clean seam in part shows
The leukorrhea reduced out for width.Analysis only considers two center seams.
Equipment for measuring plaque removal: spectrophotometer measurement whiteness is utilized, wherein for empty seam, full seam
With " L " in the seam record L*a*b* color system after scrub.
Artificial plaque:
The soft white paste group of synthesis of the seam filled with simulation mankind's plaque physical property on tooth model.
In the seam that paste group is dispersed on dental plate (plate) using palette knife, and extra paste will be rolled into a ball in dental plate
It is applied on surface.
Test process:
Toothbrush is immersed in water 5 minutes to soften bristle.Then by head toothbrushes vertically in the grasping list of grooming machine
So that cluster is not compressed during storing and after putting in member.Full dental plate and empty dental plate are measured using chromascope
Value.Six groups of measurements (for each each three groups of measurements of seam: intermediate one group and each one group of every side) has been carried out in two center seams,
And it calculates average.The tooth dental plate for being provisioned with plaque filling is placed in special container, and saliva addition is whole at covering
A dental plate.Container is seated in machine holder.By weight, apply 190 grams of load on brush head, and allows to scrub
Machine runs 30 total travels (150 two-passes of frequency/minute).Then using distilled water carefully denture care bed to remove desalivation
Residue, and dental plate is taken out from container.Plaque removal is assessed in a manner of photometering by stitching, such as full value with
As empty value is done.Denture care bed, and the load for applying 275 grams for same brush head performs an analysis again.
The percentage of plaque removal is determined using following equation:
Test product:
| Code | Test product |
| A | The Signal toothbrush of Unilever |
| B | Toothbrush according to the present invention |
Toothbrush according to the present invention used in the example has and identical specification in example 1.
As a result:
In this study, toothbrush A and B are tested for plaque removal.
Table 2 shows the mean value of plaque removal percentage, with the relative standard deviation value for each test product.
Table 2
Above table shows that test product statistics is equal.It can be seen that toothbrush performance according to the present invention is similar to
Signal toothbrush.
Example 3: effect of the toothbrush according to the present invention in terms of polishing
In this example, the existing tooth sold to toothbrush according to the present invention frequently and in the market with brand name Oral B
Brush, to evaluate the wear intensity of toothbrush according to the present invention.
Test product:
| Test product | |
| A | The Signal toothbrush of Unilever |
| B | Toothbrush according to the present invention |
| C | The whole edge of Oral B flat-top |
Used material:
Scrubbing unit
Black acrylic ceramic tile
Sheen vancometer 155/SO
Test process:
Using the miniature vancometer of Sheen with the gloss value of 60o/60o (incidence/measurement) every block of ceramic tile of angle measurement.
For every block of ceramic tile, original gloss measurement is carried out, then so that organic glass surface is become low and deep using sand paper, and measure again
Gloss value.This provides the minimum and maximum gloss value of ceramic tile, is then calculated according to the minimum and maximum gloss value
Glossiness percentage.
Slurry is by following preparation:
1 part of toothpaste (Signal responsive type toothpaste)
1 part of water
1 part of SCMC dilution
Deposited 10g or more slurry is applied on every part of sample, and scrubs ceramic tile.It goes in 200,1000,3000 and 5000 scrubs
Glossiness measurement is carried out after journey.
As a result:
In this study, toothbrush A, B and C are tested for wear intensity.
Fig. 2 shows the results of different time points.Generally, it is inferred that toothbrush according to the present invention (in Fig. 2 by
Blue color marking) it is better than the whole edge type toothbrush (being indicated in Fig. 2 by green color) of Oral B flat-top on polishing action, and in table
Existing aspect statistics is similar to Signal toothbrush (being indicated in Fig. 2 by red color).
Claims (13)
1. a kind of toothbrush, including handle (1) and head (2), the head includes bristle and the tooth increasing for being resilient wall type component form
White element (3), which is characterized in that the dental whitening element has the central part extended along the longitudinal axis of the head
(4) and cup enclose the central part end at least one lateral part (5), wherein the lateral part (5) is configured to have
There are two spoke or the lateral part be it is star-shaped, there are at least three spoke (6).
2. toothbrush according to claim 1, wherein the central part (4) of the dental whitening element (3) is along the head
(2) longitudinal axis is extended continuously.
3. toothbrush according to any one of the preceding claims, wherein the central part (4) and the lateral part
(5) it is separated from each other.
4. toothbrush according to any one of the preceding claims, wherein the central part (4) has 10mm to 15mm's
Straight length.
5. toothbrush according to any one of the preceding claims, wherein the lateral part (5) has V-arrangement, U-shaped or U-V
The end of the central part is enclosed in the region of shape with cup.
6. toothbrush according to any one of the preceding claims, wherein the lateral part (5) be V-arrangement, tool there are two
Spoke or the lateral part be it is star-shaped, have at least three spoke (6).
