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The patent EP3134499 was granted to Nair on Jan 29, 2025. The application was filed on Apr 23, 2015 under application number EP15782790A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| HENKEL | Oct 28, 2025 | - | ADMISSIBLE |
| THE PROCTER & GAMBLE | Oct 28, 2025 | RUSSELL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CZ2007412 |
| DESCRIPTION | EP0472178 |
| DESCRIPTION | EP0773982 |
| DESCRIPTION | GB1298577 |
| DESCRIPTION | GB1393042 |
| DESCRIPTION | GB2026054 |
| DESCRIPTION | GB2026566 |
| DESCRIPTION | GB2076011 |
| DESCRIPTION | US2007207940 |
| DESCRIPTION | US2012015856 |
| DESCRIPTION | US2082275 |
| DESCRIPTION | US2255082 |
| DESCRIPTION | US2702279 |
| DESCRIPTION | US3627758 |
| DESCRIPTION | US3861870 |
| DESCRIPTION | US3886075 |
| DESCRIPTION | US3950277 |
| DESCRIPTION | US3951960 |
| DESCRIPTION | US3974076 |
| DESCRIPTION | US3980713 |
| DESCRIPTION | US3983082 |
| DESCRIPTION | US3993659 |
| DESCRIPTION | US4018569 |
| DESCRIPTION | US4045361 |
| DESCRIPTION | US4103047 |
| DESCRIPTION | US4233164 |
| DESCRIPTION | US4237016 |
| DESCRIPTION | US4263431 |
| DESCRIPTION | US4298290 |
| DESCRIPTION | US4308151 |
| DESCRIPTION | US4384121 |
| DESCRIPTION | US4387089 |
| DESCRIPTION | US4401578 |
| DESCRIPTION | US4432886 |
| DESCRIPTION | US4433975 |
| DESCRIPTION | US4435307 |
| DESCRIPTION | US4439335 |
| DESCRIPTION | US4443355 |
| DESCRIPTION | US4479881 |
| DESCRIPTION | US4511490 |
| DESCRIPTION | US4565647 |
| DESCRIPTION | US4661269 |
| DESCRIPTION | US4702857 |
| DESCRIPTION | US4707291 |
| DESCRIPTION | US4711730 |
| DESCRIPTION | US4713194 |
| DESCRIPTION | US4749596 |
| DESCRIPTION | US4756850 |
| DESCRIPTION | US4778816 |
| DESCRIPTION | US4808086 |
| DESCRIPTION | US4849257 |
| DESCRIPTION | US4877896 |
| DESCRIPTION | US4900468 |
| DESCRIPTION | US4956447 |
| DESCRIPTION | US4959187 |
| DESCRIPTION | US5002691 |
| DESCRIPTION | US5030240 |
| DESCRIPTION | US5057236 |
| DESCRIPTION | US5073371 |
| DESCRIPTION | US5073372 |
| DESCRIPTION | US5087372 |
| DESCRIPTION | US5108457 |
| DESCRIPTION | US5112514 |
| DESCRIPTION | US5130044 |
| DESCRIPTION | US5130045 |
| DESCRIPTION | US5234616 |
| DESCRIPTION | US5269962 |
| DESCRIPTION | US5296161 |
| DESCRIPTION | US5417868 |
| DESCRIPTION | US5474690 |
| DESCRIPTION | US5545350 |
| DESCRIPTION | US5622925 |
| DESCRIPTION | US5643865 |
| DESCRIPTION | US5739327 |
| DESCRIPTION | US5741437 |
| DESCRIPTION | US5814242 |
| DESCRIPTION | US5827508 |
| DESCRIPTION | US5877315 |
| DESCRIPTION | US5888419 |
| DESCRIPTION | US5935556 |
| DESCRIPTION | US5968485 |
| DESCRIPTION | US5972316 |
| DESCRIPTION | US5990065 |
| DESCRIPTION | US6069122 |
| DESCRIPTION | US6117189 |
| DESCRIPTION | US6120704 |
| DESCRIPTION | US6127549 |
| DESCRIPTION | US6133215 |
| DESCRIPTION | US6162869 |
| DESCRIPTION | US6251303 |
| DESCRIPTION | US6973362 |
| DESCRIPTION | US7096084 |
| DESCRIPTION | WO2007099294 |
| DESCRIPTION | WO2009024743 |
| DESCRIPTION | WO2009024747 |
| DESCRIPTION | WO2009131816 |
| DESCRIPTION | WO2010141184 |
| INTERNATIONAL-SEARCH-REPORT | US2002034553 |
| INTERNATIONAL-SEARCH-REPORT | US2007207940 |
| INTERNATIONAL-SEARCH-REPORT | US2011098376 |
| INTERNATIONAL-SEARCH-REPORT | US2012015856 |
| INTERNATIONAL-SEARCH-REPORT | US8246978 |
| OPPOSITION | US2010004153 |
| OPPOSITION | US2010160201 |
| OPPOSITION | US2010311179 |
| OPPOSITION | US8617317 |
| OPPOSITION | WO2011109474 |
| OPPOSITION | WO2013191919 |
| OPPOSITION | WO2015164677 |
| OTHER | WO2009131816 |
| SEARCH | CZ2007412 |
| SEARCH | WO2009131816 |
| SEARCH | WO2010141184 |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
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Nov 10, 2025
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Feb 11, 2025
Jan 8, 2025
Decision to grant a European patent
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Dec 17, 2024
(Electronic) Receipt
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Dec 17, 2024
Filing of the translations of the claims
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Dec 17, 2024
French translation of claims
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Dec 17, 2024
German translation of the claims
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Dec 17, 2024
Letter accompanying subsequently filed items
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Aug 30, 2024
Aug 30, 2024
Aug 30, 2024
Aug 30, 2024
Intention to grant (signatures)
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Aug 30, 2024
Text intended for grant (clean copy)
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Aug 30, 2024
May 29, 2024
(Electronic) Receipt
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May 29, 2024
Amended claims with annotations
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May 29, 2024
Amended claims with annotations
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May 29, 2024
Claims
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May 29, 2024
Claims
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May 29, 2024
Letter accompanying subsequently filed items
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May 29, 2024
Apr 4, 2024
Mar 28, 2024
(Electronic) Receipt
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Mar 28, 2024
Letter accompanying subsequently filed items
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Mar 28, 2024
Dec 1, 2023
Annex to the communication
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Dec 1, 2023
Communication from the Examining Division
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Nov 13, 2023
(Electronic) Receipt
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Nov 13, 2023
Letter accompanying subsequently filed items
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Oct 31, 2023
Oct 17, 2023
(Electronic) Receipt
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Oct 17, 2023
Enquiry as to the processing of the file
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Oct 17, 2023
Letter accompanying subsequently filed items
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Apr 13, 2023
(Electronic) Receipt
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Apr 13, 2023
Annex
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Apr 13, 2023
Annex
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Apr 13, 2023
Letter accompanying subsequently filed items
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Apr 13, 2023
Oct 4, 2022
Annex to the communication
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Oct 4, 2022
Communication from the Examining Division
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Jul 21, 2022
