The weekly litigation news digest is live. Subscribe now
The patent EP3221112 was granted to Borealis on Jan 6, 2021. The application was filed on Nov 17, 2015 under application number EP15804338A. 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 |
|---|---|---|---|
| WR GRACE & CONN | Oct 6, 2021 | KUTZENBERGER | ADMISSIBLE |
| WR GRACE & CONN | Oct 6, 2021 | KUTZENBERGER WOLFF & PARTNER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO2015075088 |
| INTERNATIONAL-SEARCH-REPORT | EP1026198 |
| INTERNATIONAL-SEARCH-REPORT | WO2012120069 |
| INTERNATIONAL-SEARCH-REPORT | WO2014202431 |
| OPPOSITION | EP1026198 |
| OPPOSITION | EP2610270 |
| OPPOSITION | EP2610271 |
| OPPOSITION | EP2610272 |
| OPPOSITION | US2007265403 |
| OPPOSITION | US2014121339 |
| OPPOSITION | US6900281 |
| OPPOSITION | US8263692 |
| OPPOSITION | WO0068315 |
| OPPOSITION | WO2012007430 |
| OPPOSITION | WO2016079111 |
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
Get instant alerts for new documents
Dec 22, 2025
Dec 22, 2025
Dec 22, 2025
Dec 22, 2025
Dec 22, 2025
Jun 30, 2025
Jun 24, 2025
Annex
Search/Exam
Jun 24, 2025
Annexes in respect of a client data request
Search/Exam
Jun 24, 2025
Annexes in respect of a client data request
Search/Exam
Jun 24, 2025
Annexes in respect of a client data request
Search/Exam
Jun 24, 2025
Letter accompanying subsequently filed items
Search/Exam
Jun 24, 2025
Feb 22, 2024
Feb 16, 2024
Feb 16, 2024
Oct 4, 2023
Oct 4, 2023
Oct 4, 2023
Oct 4, 2023
Oct 4, 2023
Oct 4, 2023
Sep 14, 2023
Sep 8, 2023
Aug 31, 2023
Aug 31, 2023
Aug 31, 2023
Aug 30, 2023
Aug 23, 2023
Aug 23, 2023
Aug 23, 2023
Jul 19, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
Jun 23, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 21, 2023
Jun 19, 2023
Feb 13, 2023
Feb 13, 2023
Dec 5, 2022
Dec 5, 2022
Oct 13, 2022
Aug 22, 2022
Aug 17, 2022
Aug 16, 2022
Aug 16, 2022
Aug 16, 2022
Aug 16, 2022
Aug 16, 2022
Aug 16, 2022
Aug 16, 2022
Mar 3, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 28, 2022
Feb 4, 2022
Jan 31, 2022
Jan 31, 2022
Oct 18, 2021
Oct 18, 2021
Oct 12, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Jan 20, 2021
Dec 10, 2020
Decision to grant a European patent
Search/Exam
Dec 4, 2020
Decision to allow further processing
Search/Exam
Nov 25, 2020
(Electronic) Receipt
Search/Exam
Nov 25, 2020
Filing of the translations of the claims
Search/Exam
Nov 25, 2020
French translation of claims
Search/Exam
Nov 25, 2020
German translation of the claims
Search/Exam
Nov 25, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 9, 2020
May 8, 2020
May 8, 2020
May 8, 2020
Intention to grant (signatures)
Search/Exam
May 8, 2020
Text intended for grant (clean copy)
Search/Exam
May 8, 2020
Oct 17, 2019
(Electronic) Receipt
Search/Exam
Oct 17, 2019
Amended description with annotations
Search/Exam
Oct 17, 2019
Description
Search/Exam
Oct 17, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 17, 2019
Sep 24, 2019
Annex to the communication
Search/Exam
Sep 24, 2019
Communication from the Examining Division
Search/Exam
Feb 13, 2019
(Electronic) Receipt
Search/Exam
Feb 13, 2019
Amended claims with annotations
Search/Exam
Feb 13, 2019
Claims
Search/Exam
Feb 13, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 13, 2019
Jan 8, 2019
Annex to the communication
Search/Exam
Jan 8, 2019
Communication from the Examining Division
Search/Exam
Jan 2, 2019
Examination started
Search/Exam
Apr 20, 2018
Submission concerning representation
Search/Exam
Oct 2, 2017
Oct 2, 2017
Amended description with annotations
Search/Exam
Oct 2, 2017
Amendments received before examination
Search/Exam
Aug 30, 2017
Jun 27, 2017
Jun 23, 2017
Communication to designated inventor
Search/Exam
Jun 23, 2017
Communication to designated inventor
Search/Exam
Jun 23, 2017
Communication to designated inventor
Search/Exam
Jun 23, 2017
Communication to designated inventor
Search/Exam
Jun 20, 2017
Priority search results copy provided by EPO
Search/Exam
May 31, 2017
May 31, 2017
May 16, 2017
(Electronic) Receipt
Search/Exam
May 16, 2017
Request for entry into the European phase
Search/Exam
Mar 31, 2017
Information on entry into European phase
Search/Exam
Oct 24, 2016
Oct 24, 2016
Oct 24, 2016
Oct 24, 2016
Oct 24, 2016
Aug 25, 2016
Aug 17, 2016
PCT demand form
PCT2
Aug 17, 2016
Aug 17, 2016
Aug 17, 2016
Jun 14, 2016
May 26, 2016
Copy of the international search report
Search/Exam
May 26, 2016
Published international application - A1
Search/Exam
Feb 2, 2016
Feb 2, 2016
Feb 2, 2016
Dec 15, 2015
Nov 17, 2015
(Electronic) Receipt
PCTRO
Nov 17, 2015
Abstract
PCTRO
Nov 17, 2015
Claims
PCTRO
Nov 17, 2015
Description
PCTRO
Nov 17, 2015
Nov 17, 2015
Nov 17, 2015