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The patent EP3497283 was granted to Westrock MWV on Aug 3, 2022. The application was filed on Aug 4, 2017 under application number EP17751579A. 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 |
|---|---|---|---|
| KEMIRA OYJ | May 3, 2023 | PAGE WHITE FARRER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2016230343 |
| INTERNATIONAL-SEARCH-REPORT | US2010310776 |
| INTERNATIONAL-SEARCH-REPORT | US5776619 |
| INTERNATIONAL-SEARCH-REPORT | US6548120 |
| INTERNATIONAL-SEARCH-REPORT | WO9605054 |
| OPPOSITION | US2017002517 |
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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Mar 3, 2025
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Means of redress
OPPO
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General enquiry
OPPO
Dec 11, 2023
Jul 7, 2023
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Aug 17, 2022
Jul 7, 2022
Decision to grant a European patent
Search/Exam
Jun 22, 2022
(Electronic) Receipt
Search/Exam
Jun 22, 2022
Filing of the translations of the claims
Search/Exam
Jun 22, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 18, 2022
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Intention to grant (signatures)
Search/Exam
Feb 18, 2022
Text intended for grant (clean copy)
Search/Exam
Feb 18, 2022
Nov 17, 2021
(Electronic) Receipt
Search/Exam
Nov 17, 2021
Amended description with annotations
Search/Exam
Nov 17, 2021
Description
Search/Exam
Nov 17, 2021
French translation of claims
Search/Exam
Nov 17, 2021
German translation of the claims
Search/Exam
Nov 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 17, 2021
Jul 8, 2021
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Jul 8, 2021
Intention to grant (signatures)
Search/Exam
Jul 8, 2021
Text intended for grant (clean copy)
Search/Exam
Jul 8, 2021
Feb 15, 2021
Amended claims with annotations
Search/Exam
Feb 15, 2021
Amended description with annotations
Search/Exam
Feb 15, 2021
Claims
Search/Exam
Feb 15, 2021
Description
Search/Exam
Feb 15, 2021
Dec 3, 2020
Annex to the communication
Search/Exam
Dec 3, 2020
Communication from the Examining Division
Search/Exam
Oct 23, 2020
Amended claims with annotations
Search/Exam
Oct 23, 2020
Claims
Search/Exam
Oct 23, 2020
Jul 15, 2020
Annex to the communication
Search/Exam
Jul 15, 2020
Communication from the Examining Division
Search/Exam
Jun 16, 2020
Amended claims with annotations
Search/Exam
Jun 16, 2020
Amended description with annotations
Search/Exam
Jun 16, 2020
Claims
Search/Exam
Jun 16, 2020
Description
Search/Exam
Jun 16, 2020
Apr 23, 2020
Apr 17, 2020
Feb 18, 2020
Annex to the communication
Search/Exam
Feb 18, 2020
Communication from the Examining Division
Search/Exam
Feb 13, 2020
Examination started
Search/Exam
Sep 25, 2019
Sep 25, 2019
Amended claims with annotations
Search/Exam
Sep 25, 2019
Amendments received before examination
Search/Exam
May 22, 2019
Mar 15, 2019
Mar 15, 2019
Communication to designated inventor
Search/Exam
Mar 15, 2019
Communication to designated inventor
Search/Exam
Mar 15, 2019
Communication to designated inventor
Search/Exam
Mar 4, 2019
(Electronic) Receipt
Search/Exam
Mar 4, 2019
Request for entry into the European phase
Search/Exam
Mar 4, 2019
Submission concerning representation
Search/Exam
Feb 27, 2019
Feb 15, 2019
Feb 15, 2019
Notification of the recording of a change
Search/Exam
Dec 19, 2018
Information on entry into European phase
Search/Exam
Mar 5, 2018
Mar 5, 2018
Mar 5, 2018
Feb 15, 2018
Copy of the international search report
Search/Exam
Feb 15, 2018
Published international application - A1
Search/Exam
Sep 22, 2017
ISR: cited documents
PCTISA
Sep 21, 2017
Sep 21, 2017
Sep 21, 2017
Aug 25, 2017
Aug 14, 2017
Abstract
PCTISA
Aug 14, 2017
Annex
PCTISA
Aug 14, 2017
Claims
PCTISA
Aug 14, 2017
Description
PCTISA
Aug 14, 2017
Drawings
PCTISA
Aug 14, 2017
Aug 14, 2017
Aug 14, 2017
Aug 14, 2017