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The patent EP3271448 was granted to Evonik Degussa on Sep 8, 2021. The application was filed on Mar 11, 2016 under application number EP16709437A. 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 |
|---|---|---|---|
| NOVOZYMES | Jun 1, 2022 | COPA COPENHAGEN PATENTS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN1337439 |
| DESCRIPTION | DE102007005419 |
| DESCRIPTION | DE19600743 |
| DESCRIPTION | DE19648439 |
| DESCRIPTION | DE2939519 |
| DESCRIPTION | EP0499434 |
| DESCRIPTION | EP1411111 |
| DESCRIPTION | EP1445302 |
| DESCRIPTION | EP2410039 |
| DESCRIPTION | EP2501813 |
| DESCRIPTION | EP2786743 |
| DESCRIPTION | EP2787065 |
| DESCRIPTION | FR2740779 |
| DESCRIPTION | FR2855752 |
| DESCRIPTION | JP2006070231 |
| DESCRIPTION | JP2006083238 |
| DESCRIPTION | JP2006274233 |
| DESCRIPTION | JP2007181789 |
| DESCRIPTION | JP2008062179 |
| DESCRIPTION | JPH01304034 |
| DESCRIPTION | JPS60183032 |
| DESCRIPTION | KR20040033376 |
| DESCRIPTION | US5156773 |
| DESCRIPTION | US5352604 |
| DESCRIPTION | US7556654 |
| DESCRIPTION | US7985722 |
| DESCRIPTION | WO03002700 |
| DESCRIPTION | WO03006146 |
| DESCRIPTION | WO2007115872 |
| DESCRIPTION | WO2012010406 |
| EXAMINATION | US3553139 |
| EXAMINATION | US4261868 |
| EXAMINATION | WO03057713 |
| EXAMINATION | WO2007131656 |
| EXAMINATION | WO9221760 |
| EXAMINATION | WO9307263 |
| INTERNATIONAL-SEARCH-REPORT | DE102007005419 |
| INTERNATIONAL-SEARCH-REPORT | JP2006070231 |
| INTERNATIONAL-SEARCH-REPORT | US2011201536 |
| INTERNATIONAL-SEARCH-REPORT | US2013072414 |
| INTERNATIONAL-SEARCH-REPORT | US5156773 |
| INTERNATIONAL-SEARCH-REPORT | US5998344 |
| INTERNATIONAL-SEARCH-REPORT | WO2014118095 |
| OPPOSITION | CN102964083 |
| OPPOSITION | EP1445302 |
| OPPOSITION | EP2410039 |
| OPPOSITION | WO2004009752 |
| OPPOSITION | WO2011120776 |
| OPPOSITION | WO2013043857 |
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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Dec 1, 2025
Nov 24, 2025
(Electronic) Receipt
Appeal
Nov 24, 2025
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Sep 26, 2025
(Electronic) Receipt
Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
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Appeal
Sep 26, 2025
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Appeal
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Appeal
Jun 12, 2025
(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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OPPO
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Decision to grant a European patent
Search/Exam
Jul 29, 2021
(Electronic) Receipt
Search/Exam
Jul 29, 2021
English translation of the claims
Search/Exam
Jul 29, 2021
Filing of the translations of the claims
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Jul 29, 2021
French translation of claims
Search/Exam
Jul 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 16, 2021
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Intention to grant (signatures)
Search/Exam
Apr 16, 2021
Text intended for grant (clean copy)
Search/Exam
Apr 16, 2021
Sep 25, 2020
(Electronic) Receipt
Search/Exam
Sep 25, 2020
Description
Search/Exam
Sep 25, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 25, 2020
May 26, 2020
Annex to the communication
Search/Exam
May 26, 2020
Communication from the Examining Division
Search/Exam
Dec 2, 2019
(Electronic) Receipt
Search/Exam
Dec 2, 2019
Amended claims with annotations
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Dec 2, 2019
Claims
Search/Exam
Dec 2, 2019
Letter accompanying subsequently filed items
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Dec 2, 2019
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Annex to the communication
Search/Exam
Aug 5, 2019
Communication from the Examining Division
Search/Exam
Jul 19, 2019
Jul 3, 2019
(Electronic) Receipt
Search/Exam
Jul 3, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 3, 2019
Matter concerning the application
Search/Exam
May 8, 2019
(Electronic) Receipt
Search/Exam
May 8, 2019
Amended claims with annotations
Search/Exam
May 8, 2019
Claims
Search/Exam
May 8, 2019
Letter accompanying subsequently filed items
Search/Exam
May 8, 2019
Apr 24, 2019
(Electronic) Receipt
Search/Exam
Apr 24, 2019
Authorisation
Search/Exam
Apr 24, 2019
Letter accompanying subsequently filed items
Search/Exam
Apr 24, 2019
Mar 5, 2019
Feb 28, 2019
(Electronic) Receipt
Search/Exam
Feb 28, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 28, 2019
Nov 12, 2018
Annex to the communication
Search/Exam
Nov 12, 2018
Communication from the Examining Division
Search/Exam
Nov 6, 2018
Examination started
Search/Exam
Apr 25, 2018
(Electronic) Receipt
Search/Exam
Apr 25, 2018
Apr 25, 2018
Amended claims with annotations
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Apr 25, 2018
Amendments received before examination
Search/Exam
Apr 25, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 4, 2018
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Communication to designated inventor
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Oct 23, 2017
Communication to designated inventor
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Oct 23, 2017
Communication to designated inventor
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Oct 23, 2017
Communication to designated inventor
Search/Exam
Oct 18, 2017
Priority search results copy provided by EPO
Search/Exam
Oct 6, 2017
Oct 2, 2017
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Sep 25, 2017
Sep 18, 2017
(Electronic) Receipt
PCTRO
Sep 18, 2017
Sep 11, 2017
Sep 1, 2017
(Electronic) Receipt
PCTRO
Sep 1, 2017
Aug 23, 2017
(Electronic) Receipt
Search/Exam
Aug 23, 2017
Request for entry into the European phase
Search/Exam
Jul 26, 2017
Information on entry into European phase
Search/Exam
Sep 22, 2016
Copy of the international search report
Search/Exam
Sep 22, 2016
Published international application - A1
Search/Exam
May 18, 2016
ISR: cited documents
PCTISA
May 18, 2016
May 17, 2016
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May 13, 2016
(Electronic) Receipt
PCTRO
May 13, 2016
May 13, 2016
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Mar 30, 2016
Mar 17, 2016
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Mar 16, 2016
Annex
PCTRO
Mar 15, 2016
Mar 11, 2016
(Electronic) Receipt
PCTRO
Mar 11, 2016
Abstract
PCTRO
Mar 11, 2016
Claims
PCTRO
Mar 11, 2016
Description
PCTRO
Mar 11, 2016
Mar 11, 2016
Drawings
PCTRO
Mar 11, 2016