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The patent EP3247987 was granted to Leica Mikrosysteme on Oct 25, 2023. The application was filed on Jan 14, 2016 under application number EP16700591A. 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 |
|---|---|---|---|
| QUORUM | Jun 2, 2021 | GREAVES BREWSTER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2009078060 |
| OPPOSITION | EP1852888 |
| OPPOSITION | EP3175218 |
| OPPOSITION | JP2013257148 |
| OPPOSITION | US2009242795 |
| OPPOSITION | US2011027876 |
| OPPOSITION | US2012024086 |
| OPPOSITION | US2012027086 |
| OPPOSITION | US2015340199 |
| OPPOSITION | US4833330 |
| OPPOSITION | US4950901 |
| OPPOSITION | US7644637 |
| OPPOSITION | US8440982 |
| OPPOSITION | WO0211174 |
| OPPOSITION | WO2009116696 |
| OPPOSITION | WO2009145377 |
| OPPOSITION | WO2014002700 |
| OPPOSITION | WO2016016001 |
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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Document concerning representation
Search/Exam
Sep 14, 2020
Aug 6, 2020
Decision to grant a European patent
Search/Exam
Jul 27, 2020
(Electronic) Receipt
Search/Exam
Jul 27, 2020
English translation of the claims
Search/Exam
Jul 27, 2020
Filing of the translations of the claims
Search/Exam
Jul 27, 2020
French translation of claims
Search/Exam
Jul 27, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 27, 2020
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Intention to grant (signatures)
Search/Exam
Mar 27, 2020
Text intended for grant (clean copy)
Search/Exam
Mar 27, 2020
Mar 12, 2020
Examination started
Search/Exam
Mar 9, 2020
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(Electronic) Receipt
Search/Exam
Mar 2, 2020
Enquiry as to the processing of the file
Search/Exam
Mar 2, 2020
Letter accompanying subsequently filed items
Search/Exam
May 24, 2018
Priority search results
Search/Exam
May 24, 2018
Apr 19, 2018
Feb 27, 2018
(Electronic) Receipt
Search/Exam
Feb 27, 2018
Feb 27, 2018
Amended claims with annotations
Search/Exam
Feb 27, 2018
Amendments received before examination
Search/Exam
Feb 27, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 3, 2017
Aug 29, 2017
Aug 25, 2017
Communication to designated inventor
Search/Exam
Aug 25, 2017
Communication to designated inventor
Search/Exam
Aug 25, 2017
Communication to designated inventor
Search/Exam
Aug 17, 2017
(Electronic) Receipt
Search/Exam
Aug 17, 2017
Request for entry into the European phase
Search/Exam
Aug 8, 2017
Jun 2, 2017
Information on entry into European phase
Search/Exam
Aug 15, 2016
Jul 28, 2016
Copy of the international search report
Search/Exam
Jul 28, 2016
Published international application - A1
Search/Exam
Apr 12, 2016
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Jan 27, 2016
Jan 14, 2016
(Electronic) Receipt
PCTRO
Jan 14, 2016
Abstract
PCTRO
Jan 14, 2016
Claims
PCTRO
Jan 14, 2016
Description
PCTRO
Jan 14, 2016
Jan 14, 2016
Drawings
PCTRO
Jan 14, 2016