Jul 21, 2022
Jul 18, 2022
Citation filed by a third party
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Jul 18, 2022
Citation filed by a third party
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Jul 18, 2022
Citation filed by a third party
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Jul 18, 2022
Observations by third parties
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Jun 30, 2022
(Electronic) Receipt
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Jun 30, 2022
Annex
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Jun 30, 2022
Annex
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Jun 30, 2022
Letter accompanying subsequently filed items
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Jun 30, 2022
Jun 30, 2022
Jun 30, 2022
Jun 30, 2022
Jun 30, 2022
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Jun 30, 2022
Dec 22, 2021
Annex to the communication
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Dec 22, 2021
Communication from the Examining Division
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Nov 10, 2021
Nov 4, 2021
Observations by third parties
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Aug 16, 2021
(Electronic) Receipt
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Aug 16, 2021
Amended claims with annotations
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Aug 16, 2021
Claims
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Aug 16, 2021
Letter accompanying subsequently filed items
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Aug 16, 2021
Apr 26, 2021
Apr 26, 2021
Apr 22, 2021
Annex to the communication
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Apr 22, 2021
Communication from the Examining Division
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Apr 20, 2021
Non-patent literature filed by a third party
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Apr 20, 2021
Non-patent literature filed by a third party
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Apr 20, 2021
Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Apr 20, 2021
Observations by third parties
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Apr 20, 2021
Observations by third parties
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Mar 19, 2021
Mar 19, 2021
Mar 15, 2021
Document concerning representation
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Mar 12, 2021
Observations by third parties
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Mar 11, 2021
Mar 9, 2021
Feb 9, 2021
(Electronic) Receipt
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Feb 9, 2021
Amended claims with annotations
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Feb 9, 2021
Amended description with annotations
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Feb 9, 2021
Claims
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Feb 9, 2021
Description
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Feb 9, 2021
Letter accompanying subsequently filed items
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Feb 9, 2021
Oct 9, 2020
Oct 9, 2020
Oct 9, 2020
Intention to grant (signatures)
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Oct 9, 2020
Text intended for grant (clean copy)
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Oct 9, 2020
Aug 24, 2020
(Electronic) Receipt
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Aug 24, 2020
Amended description with annotations
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Aug 24, 2020
Description
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Aug 24, 2020
Letter accompanying subsequently filed items
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Aug 24, 2020
Jul 1, 2020
Jun 16, 2020
Annex to the communication
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Jun 16, 2020
Communication from the Examining Division
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Jun 15, 2020
(Electronic) Receipt
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Jun 15, 2020
Letter accompanying subsequently filed items
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Jun 15, 2020
Jun 12, 2020
Jun 4, 2020
Examination started
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May 20, 2020
(Electronic) Receipt
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May 20, 2020
Annex
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May 20, 2020
Annex
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May 20, 2020
Annex
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May 20, 2020
Letter accompanying subsequently filed items
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May 20, 2020
Request for correction
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Aug 27, 2018
(Electronic) Receipt
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Aug 27, 2018
Aug 27, 2018
Amended claims with annotations
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Aug 27, 2018
Amendments received before examination
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Aug 27, 2018
Letter accompanying subsequently filed items
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Feb 16, 2018
Jan 30, 2018
Jan 30, 2018
European search opinion
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Jan 30, 2018
Information on Search Strategy
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Jan 30, 2018
Supplementary European search report
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Nov 30, 2017
(Electronic) Receipt
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Nov 30, 2017
Amended claims with annotations
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Nov 30, 2017
Claims
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Nov 30, 2017
Letter accompanying subsequently filed items
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Nov 30, 2017
Sep 21, 2017
Annex to the communication
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Sep 21, 2017
Sep 18, 2017
Search started
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Feb 1, 2017
Dec 14, 2016
Nov 23, 2016
(Electronic) Receipt
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Nov 23, 2016
Request for entry into the European phase
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Oct 31, 2016
Oct 11, 2016
Information on entry into European phase
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Mar 30, 2016
Notification of election of EPO
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Nov 16, 2015
Oct 29, 2015
Copy of the international search report
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Oct 29, 2015
Published international application - A1
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