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The patent EP3425447 was granted to Carl Zeiss on Sep 11, 2019. The application was filed on Jul 6, 2017 under application number EP17180008A. 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 EUROPE | Jun 10, 2020 | MATHYS & SQUIRE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP20170153556 |
| DESCRIPTION | EP20170153558 |
| DESCRIPTION | EP20170153559 |
| DESCRIPTION | EP20170173929 |
| DESCRIPTION | DE10216824 |
| DESCRIPTION | US2002015530 |
| DESCRIPTION | US2003123026 |
| DESCRIPTION | US2005162419 |
| DESCRIPTION | US2013088490 |
| DESCRIPTION | US2015055085 |
| DESCRIPTION | US2015277155 |
| DESCRIPTION | US2015293382 |
| DESCRIPTION | US2016327811 |
| DESCRIPTION | US9286715 |
| EXAMINATION | WO0188654 |
| EXAMINATION | WO2013177456 |
| OPPOSITION | ES2604806 |
| OPPOSITION | FR3016050 |
| OPPOSITION | FR3016051 |
| OPPOSITION | FR3016052 |
| OPPOSITION | JP2007206211 |
| OPPOSITION | WO2015027196 |
| OPPOSITION | WO2016135078 |
| OPPOSITION | WO2016176630 |
| SEARCH | US2015243015 |
| SEARCH | US2016327811 |
| SEARCH | US5576778 |
| SEARCH | WO2016164859 |
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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Aug 16, 2019
Decision to grant a European patent
Search/Exam
Jul 24, 2019
(Electronic) Receipt
Search/Exam
Jul 24, 2019
English translation of the claims
Search/Exam
Jul 24, 2019
Filing of the translations of the claims
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Jul 24, 2019
French translation of claims
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Jul 24, 2019
Letter accompanying subsequently filed items
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Intention to grant (signatures)
Search/Exam
Apr 17, 2019
Text intended for grant (clean copy)
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Apr 17, 2019
Mar 25, 2019
(Electronic) Receipt
Search/Exam
Mar 25, 2019
Enquiry as to the processing of the file
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Letter accompanying subsequently filed items
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Jan 14, 2019
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Amended claims with annotations
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Dec 21, 2018
Claims
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Dec 21, 2018
Claims
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Claims
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Description
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Description
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Description
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Description
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Dec 12, 2018
Notification of forthcoming publication
Search/Exam
Nov 7, 2018
Annex to the communication
Search/Exam
Nov 7, 2018
Communication from the Examining Division
Search/Exam
Oct 16, 2018
Examination started
Search/Exam
Jul 11, 2018
(Electronic) Receipt
Search/Exam
Jul 11, 2018
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Amended claims with annotations
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Amended claims with annotations
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Amended claims with annotations
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Amended description with annotations
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Amended description with annotations
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Amended description with annotations
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Jul 11, 2018
Amendments received before examination
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Jul 11, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 29, 2018
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European search opinion
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Jan 29, 2018
European search report
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Jan 29, 2018
Information on Search Strategy
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Jan 15, 2018
Search started
Search/Exam
Sep 5, 2017
Drawings
Search/Exam
Sep 5, 2017
Matter concerning the application
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Aug 29, 2017
Communication to designated inventor
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Aug 29, 2017
Communication to designated inventor
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Jul 6, 2017
Abstract
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Jul 6, 2017
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Claims
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Jul 6, 2017
Description
Search/Exam
Jul 6, 2017
Designation of inventor
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Jul 6, 2017
Drawings
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Jul 6, 2017
Request for grant of a European patent
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