The patent EP3346972 was granted to KAO Germany on May 26, 2021. The application was originally filed on Mar 15, 2016 under application number EP16709948A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number | 
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP2191812 | 
| INTERNATIONAL-SEARCH-REPORT | EP2277498 | 
| INTERNATIONAL-SEARCH-REPORT | EP2338470 | 
| INTERNATIONAL-SEARCH-REPORT | EP2471502 | 
| INTERNATIONAL-SEARCH-REPORT | FR2958160 | 
| INTERNATIONAL-SEARCH-REPORT | WO2011003553 | 
| OPPOSITION | EP0962218 | 
| OPPOSITION | US5053051 | 
| OPPOSITION | WO2006106390 | 
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 | 
|---|---|
| OPPOSITION | - Marsh Jennifer M, "Chapter 4: Hair Coloring", Practical Modern Hair Science, (20120101), pages 117 - 155, ISBN 978-1-932633-93-1, XP055793646 | 
Get a free citation report including examiner, opposition, and international search citations.
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Date
Description
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Jun 16, 2025
Jun 11, 2025
(Electronic) Receipt
Appeal
Jun 11, 2025
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Reply to appeal
Appeal
Apr 3, 2025
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(Electronic) Receipt
Appeal
Feb 7, 2025
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Dec 16, 2024
Dec 16, 2024
Dec 9, 2024
(Electronic) Receipt
Appeal
Dec 9, 2024
Dec 9, 2024
Notice of appeal
Appeal
Oct 10, 2024
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OPPO
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Jun 9, 2021
Apr 30, 2021
Decision to grant a European patent
Search/Exam
Apr 19, 2021
(Electronic) Receipt
Search/Exam
Apr 19, 2021
Filing of the translations of the claims
Search/Exam
Apr 19, 2021
French translation of claims
Search/Exam
Apr 19, 2021
German translation of the claims
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Jan 25, 2021
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Jan 25, 2021
Intention to grant (signatures)
Search/Exam
Jan 25, 2021
Text intended for grant (clean copy)
Search/Exam
Jan 25, 2021
Nov 23, 2020
(Electronic) Receipt
Search/Exam
Nov 23, 2020
Amended claims with annotations
Search/Exam
Nov 23, 2020
Amended description with annotations
Search/Exam
Nov 23, 2020
Claims
Search/Exam
Nov 23, 2020
Description
Search/Exam
Nov 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 23, 2020
Sep 25, 2020
Sep 21, 2020
(Electronic) Receipt
Search/Exam
Sep 21, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 21, 2020
May 12, 2020
Annex to the communication
Search/Exam
May 12, 2020
Communication from the Examining Division
Search/Exam
May 6, 2020
Examination started
Search/Exam
May 6, 2019
Nov 2, 2018
Reply to Written Opinion prepared by the EPO
Search/Exam
Oct 31, 2018
Refund of fees
Search/Exam
Oct 29, 2018
Reply to Written Opinion prepared by the EPO
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Jun 20, 2018
Apr 17, 2018
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Communication to designated inventor
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Apr 13, 2018
Communication to designated inventor
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Apr 13, 2018
Communication to designated inventor
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Apr 13, 2018
Communication to designated inventor
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Apr 10, 2018
Priority search results copy provided by EPO
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Mar 27, 2018
Mar 14, 2018
(Electronic) Receipt
Search/Exam
Mar 14, 2018
Request for entry into the European phase
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Jan 19, 2018
Information on entry into European phase
Search/Exam
Apr 4, 2017
Mar 16, 2017
Copy of the international search report
Search/Exam
Mar 16, 2017
Published international application - A1
Search/Exam
May 17, 2016
ISR: cited documents
PCTISA
May 12, 2016
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Mar 15, 2016
(Electronic) Receipt
PCTRO
Mar 15, 2016
Abstract
PCTRO
Mar 15, 2016
Claims
PCTRO
Mar 15, 2016
Description
PCTRO
Mar 15, 2016
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