The weekly litigation news digest is live. Subscribe now
The patent EP3283008 was granted to Hoya Optical Labs OF America on Oct 11, 2023. The application was filed on Apr 15, 2016 under application number EP16780935A. 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 |
|---|---|---|---|
| SCHWARZ & PARTNER PATENTANWALTE | Jul 11, 2024 | GRUBER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2003210466 |
| INTERNATIONAL-SEARCH-REPORT | US2009225435 |
| INTERNATIONAL-SEARCH-REPORT | US2013033636 |
| INTERNATIONAL-SEARCH-REPORT | US3902693 |
| INTERNATIONAL-SEARCH-REPORT | US5507806 |
| INTERNATIONAL-SEARCH-REPORT | WO2012138426 |
| OPPOSITION | CN104678572 |
| OPPOSITION | DE102012023478 |
| OPPOSITION | US2003210466 |
| OPPOSITION | US2009225435 |
| OPPOSITION | US2013033636 |
| OPPOSITION | US2013070343 |
| OPPOSITION | US3902693 |
| OPPOSITION | US5507806 |
| OPPOSITION | US5757459 |
| OPPOSITION | WO2009100257 |
| OPPOSITION | WO2012138426 |
| OPPOSITION | WO2015147758 |
| OPPOSITION | WO2016168746 |
| SEARCH | DE102012023478 |
| SEARCH | WO2009100257 |
| SEARCH | WO2012138426 |
| SEARCH | WO2015147758 |
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 11, 2025
Dec 4, 2025
Dec 1, 2025
Dec 1, 2025
Dec 1, 2025
Oct 20, 2025
Oct 16, 2025
Oct 15, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Mar 19, 2025
Mar 19, 2025
Mar 19, 2025
Mar 19, 2025
Mar 19, 2025
Nov 28, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Nov 23, 2024
Jul 25, 2024
Jul 25, 2024
Jul 17, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Jul 11, 2024
Oct 24, 2023
Sep 14, 2023
Decision to grant a European patent
Search/Exam
Jul 26, 2023
(Electronic) Receipt
Search/Exam
Jul 26, 2023
Filing of the translations of the claims
Search/Exam
Jul 26, 2023
French translation of claims
Search/Exam
Jul 26, 2023
German translation of the claims
Search/Exam
Jul 26, 2023
Letter accompanying subsequently filed items
Search/Exam
May 9, 2023
May 9, 2023
May 9, 2023
May 9, 2023
Intention to grant (signatures)
Search/Exam
May 9, 2023
Text intended for grant (clean copy)
Search/Exam
May 9, 2023
Jan 3, 2023
Dec 16, 2022
Letter accompanying subsequently filed items
Search/Exam
Dec 16, 2022
Oct 4, 2022
Sep 28, 2022
(Electronic) Receipt
Search/Exam
Sep 28, 2022
Annexes in respect of a client data request
Search/Exam
Sep 28, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 28, 2022
Sep 20, 2021
(Electronic) Receipt
Search/Exam
Sep 20, 2021
Amended claims with annotations
Search/Exam
Sep 20, 2021
Claims
Search/Exam
Sep 20, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 20, 2021
May 18, 2021
Annex to the communication
Search/Exam
May 18, 2021
Communication from the Examining Division
Search/Exam
May 10, 2021
Examination started
Search/Exam
Nov 23, 2018
(Electronic) Receipt
Search/Exam
Nov 23, 2018
Nov 23, 2018
Amended claims with annotations
Search/Exam
Nov 23, 2018
Nov 23, 2018
Amendments received before examination
Search/Exam
Nov 23, 2018
Letter accompanying subsequently filed items
Search/Exam
May 14, 2018
Apr 24, 2018
Apr 24, 2018
European search opinion
Search/Exam
Apr 24, 2018
Information on Search Strategy
Search/Exam
Apr 24, 2018
Supplementary European search report
Search/Exam
Apr 16, 2018
Search started
Search/Exam
Jan 24, 2018
Dec 11, 2017
Notice on debiting of fees
Search/Exam
Nov 27, 2017
Communication to designated inventor
Search/Exam
Nov 27, 2017
Communication to designated inventor
Search/Exam
Nov 27, 2017
Communication to designated inventor
Search/Exam
Oct 31, 2017
Oct 16, 2017
(Electronic) Receipt
Search/Exam
Oct 16, 2017
Oct 16, 2017
Amended claims with annotations
Search/Exam
Oct 16, 2017
Amendments received before examination
Search/Exam
Oct 16, 2017
Request for entry into the European phase
Search/Exam
Aug 25, 2017
Information on entry into European phase
Search/Exam
Nov 7, 2016
Oct 20, 2016
Copy of the international search report
Search/Exam
Oct 20, 2016
Published international application - A1
Search/Exam