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The patent EP3218307 was granted to Rhodia Operations on Jan 8, 2020. The application was filed on Nov 10, 2015 under application number EP15794536A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| NEO CHEMICALS & OXIDES EUROPE | Oct 8, 2020 | BIRD & BIRD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US7361322 |
| DESCRIPTION | WO9845212 |
| INTERNATIONAL-SEARCH-REPORT | EP1435338 |
| INTERNATIONAL-SEARCH-REPORT | EP2518018 |
| INTERNATIONAL-SEARCH-REPORT | US2009220398 |
| INTERNATIONAL-SEARCH-REPORT | US2013052108 |
| INTERNATIONAL-SEARCH-REPORT | WO2013092557 |
| OPPOSITION | EP0388567 |
| OPPOSITION | EP1435338 |
| OPPOSITION | EP2505263 |
| OPPOSITION | EP2518018 |
| OPPOSITION | WO2005023728 |
| OPPOSITION | WO2008156219 |
| OPPOSITION | WO2016075177 |
| OPPOSITION | WO9845212 |
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 11, 2023
Dec 11, 2023
Dec 4, 2023
Annexes in respect of a client data request
Search/Exam
Dec 4, 2023
Letter accompanying subsequently filed items
Search/Exam
Dec 4, 2023
Sep 27, 2023
Refund of fees
Search/Exam
Sep 25, 2023
Sep 25, 2023
Sep 25, 2023
Sep 25, 2023
Sep 25, 2023
Sep 21, 2023
Aug 23, 2023
Aug 17, 2023
(Electronic) Receipt
Appeal
Aug 17, 2023
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Aug 8, 2023
Aug 3, 2023
(Electronic) Receipt
Appeal
Aug 3, 2023
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Aug 1, 2023
(Electronic) Receipt
Appeal
Aug 1, 2023
Aug 1, 2023
Jul 31, 2023
Advice of delivery
Appeal
Jul 31, 2023
Advice of delivery
Search/Exam
Jul 27, 2023
Jul 27, 2023
Jul 27, 2023
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Jul 21, 2023
(Electronic) Receipt
Appeal
Jul 21, 2023
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Jul 14, 2023
(Electronic) Receipt
Appeal
Jul 14, 2023
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Jun 16, 2023
(Electronic) Receipt
Appeal
Jun 16, 2023
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Jun 15, 2023
May 11, 2023
(Electronic) Receipt
Appeal
May 11, 2023
May 8, 2023
Advice of delivery
Appeal
May 4, 2023
May 4, 2023
Apr 28, 2023
Apr 28, 2023
Jan 4, 2023
Jan 4, 2023
Dec 23, 2022
(Electronic) Receipt
Appeal
Dec 23, 2022
Dec 23, 2022
Reply to appeal
Appeal
Aug 26, 2022
Aug 23, 2022
(Electronic) Receipt
Appeal
Aug 23, 2022
Aug 23, 2022
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Aug 11, 2022
Jul 25, 2022
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Jun 14, 2022
(Electronic) Receipt
Appeal
Jun 14, 2022
Jun 14, 2022
Notice of appeal
Appeal
Jun 13, 2022
Jun 13, 2022
Jun 7, 2022
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Apr 20, 2022
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Means of redress
OPPO
Apr 14, 2022
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Authorisation
OPPO
Jan 5, 2022
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Jun 8, 2020
May 26, 2020
Jan 20, 2020
Dec 12, 2019
Decision to grant a European patent
Search/Exam
Nov 12, 2019
(Electronic) Receipt
Search/Exam
Nov 12, 2019
Filing of the translations of the claims
Search/Exam
Nov 12, 2019
French translation of claims
Search/Exam
Nov 12, 2019
German translation of the claims
Search/Exam
Nov 12, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 12, 2019
Jul 12, 2019
Jul 12, 2019
Intention to grant (signatures)
Search/Exam
Jul 12, 2019
Text intended for grant (clean copy)
Search/Exam
Jul 12, 2019
Jan 9, 2019
(Electronic) Receipt
Search/Exam
Jan 9, 2019
Amended claims with annotations
Search/Exam
Jan 9, 2019
Claims
Search/Exam
Jan 9, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 9, 2019
Oct 23, 2018
Annex to the communication
Search/Exam
Oct 23, 2018
Communication from the Examining Division
Search/Exam
Oct 11, 2018
Examination started
Search/Exam
Feb 14, 2018
Refund of fees
Search/Exam
Feb 6, 2018
Decision to allow further processing
Search/Exam
Jan 26, 2018
(Electronic) Receipt
Search/Exam
Jan 26, 2018
Jan 26, 2018
Jan 26, 2018
Amendments received before examination
Search/Exam
Jan 26, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 23, 2017
Jul 5, 2017
Jun 28, 2017
Priority search results copy provided by EPO
Search/Exam
Jun 20, 2017
Communication to designated inventor
Search/Exam
Jun 20, 2017
Communication to designated inventor
Search/Exam
Jun 20, 2017
Communication to designated inventor
Search/Exam
Jun 6, 2017
(Electronic) Receipt
Search/Exam
Jun 6, 2017
Request for entry into the European phase
Search/Exam
May 31, 2017
Mar 24, 2017
Information on entry into European phase
Search/Exam
Jun 7, 2016
May 19, 2016
Copy of the international search report
Search/Exam
May 19, 2016
Published international application - A1
Search/Exam
Apr 12, 2016
Apr 12, 2016
Feb 5, 2016
ISR: cited documents
PCTISA
Feb 4, 2016
Feb 4, 2016
Feb 4, 2016
Nov 27, 2015
Nov 25, 2015
Nov 20, 2015
Nov 10, 2015
(Electronic) Receipt
PCTRO
Nov 10, 2015
Abstract
PCTRO
Nov 10, 2015
Claims
PCTRO
Nov 10, 2015
Description
PCTRO
Nov 10, 2015
Nov 10, 2015
Nov 10, 2015