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The patent EP3351212 was granted to Hoya on Aug 23, 2023. The application was originally filed on Sep 15, 2016 under application number EP16846585A. 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 |
|---|---|---|---|
| MORITA | May 3, 2021 | GRUNECKER PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2009018009 |
| INTERNATIONAL-SEARCH-REPORT | JP2009160191 |
| INTERNATIONAL-SEARCH-REPORT | WO2005070341 |
| INTERNATIONAL-SEARCH-REPORT | WO2015070994 |
| OPPOSITION | CA2938660 |
| OPPOSITION | EP2161004 |
| OPPOSITION | EP2286764 |
| OPPOSITION | EP2368526 |
| OPPOSITION | JP2009018009 |
| OPPOSITION | JP2009160191 |
| OPPOSITION | US2009248031 |
| OPPOSITION | WO2005070341 |
| OPPOSITION | WO2015012312 |
| OPPOSITION | WO2015070994 |
| SEARCH | CA2938660 |
| SEARCH | EP2161004 |
| SEARCH | EP2286764 |
| SEARCH | WO2015012312 |
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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OPPO
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Aug 17, 2020
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Decision to grant a European patent
Search/Exam
Jun 25, 2020
(Electronic) Receipt
Search/Exam
Jun 25, 2020
French translation of claims
Search/Exam
Jun 25, 2020
German translation of the claims
Search/Exam
Jun 25, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 21, 2020
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Intention to grant (signatures)
Search/Exam
Feb 21, 2020
Text intended for grant (clean copy)
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Jan 30, 2020
Examination started
Search/Exam
Nov 29, 2019
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Amended claims with annotations
Search/Exam
Nov 29, 2019
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Amended description with annotations
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Nov 29, 2019
Amendments received before examination
Search/Exam
Nov 25, 2019
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Amended claims with annotations
Search/Exam
Nov 25, 2019
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Amended description with annotations
Search/Exam
Nov 25, 2019
Amendments received before examination
Search/Exam
Jun 3, 2019
May 14, 2019
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European search opinion
Search/Exam
May 14, 2019
Information on Search Strategy
Search/Exam
May 14, 2019
Supplementary European search report
Search/Exam
Apr 30, 2019
Search started
Search/Exam
Nov 23, 2018
Nov 23, 2018
Amended description with annotations
Search/Exam
Nov 23, 2018
Amendments received before examination
Search/Exam
Nov 19, 2018
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Amended description with annotations
Search/Exam
Nov 19, 2018
Amendments received before examination
Search/Exam
Jun 27, 2018
Notification of forthcoming publication
Search/Exam
May 7, 2018
Apr 25, 2018
Communication to designated inventor
Search/Exam
Apr 4, 2018
Apr 4, 2018
Mar 15, 2018
(Electronic) Receipt
Search/Exam
Mar 15, 2018
Abstract
Search/Exam
Mar 15, 2018
Claims
Search/Exam
Mar 15, 2018
Description
Search/Exam
Mar 15, 2018
Drawings
Search/Exam
Mar 15, 2018
Request for entry into the European phase
Search/Exam
Jan 26, 2018
Information on entry into European phase
Search/Exam
Apr 11, 2017
Mar 23, 2017
Copy of the international search report
Search/Exam
Mar 23, 2017
Mar 23, 2017
International publication pamphlet
Search/Exam