7. toothbrush according to any one of the preceding claims, wherein each spoke (6) has identical or different length.
8. toothbrush according to any one of the preceding claims, wherein the length of the spoke (6) is 1mm to 7mm.
9. toothbrush according to any one of the preceding claims, wherein the spoke (6) is straight or curved.
10. toothbrush according to any one of the preceding claims, wherein the dental whitening element (3) has in one
Center portion point (4).
11. toothbrush according to any one of the preceding claims, wherein the dental whitening element (3) is presented as thin slice.
12. toothbrush according to any one of the preceding claims, wherein the dental whitening element (3) includes perlite.
13. a kind of purposes for being used to improve oral hygiene of toothbrush according to any one of the preceding claims.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17152544.7 | 2017-01-23 | ||
| EP17152544 | 2017-01-23 | ||
| PCT/EP2018/051132 WO2018134270A1 (en) | 2017-01-23 | 2018-01-17 | A toothbrush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110213979A true CN110213979A (en) | 2019-09-06 |
| CN110213979B CN110213979B (en) | 2022-04-26 |
Family
ID=57868125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880008070.8A Expired - Fee Related CN110213979B (en) | 2017-01-23 | 2018-01-17 | Tooth brush |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3570703B1 (en) |
| CN (1) | CN110213979B (en) |
| WO (1) | WO2018134270A1 (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1211963A1 (en) * | 1999-09-17 | 2002-06-12 | Unilever N.V. | Toothbrush |
| WO2003015575A1 (en) * | 2001-08-14 | 2003-02-27 | Unilever N.V. | Electric toothbrush |
| CN1407865A (en) * | 1999-10-08 | 2003-04-02 | 高露洁-棕榄公司 | Toothbrush having bristle pattern providing enhanced cleaning |
| WO2004026075A1 (en) * | 2002-09-20 | 2004-04-01 | Unilever N.V. | Brush device |
| CN1674808A (en) * | 2002-08-09 | 2005-09-28 | 高露洁-棕榄公司 | toothbrush |
| US7089621B2 (en) * | 2002-09-20 | 2006-08-15 | Colgate-Palmolive Company | Toothbrush |
| WO2008103598A1 (en) * | 2007-02-23 | 2008-08-28 | Colgate-Palmolive Company | Oral care implement |
| WO2011093874A1 (en) * | 2010-01-29 | 2011-08-04 | Colgate-Palmolive Company | Oral care implement |
| WO2016105359A1 (en) * | 2014-12-23 | 2016-06-30 | Colgate-Palmolive Company | Oral care implement |
-
2018
- 2018-01-17 WO PCT/EP2018/051132 patent/WO2018134270A1/en not_active Ceased
- 2018-01-17 EP EP18701012.9A patent/EP3570703B1/en active Active
- 2018-01-17 CN CN201880008070.8A patent/CN110213979B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1211963A1 (en) * | 1999-09-17 | 2002-06-12 | Unilever N.V. | Toothbrush |
| US20020124337A1 (en) * | 1999-09-17 | 2002-09-12 | Unilever Home & Personal Care Usa, Division Of Conopco, Inc. | Toothbrush |
| CN1374840A (en) * | 1999-09-17 | 2002-10-16 | 荷兰联合利华有限公司 | Tooth brush |
| CN1407865A (en) * | 1999-10-08 | 2003-04-02 | 高露洁-棕榄公司 | Toothbrush having bristle pattern providing enhanced cleaning |
| WO2003015575A1 (en) * | 2001-08-14 | 2003-02-27 | Unilever N.V. | Electric toothbrush |
| CN1674808A (en) * | 2002-08-09 | 2005-09-28 | 高露洁-棕榄公司 | toothbrush |
| WO2004026075A1 (en) * | 2002-09-20 | 2004-04-01 | Unilever N.V. | Brush device |
| US7089621B2 (en) * | 2002-09-20 | 2006-08-15 | Colgate-Palmolive Company | Toothbrush |
| WO2008103598A1 (en) * | 2007-02-23 | 2008-08-28 | Colgate-Palmolive Company | Oral care implement |
| WO2011093874A1 (en) * | 2010-01-29 | 2011-08-04 | Colgate-Palmolive Company | Oral care implement |
| WO2016105359A1 (en) * | 2014-12-23 | 2016-06-30 | Colgate-Palmolive Company | Oral care implement |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3570703B1 (en) | 2024-10-16 |
| EP3570703A1 (en) | 2019-11-27 |
| WO2018134270A1 (en) | 2018-07-26 |
| CN110213979B (en) | 2022-04-26 |
| BR112019010950A2 (en) | 2019-10-01 |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210907 Address after: Rotterdam Applicant after: Unilever Intellectual Property Holdings Ltd. Address before: Rotterdam Applicant before: Unilever Nederland B.V. |
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| GR01 | Patent grant | ||
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