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The patent EP3621766 was granted to Nanoscribe on Jan 5, 2022. The application was filed on Feb 7, 2018 under application number EP18703777A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| UPNANO | Oct 5, 2022 | SONN PATENTANWALTE | ADMISSIBLE |
| MULTIPHOTON OPTICS | Oct 5, 2022 | STREHL & PARTNER | WITHDRAWN |
| MULTIPHOTON OPTICS | Oct 5, 2022 | STREHL SCHUBEL HOPF & PARTNER | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US4575330 |
| DESCRIPTION | US5247180 |
| EXAMINATION | US6730256 |
| INTERNATIONAL-SEARCH-REPORT | EP0606839 |
| INTERNATIONAL-SEARCH-REPORT | EP3093123 |
| INTERNATIONAL-SEARCH-REPORT | JP2015124395 |
| INTERNATIONAL-SEARCH-REPORT | US2015183165 |
| INTERNATIONAL-SEARCH-REPORT | US2016046070 |
| INTERNATIONAL-SEARCH-REPORT | US2017066052 |
| OPPOSITION | EP2186625 |
| OPPOSITION | WO2017062630 |
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 17, 2025
Nov 11, 2025
(Electronic) Receipt
Appeal
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Reply to appeal
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(Electronic) Receipt
Appeal
May 5, 2025
Notice of appeal
Appeal
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Appeal
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Jan 18, 2022
Dec 9, 2021
Decision to grant a European patent
Search/Exam
Nov 24, 2021
(Electronic) Receipt
Search/Exam
Nov 24, 2021
English translation of the claims
Search/Exam
Nov 24, 2021
Filing of the translations of the claims
Search/Exam
Nov 24, 2021
French translation of claims
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Nov 24, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 4, 2021
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Intention to grant (signatures)
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Aug 4, 2021
Text intended for grant (clean copy)
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Aug 4, 2021
Apr 12, 2021
Apr 6, 2021
(Electronic) Receipt
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Apr 6, 2021
Amended claims with annotations
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Apr 6, 2021
Amended claims with annotations
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Apr 6, 2021
Amended description with annotations
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Apr 6, 2021
Amended description with annotations
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Apr 6, 2021
Claims
Search/Exam
Apr 6, 2021
Claims
Search/Exam
Apr 6, 2021
Description
Search/Exam
Apr 6, 2021
Description
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Apr 6, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 6, 2021
Mar 29, 2021
(Electronic) Receipt
Search/Exam
Mar 29, 2021
Annexes in respect of a client data request
Search/Exam
Mar 29, 2021
Letter accompanying subsequently filed items
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Mar 29, 2021
Dec 1, 2020
Annex to the communication
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Dec 1, 2020
Communication from the Examining Division
Search/Exam
Nov 26, 2020
Examination started
Search/Exam
Jun 10, 2020
(Electronic) Receipt
Search/Exam
Jun 10, 2020
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Amended claims with annotations
Search/Exam
Jun 10, 2020
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Amended description with annotations
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Jun 10, 2020
Amendments received before examination
Search/Exam
Jun 10, 2020
Letter accompanying subsequently filed items
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Feb 19, 2020
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Jan 10, 2020
Dec 18, 2019
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Communication to designated inventor
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Dec 16, 2019
Communication to designated inventor
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Nov 27, 2019
(Electronic) Receipt
Search/Exam
Nov 27, 2019
Priority search results
Search/Exam
Nov 27, 2019
Request for entry into the European phase
Search/Exam
Nov 26, 2019
Sep 20, 2019
Information on entry into European phase
Search/Exam
Dec 6, 2018
Nov 15, 2018
Copy of the international search report
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Nov 15, 2018
Copy of the international search report
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Nov 15, 2018
Published international application - A1
Search/Exam
Jul 25, 2018
ISR: cited documents
PCTISA
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Feb 7, 2018
(Electronic) Receipt
PCTRO
Feb 7, 2018
Abstract
PCTRO
Feb 7, 2018
Claims
PCTRO
Feb 7, 2018
Description
PCTRO
Feb 7, 2018
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Drawings
PCTRO
Feb 7, 2018