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The patent EP3722774 was granted to Carl Zeiss on Sep 29, 2021. The application was filed on Aug 17, 2018 under application number EP20167155A. 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 |
|---|---|---|---|
| RODENSTOCK | Jun 29, 2022 | MULLER BORE & PARTNER PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102007037730 |
| DESCRIPTION | DE102013219838 |
| DESCRIPTION | DE102014005281 |
| DESCRIPTION | DE10300777 |
| DESCRIPTION | EP1646855 |
| DESCRIPTION | EP2597451 |
| DESCRIPTION | US2007091262 |
| DESCRIPTION | US2014352885 |
| OPPOSITION | CN103959142 |
| OPPOSITION | CN104768708 |
| OPPOSITION | CN104903049 |
| OPPOSITION | CN105026133 |
| OPPOSITION | CN105026988 |
| OPPOSITION | CN105690187 |
| OPPOSITION | CN105916669 |
| OPPOSITION | CN106062617 |
| OPPOSITION | CN106425750 |
| OPPOSITION | CN106716232 |
| OPPOSITION | CN1711163 |
| OPPOSITION | DE102014005281 |
| OPPOSITION | DE102016009810 |
| OPPOSITION | DE10333426 |
| OPPOSITION | EP1245335 |
| OPPOSITION | EP2597451 |
| OPPOSITION | US2014352885 |
| OPPOSITION | US4714232 |
| OPPOSITION | US4856234 |
| OPPOSITION | WO2014102385 |
| OPPOSITION | WO2014131878 |
| OPPOSITION | WO2014131879 |
| SEARCH | DE102005021654 |
| SEARCH | DE102013219838 |
| SEARCH | DE102014005281 |
| SEARCH | EP1646855 |
| SEARCH | EP2597451 |
| SEARCH | US2007091262 |
| SEARCH | US2014352885 |
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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Decision to grant a European patent
Search/Exam
Aug 13, 2021
(Electronic) Receipt
Search/Exam
Aug 13, 2021
English translation of the claims
Search/Exam
Aug 13, 2021
Filing of the translations of the claims
Search/Exam
Aug 13, 2021
French translation of claims
Search/Exam
Aug 13, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 15, 2021
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Intention to grant (signatures)
Search/Exam
Apr 15, 2021
Text intended for grant (clean copy)
Search/Exam
Apr 15, 2021
Apr 13, 2021
(Electronic) Receipt
Search/Exam
Apr 13, 2021
Enquiry as to the processing of the file
Search/Exam
Apr 13, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 1, 2021
Examination started
Search/Exam
Feb 22, 2021
(Electronic) Receipt
Search/Exam
Feb 22, 2021
Enquiry as to the processing of the file
Search/Exam
Feb 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 1, 2021
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(Electronic) Receipt
Search/Exam
Jan 19, 2021
Enquiry as to the processing of the file
Search/Exam
Jan 19, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2020
Oct 15, 2020
(Electronic) Receipt
Search/Exam
Oct 15, 2020
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Amended description with annotations
Search/Exam
Oct 15, 2020
Amendments received before examination
Search/Exam
Oct 15, 2020
Letter accompanying subsequently filed items
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Sep 16, 2020
Notification of forthcoming publication
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Sep 16, 2020
Refund of fees
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Sep 14, 2020
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European search opinion
Search/Exam
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European search report
Search/Exam
Sep 14, 2020
Information on Search Strategy
Search/Exam
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Communication to designated inventor
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Communication to designated inventor
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Apr 1, 2020
(Electronic) Receipt
Search/Exam
Apr 1, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 1, 2020
Letter concerning the inventor
Search/Exam
Mar 31, 2020
Abstract
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Mar 31, 2020
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Claims
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Mar 31, 2020
Description
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Mar 31, 2020
Designation of inventor
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Mar 31, 2020
Drawings
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Mar 31, 2020
Matter concerning the application
Search/Exam
Mar 31, 2020
Priority search results
Search/Exam
Mar 31, 2020
Request for grant of a European patent
Search/Exam
Mar 13, 2019