The patent EP2512436 was granted to KAO Germany on Apr 7, 2021. The application was originally filed on Dec 15, 2010 under application number EP10795245A. The patent is currently recorded with a legal status of "Revoked".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number | 
|---|---|
| DESCRIPTION | DE2521960 | 
| DESCRIPTION | DE2811010 | 
| DESCRIPTION | DE3044738 | 
| DESCRIPTION | DE3217059 | 
| DESCRIPTION | EP0070074 | 
| DESCRIPTION | EP0337354 | 
| DESCRIPTION | EP0358216 | 
| DESCRIPTION | EP1887024 | 
| EXAMINATION | WO2011009712 | 
| INTERNATIONAL-SEARCH-REPORT | EP2022478 | 
| INTERNATIONAL-SEARCH-REPORT | JPH01203314 | 
| INTERNATIONAL-SEARCH-REPORT | US2009255063 | 
| INTERNATIONAL-SEARCH-REPORT | WO2004010967 | 
| INTERNATIONAL-SEARCH-REPORT | WO2004032887 | 
| INTERNATIONAL-SEARCH-REPORT | WO2004066972 | 
| OPPOSITION | EP1887024 | 
| OPPOSITION | EP2025329 | 
| OPPOSITION | EP2153818 | 
| OPPOSITION | WO2011009712 | 
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text | 
|---|---|
| EXAMINATION | - Kao Brands Jon Frieda, "Thickening Conditioner", GNPD, MINTEL, (20080501), Database accession no. 909702 | 
| INTERNATIONAL-SEARCH-REPORT | - GOTTSCHALCK T E ET AL, INTERNATIONAL COSMETIC INGREDIENT DICTIONARY AND HANDBOOK, passage, INTERNATIONAL COSMETIC INGREDIENT DICTIONARY AND HANDBOOK, XX, XX, PAGE(S) 2148 - 2152, (20060101), XP002470374 [A] 1,3-15 * the whole document * | 
| INTERNATIONAL-SEARCH-REPORT | - HERRWERT S ET AL, "Silicone Quaternium-22: New silicone technology for premium hair conditioning with additional benefits", SOFW-JOURNAL SEIFEN, OELE, FETTE, WACHSE, VERLAG FUR CHEMISCHE INDUSTRIE, AUGSBURG, DE, (20090601), vol. 135, no. 6, ISSN 0942-7694, pages 11 - 12,14, XP002584466 [Y] 1-15 * the whole document * | 
| INTERNATIONAL-SEARCH-REPORT | - JURCZYK MATTHEW F ET AL, CATIONIC SURFACTANTS AND QUATERNARY DERIVATIVES FOR HAIR AND SKIN CARE, COSMETIC SCIENCE AND TECHNOLOGY SERIES, DEKKER, NEW YORK, NY, US, PAGE(S) 223 - 249, (19990101), ISSN 0887-6541, XP001249398 [X] 1,14,15 * pages 242-243 * [Y] 2-13 | 
| OPPOSITION | - Anonymous, "Abil T Quat 60", Evonik, (20080930), pages 1 - 3, XP055875929 | 
| OPPOSITION | - Anonymous, "CAS registry number 308073-86-1", CAS registry number 308073-86-1, (20211213), pages 1 - 2, XP055875922 | 
| OPPOSITION | - Anonymous, "CAS registry number 946846-36-2", CAS registry number 946846-36-2, (20211213), pages 1 - 3, XP055875931 | 
| OPPOSITION | - Anonymous, "Quaternium-80 - Surfactant - SAAPedia - Surfactant Technology Platform", SAApedia, (20140808), pages 1 - 3, SAApedia, URL: http://www.saapedia.org/en/saa/?type=detail&id=1842, (20220103), XP055875936 | 
| OPPOSITION | - Anonymous, "Silicone quaternium-16 - Surfactant - SAAPedia - Surfactant Technology Platform", SAApedia, (20140808), pages 1 - 4, SAApedia, URL: http://www.saapedia.org/en/saa/?type=detail&id=1833, (20220103), XP055875934 | 
| OPPOSITION | - HERRWERTH S. ET AL., "Silicone Quaternium-22: New silicone technology for premium hair conditioning with additional benefits", SOFW journal, Verlag fuer Chemische Industrie H. Ziolkowsky GmbH, DE, DE , (20090601), vol. 135, no. 6, ISSN 0942-7694, pages 11 - 18, XP002584466 | 
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Sep 21, 2022
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Decision to grant a European patent
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Mar 1, 2021
(Electronic) Receipt
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Mar 1, 2021
Filing of the translations of the claims
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Mar 1, 2021
French translation of claims
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Mar 1, 2021
German translation of the claims
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Oct 22, 2020
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Oct 22, 2020
Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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Grounds for the decision (Annex)
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Means of redress
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Letter dealing with oral proceedings
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Sep 29, 2017
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Oral proceedings: Request for postponement
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Oral proceedings: Request for postponement
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Mar 10, 2017
Advice of delivery
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Acknowledgement of a document
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Observations by third parties
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Communication from the Examining Division
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Jan 23, 2015
Decision to allow further processing
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Jan 7, 2015
Claims
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Dec 30, 2014
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Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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Mar 7, 2014
Examination started
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Dec 13, 2013
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Dec 21, 2012
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Mar 30, 2012
Annexes in respect of a client data request
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Request for entry into the European phase
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Dec 29, 2011
Copy of the international search report
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Dec 29, 2011
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Published international application - A2
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Dec 15, 2010
Abstract
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Dec 15, 2010
Claims
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Dec 15, 2010
Description
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Dec 15, 2010