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The patent EP3183336 was granted to Cambridge Enterprise on Jul 9, 2025. The application was filed on Aug 21, 2015 under application number EP15756227A. 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 |
|---|---|---|---|
| KRAUS & LEDERER PARTGMBB | Aug 25, 2021 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | WO2014174470 |
| OPPOSITION | WO2016016894 |
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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Means of redress
OPPO
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Drawings
OPPO
Feb 15, 2024
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Authorisation
OPPO
Oct 11, 2023
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General enquiry
OPPO
Aug 30, 2023
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Dec 7, 2020
Oct 29, 2020
Decision to grant a European patent
Search/Exam
Oct 7, 2020
Sep 8, 2020
(Electronic) Receipt
Search/Exam
Sep 8, 2020
Filing of the translations of the claims
Search/Exam
Sep 8, 2020
French translation of claims
Search/Exam
Sep 8, 2020
German translation of the claims
Search/Exam
Sep 8, 2020
Letter accompanying subsequently filed items
Search/Exam
May 7, 2020
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Intention to grant (signatures)
Search/Exam
May 7, 2020
Text intended for grant (clean copy)
Search/Exam
May 7, 2020
Mar 19, 2020
Document concerning representation
Search/Exam
Jul 22, 2019
(Electronic) Receipt
Search/Exam
Jul 22, 2019
Amended claims with annotations
Search/Exam
Jul 22, 2019
Amended description with annotations
Search/Exam
Jul 22, 2019
Claims
Search/Exam
Jul 22, 2019
Description
Search/Exam
Jul 22, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 22, 2019
Jun 5, 2019
May 31, 2019
(Electronic) Receipt
Search/Exam
May 31, 2019
Letter accompanying subsequently filed items
Search/Exam
May 31, 2019
Jan 21, 2019
Annex to the communication
Search/Exam
Jan 21, 2019
Communication from the Examining Division
Search/Exam
Dec 20, 2018
Dec 14, 2018
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Sep 20, 2018
(Electronic) Receipt
Search/Exam
Sep 20, 2018
Amended claims with annotations
Search/Exam
Sep 20, 2018
Claims
Search/Exam
Sep 20, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 20, 2018
Jul 25, 2018
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(Electronic) Receipt
Search/Exam
Jul 19, 2018
Letter accompanying subsequently filed items
Search/Exam
Jul 19, 2018
Jul 11, 2018
Annex to the communication
Search/Exam
Jul 11, 2018
Consultation by telephone/in person
Search/Exam
Jul 11, 2018
Mar 12, 2018
Annex to the communication
Search/Exam
Mar 12, 2018
Communication from the Examining Division
Search/Exam
Mar 6, 2018
Examination started
Search/Exam
Feb 1, 2018
Decision to allow further processing
Search/Exam
Jan 17, 2018
(Electronic) Receipt
Search/Exam
Jan 17, 2018
Jan 17, 2018
Amended claims with annotations
Search/Exam
Jan 17, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 17, 2018
Jan 17, 2018
Request for further processing
Search/Exam
Nov 15, 2017
Nov 15, 2017
Claim deemed abandoned
Search/Exam
May 31, 2017
Mar 31, 2017
Mar 27, 2017
Communication to designated inventor
Search/Exam
Mar 27, 2017
Communication to designated inventor
Search/Exam
Mar 27, 2017
Communication to designated inventor
Search/Exam
Mar 14, 2017
(Electronic) Receipt
Search/Exam
Mar 14, 2017
Request for entry into the European phase
Search/Exam
Mar 14, 2017
Submission concerning representation
Search/Exam
Mar 13, 2017
Jan 4, 2017
Information on entry into European phase
Search/Exam
Apr 14, 2016
Copy of the international search report
Search/Exam
Apr 14, 2016
Mar 15, 2016
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Feb 25, 2016
Published international application - A2
Search/Exam
Feb 22, 2016
ISR: cited documents
PCTISA
Feb 19, 2016
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Dec 9, 2015
Oct 16, 2015
(Electronic) Receipt
PCTISA
Oct 16, 2015
Oct 16, 2015
Sep 25, 2015
Sep 21, 2015
Sep 21, 2015
Sep 8, 2015
Aug 28, 2015
Abstract
PCTISA
Aug 28, 2015
Claims
PCTISA
Aug 28, 2015
Description
PCTISA
Aug 28, 2015
Drawings
PCTISA
Aug 28, 2015
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