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The patent EP3545079 was granted to Cambridge Enterprise on Jun 11, 2025. The application was filed on Nov 24, 2017 under application number EP17807909A. 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 |
|---|---|---|---|
| OETKE | Jan 5, 2023 | WALLINGER RICKER SCHLOTTER TOSTMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | WO2010109187 |
| INTERNATIONAL-SEARCH-REPORT | WO2010117464 |
| INTERNATIONAL-SEARCH-REPORT | WO2016183041 |
| OPPOSITION | CN112852877 |
| OPPOSITION | WO2018096343 |
| OTHER | WO2010109187 |
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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Jul 1, 2025
Jun 24, 2025
(Electronic) Receipt
Search/Exam
Jun 24, 2025
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Refund of fees
Appeal
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(Electronic) Receipt
Appeal
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Withdrawal of an appeal
Appeal
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(Electronic) Receipt
Appeal
Dec 24, 2024
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Notice of appeal
Appeal
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Mar 11, 2022
Decision to grant a European patent
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Feb 25, 2022
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Feb 25, 2022
Filing of the translations of the claims
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Feb 25, 2022
French translation of claims
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Feb 25, 2022
German translation of the claims
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Feb 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 27, 2021
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Intention to grant (signatures)
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Oct 27, 2021
Text intended for grant (clean copy)
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Oct 27, 2021
Text intended for grant (sequence listing)
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Oct 27, 2021
Jun 11, 2021
(Electronic) Receipt
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Jun 11, 2021
Amended claims with annotations
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Jun 11, 2021
Amended description with annotations
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Jun 11, 2021
Claims
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Jun 11, 2021
Description
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Jun 11, 2021
Letter accompanying subsequently filed items
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Jun 11, 2021
Feb 16, 2021
Annex to the communication
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Feb 16, 2021
Communication from the Examining Division
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Nov 20, 2020
(Electronic) Receipt
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Nov 20, 2020
Amended claims with annotations
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Amended description with annotations
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Claims
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Description
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Nov 20, 2020
Letter accompanying subsequently filed items
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Nov 10, 2020
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Annex to the communication
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Sep 21, 2020
Communication from the Examining Division
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Sep 14, 2020
Examination started
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(Electronic) Receipt
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Jun 8, 2020
Letter accompanying subsequently filed items
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Jun 8, 2020
Non-patent literature filed by a third party
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Patent document filed by a Third party
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Jan 24, 2020
(Electronic) Receipt
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Amended claims with annotations
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Jan 24, 2020
Amendments received before examination
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Jan 24, 2020
Letter accompanying subsequently filed items
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Sep 4, 2019
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Communication to designated inventor
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Jul 15, 2019
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Jun 21, 2019
(Electronic) Receipt
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Jun 21, 2019
Matter concerning the application
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Jun 21, 2019
Request for entry into the European phase
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Jun 12, 2019
Apr 5, 2019
Information on entry into European phase
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Jun 21, 2018
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May 31, 2018
Converted Sequence Listing
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May 31, 2018
Copy of the international search report
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May 31, 2018
Published international application - A1
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Mar 26, 2018
ISR: cited documents
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Abstract
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Claims
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Description
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Drawings
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Sequence listing
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