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The patent EP3623416 was granted to Sumitomo Rubber Industries on Jun 25, 2025. The application was filed on Sep 5, 2019 under application number EP19195531A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| HOFFMANN EITLE | Oct 28, 2022 | HOFFMANN EITLE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2013018918 |
| DESCRIPTION | JP2014125607 |
| DESCRIPTION | JP4581116B |
| DESCRIPTION | JPH01313522 |
| DESCRIPTION | JPH0558005B |
| DESCRIPTION | JPS596207 |
| DESCRIPTION | US4414370 |
| DESCRIPTION | US5010166 |
| OPPOSITION | EP2039532 |
| OPPOSITION | JP2010254925 |
| OPPOSITION | JP2011231204 |
| OPPOSITION | JP2011231205 |
| OPPOSITION | US2017183483 |
| OPPOSITION | WO2011096393 |
| OPPOSITION | WO2017103191 |
| SEARCH | DE112015002409T |
| SEARCH | EP1052270 |
| SEARCH | EP3095617 |
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.
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OPPO
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Decision to grant a European patent
Search/Exam
Dec 22, 2021
(Electronic) Receipt
Search/Exam
Dec 22, 2021
French translation of claims
Search/Exam
Dec 22, 2021
German translation of the claims
Search/Exam
Dec 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 4, 2021
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Intention to grant (signatures)
Search/Exam
Oct 4, 2021
Text intended for grant (clean copy)
Search/Exam
Oct 4, 2021
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(Electronic) Receipt
Search/Exam
May 26, 2021
Amended claims with annotations
Search/Exam
May 26, 2021
Amended description with annotations
Search/Exam
May 26, 2021
Claims
Search/Exam
May 26, 2021
Description
Search/Exam
May 26, 2021
Letter accompanying subsequently filed items
Search/Exam
May 26, 2021
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Annex to the communication
Search/Exam
Mar 15, 2021
Communication from the Examining Division
Search/Exam
Feb 4, 2021
Examination started
Search/Exam
Sep 18, 2020
(Electronic) Receipt
Search/Exam
Sep 18, 2020
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Amended claims with annotations
Search/Exam
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Amended description with annotations
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Sep 18, 2020
Amendments received before examination
Search/Exam
Sep 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 23, 2020
Feb 19, 2020
Notification of forthcoming publication
Search/Exam
Jan 30, 2020
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European search opinion
Search/Exam
Jan 30, 2020
European search report
Search/Exam
Jan 30, 2020
Information on Search Strategy
Search/Exam
Jan 24, 2020
Search started
Search/Exam
Nov 11, 2019
Nov 6, 2019
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Communication to designated inventor
Search/Exam
Sep 5, 2019
Abstract
Search/Exam
Sep 5, 2019
Sep 5, 2019
Claims
Search/Exam
Sep 5, 2019
Description
Search/Exam
Sep 5, 2019
Designation of inventor
Search/Exam
Sep 5, 2019
Request for grant of a European patent
Search/Exam