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The patent EP3574370 was granted to Carl Zeiss on Jun 17, 2020. The application was filed on Jan 24, 2018 under application number EP18703242A. 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 |
|---|---|---|---|
| MATHYS & SQUIRE GBR | Mar 18, 2021 | WIETZKE | - |
| MATHYS & SQUIRE EUROPE | Mar 18, 2021 | WIETZKE | ADMISSIBLE |
| RODENSTOCK | Mar 17, 2021 | 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 | DE102011115239 |
| INTERNATIONAL-SEARCH-REPORT | DE102011115239 |
| INTERNATIONAL-SEARCH-REPORT | US2003081173 |
| INTERNATIONAL-SEARCH-REPORT | US2015304530 |
| OPPOSITION | DE102009004383 |
| OPPOSITION | DE102011115239 |
| OPPOSITION | EP3355101 |
| OPPOSITION | US2003081173 |
| OPPOSITION | US2009021693 |
| OPPOSITION | US2009051871 |
| OPPOSITION | US2014253875 |
| OPPOSITION | US2015015848 |
| OPPOSITION | US2015304530 |
| OPPOSITION | WO2012113805 |
| OPPOSITION | WO2015101737 |
| OPPOSITION | WO2016026570 |
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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(Electronic) Receipt
Appeal
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Annex
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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Mar 3, 2023
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Notice of appeal
Appeal
Mar 2, 2023
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Appeal
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Notice of appeal
Appeal
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Jun 29, 2020
May 25, 2020
Decision to grant a European patent
Search/Exam
May 12, 2020
(Electronic) Receipt
Search/Exam
May 12, 2020
English translation of the claims
Search/Exam
May 12, 2020
Filing of the translations of the claims
Search/Exam
May 12, 2020
French translation of claims
Search/Exam
May 12, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 31, 2020
Mar 31, 2020
Mar 31, 2020
Intention to grant (signatures)
Search/Exam
Mar 31, 2020
Text intended for grant (clean copy)
Search/Exam
Mar 31, 2020
Mar 5, 2020
Examination started
Search/Exam
Nov 6, 2019
Aug 30, 2019
Communication to designated inventor
Search/Exam
Aug 30, 2019
Communication to designated inventor
Search/Exam
Aug 30, 2019
Communication to designated inventor
Search/Exam
Aug 27, 2019
Priority search results copy provided by EPO
Search/Exam
Jul 29, 2019
(Electronic) Receipt
Search/Exam
Jul 29, 2019
Jul 29, 2019
Amendments received before examination
Search/Exam
Jul 29, 2019
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Letter concerning the inventor
Search/Exam
Jul 29, 2019
Request for entry into the European phase
Search/Exam
Jun 7, 2019
Information on entry into European phase
Search/Exam
Jan 8, 2019
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Oct 30, 2018
Notification of election of EPO
Search/Exam
Oct 23, 2018
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PCT demand form
PCT2
Sep 26, 2018
Sep 26, 2018
Sep 26, 2018
Sep 26, 2018
Aug 2, 2018
Copy of the international search report
Search/Exam
Aug 2, 2018
Copy of the international search report
Search/Exam
Aug 2, 2018
Published international application - A1
Search/Exam
Apr 24, 2018
ISR: cited documents
PCTISA
Apr 24, 2018
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Feb 6, 2018
Letter concerning the priority
Search/Exam
Feb 6, 2018
Priority document
Search/Exam
Jan 24, 2018
(Electronic) Receipt
PCTRO
Jan 24, 2018
Abstract
PCTRO
Jan 24, 2018
Claims
PCTRO
Jan 24, 2018
Description
PCTRO
Jan 24, 2018
Jan 24, 2018
Drawings
PCTRO
Jan 24, 2018
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