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The patent EP3319796 was granted to Konrad Hornschuch on May 11, 2022. The application was filed on Jul 4, 2016 under application number EP16733993A. 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 |
|---|---|---|---|
| RENOLIT UK | Feb 8, 2023 | ZELLENTIN & PARTNER MBB PATENTANWALTE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE4032139 |
| INTERNATIONAL-SEARCH-REPORT | JPH1084788 |
| INTERNATIONAL-SEARCH-REPORT | US2014287204 |
| OPPOSITION | DE4032139 |
| OPPOSITION | EP1277806 |
| OPPOSITION | FR2918670 |
| OPPOSITION | US2003212178 |
| OPPOSITION | US2007009752 |
| OPPOSITION | US2012164364 |
| OPPOSITION | US2014287204 |
| OPPOSITION | WO2017005681 |
| OTHER | US2003212178 |
| OTHER | US2007009752 |
| OTHER | US2012164364 |
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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Sep 17, 2025
Sep 17, 2025
Aug 19, 2025
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May 22, 2025
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(Electronic) Receipt
Appeal
May 19, 2025
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Feb 17, 2025
(Electronic) Receipt
Appeal
Feb 17, 2025
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Jan 13, 2025
(Electronic) Receipt
Appeal
Jan 13, 2025
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Reply to appeal
Appeal
Jan 13, 2025
Sep 13, 2024
Sep 10, 2024
(Electronic) Receipt
Appeal
Sep 10, 2024
Sep 10, 2024
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Jul 16, 2024
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Jul 10, 2024
(Electronic) Receipt
Appeal
Jul 10, 2024
Jul 10, 2024
Notice of appeal
Appeal
May 10, 2024
May 10, 2024
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Means of redress
OPPO
May 10, 2024
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May 24, 2022
Apr 14, 2022
Decision to grant a European patent
Search/Exam
Apr 6, 2022
(Electronic) Receipt
Search/Exam
Apr 6, 2022
English translation of the claims
Search/Exam
Apr 6, 2022
French translation of claims
Search/Exam
Apr 6, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 19, 2022
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Intention to grant (signatures)
Search/Exam
Jan 19, 2022
Text intended for grant (clean copy)
Search/Exam
Jan 19, 2022
Mar 15, 2021
Jan 29, 2021
Jan 6, 2021
General enquiry
Search/Exam
Jan 6, 2021
General enquiry
Search/Exam
Jan 6, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 6, 2021
Nov 19, 2020
Nov 17, 2020
Observations by third parties
Search/Exam
Nov 13, 2020
Observations by third parties
Search/Exam
Nov 13, 2020
Patent document filed by a Third party
Search/Exam
Nov 13, 2020
Patent document filed by a Third party
Search/Exam
Nov 13, 2020
Patent document filed by a Third party
Search/Exam
Sep 17, 2020
(Electronic) Receipt
Search/Exam
Sep 17, 2020
Claims
Search/Exam
Sep 17, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 17, 2020
Jun 9, 2020
Annex to the communication
Search/Exam
Jun 9, 2020
Communication from the Examining Division
Search/Exam
May 26, 2020
(Electronic) Receipt
Search/Exam
May 26, 2020
English translation of the claims
Search/Exam
May 26, 2020
French translation of claims
Search/Exam
May 26, 2020
Letter accompanying subsequently filed items
Search/Exam
May 20, 2020
May 13, 2020
Citation filed by a third party
Search/Exam
May 13, 2020
Non-patent literature filed by a third party
Search/Exam
May 13, 2020
Observations by third parties
Search/Exam
Apr 20, 2020
Apr 20, 2020
Apr 9, 2020
Apr 8, 2020
(Electronic) Receipt
Search/Exam
Apr 8, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 8, 2020
Apr 1, 2020
(Electronic) Receipt
Search/Exam
Apr 1, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 1, 2020
Mar 25, 2020
Mar 25, 2020
Mar 25, 2020
Intention to grant (signatures)
Search/Exam
Mar 25, 2020
Text intended for grant (clean copy)
Search/Exam
Mar 25, 2020
Mar 11, 2020
Examination started
Search/Exam
Dec 16, 2019
Aug 20, 2018
(Electronic) Receipt
Search/Exam
Aug 20, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 20, 2018
Reply to Written Opinion prepared by the EPO
Search/Exam
Jul 23, 2018
Payment of fees and costs
Search/Exam
Jul 23, 2018
Payment of fees and costs
Search/Exam
Apr 18, 2018
Feb 13, 2018
Feb 9, 2018
Communication to designated inventor
Search/Exam
Feb 9, 2018
Communication to designated inventor
Search/Exam
Feb 9, 2018
Communication to designated inventor
Search/Exam
Feb 1, 2018
Jan 23, 2018
(Electronic) Receipt
Search/Exam
Jan 23, 2018
Request for entry into the European phase
Search/Exam
Nov 17, 2017
Information on entry into European phase
Search/Exam
Jan 30, 2017
Jan 12, 2017
Copy of the international search report
Search/Exam
Jan 12, 2017
Copy of the international search report
Search/Exam
Jan 12, 2017
Published international application - A1
Search/Exam
Sep 29, 2016
Sep 29, 2016
Sep 29, 2016
Jul 8, 2016
Jul 4, 2016
(Electronic) Receipt
PCTRO
Jul 4, 2016
Abstract
PCTRO
Jul 4, 2016
Claims
PCTRO
Jul 4, 2016
Description
PCTRO
Jul 4, 2016
Jul 4, 2016
Drawings
PCTRO
Jul 4, 2016