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The patent EP3064891 was granted to Mitutoyo on Dec 23, 2020. The application was filed on Jul 3, 2015 under application number EP15175250A. 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 |
|---|---|---|---|
| CARL ZEISS | Jul 4, 2018 | WITTE | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP4417114B |
| OPPOSITION | DE102004010566 |
| OPPOSITION | DE102010034482 |
| OPPOSITION | US2005055839 |
| OPPOSITION | US2007056177 |
| OPPOSITION | US5209131 |
| OPPOSITION | US5345689 |
| OPPOSITION | WO0060307 |
| OPPOSITION | WO2005088238 |
| SEARCH | US2005055839 |
| SEARCH | US2007056177 |
| SEARCH | US5209131 |
| SEARCH | US5345689 |
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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Nov 26, 2020
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Nov 11, 2020
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Sep 16, 2020
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Sep 15, 2020
Refund of fees
Search/Exam
Sep 11, 2020
Sep 11, 2020
Sep 10, 2020
Sep 9, 2020
Sep 4, 2020
Sep 3, 2020
(Electronic) Receipt
Appeal
Sep 3, 2020
Sep 3, 2020
Withdrawal of an appeal
Appeal
Aug 17, 2020
Aug 17, 2020
Aug 6, 2020
(Electronic) Receipt
Appeal
Aug 6, 2020
Aug 6, 2020
Notice of appeal
Appeal
Jun 2, 2020
May 29, 2020
May 27, 2020
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Means of redress
OPPO
May 27, 2020
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Claims
OPPO
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OPPO
Aug 23, 2019
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OPPO
Aug 23, 2019
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OPPO
Aug 23, 2019
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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
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Oct 12, 2017
Sep 7, 2017
Decision to grant a European patent
Search/Exam
Aug 23, 2017
Filing of the translations of the claims
Search/Exam
Aug 23, 2017
French translation of claims
Search/Exam
Aug 23, 2017
German translation of the claims
Search/Exam
Aug 23, 2017
Payment of fees and costs
Search/Exam
Jun 20, 2017
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Intention to grant (signatures)
Search/Exam
Jun 20, 2017
Text intended for grant (clean copy)
Search/Exam
Jun 20, 2017
May 29, 2017
Examination started
Search/Exam
Feb 14, 2017
(Electronic) Receipt
Search/Exam
Feb 14, 2017
Feb 14, 2017
Amended claims with annotations
Search/Exam
Feb 14, 2017
Feb 14, 2017
Amended description with annotations
Search/Exam
Feb 14, 2017
Amendments received before examination
Search/Exam
Feb 14, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 12, 2016
Aug 10, 2016
Notification of forthcoming publication
Search/Exam
Aug 3, 2016
Aug 3, 2016
European search opinion
Search/Exam
Aug 3, 2016
European search report
Search/Exam
Aug 3, 2016
Information on Search Strategy
Search/Exam
Jul 20, 2016
Search started
Search/Exam
Sep 16, 2015
Sep 3, 2015
Aug 26, 2015
Communication to designated inventor
Search/Exam
Aug 26, 2015
Communication to designated inventor
Search/Exam
Aug 26, 2015
Communication to designated inventor
Search/Exam
Jul 3, 2015
Abstract
Search/Exam
Jul 3, 2015
Jul 3, 2015
Claims
Search/Exam
Jul 3, 2015
Description
Search/Exam
Jul 3, 2015
Designation of inventor
Search/Exam
Jul 3, 2015
Drawings
Search/Exam
Jul 3, 2015
Request for grant of a European patent
Search/Exam