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The patent EP3288817 was granted to Zephyros on Jul 28, 2021. The application was filed on Apr 28, 2016 under application number EP16722476A. 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 |
|---|---|---|---|
| HENKEL | Apr 26, 2022 | KBN | ADMISSIBLE |
| HENKEL | Apr 26, 2022 | PATENTANWALTE BAUER VORBERG KAYSER | ADMISSIBLE |
| SIKA TECHNOLOGY | Apr 12, 2022 | SIKA PATENT ATTORNEYS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US4751249 |
| DESCRIPTION | US4901500 |
| DESCRIPTION | US5755486 |
| DESCRIPTION | US7249415 |
| DESCRIPTION | US7784186 |
| INTERNATIONAL-SEARCH-REPORT | DE202007018160U |
| INTERNATIONAL-SEARCH-REPORT | US2004262853 |
| INTERNATIONAL-SEARCH-REPORT | US2007138683 |
| INTERNATIONAL-SEARCH-REPORT | WO0055444 |
| INTERNATIONAL-SEARCH-REPORT | WO0183206 |
| OPPOSITION | DE202007018160U |
| OPPOSITION | EP0060562 |
| OPPOSITION | EP1031496 |
| OPPOSITION | EP2236358 |
| OPPOSITION | US2004051251 |
| OPPOSITION | US2004262853 |
| OPPOSITION | US2006043772 |
| OPPOSITION | US2007138683 |
| OPPOSITION | US2009223739 |
| OPPOSITION | US2009233055 |
| OPPOSITION | US2011241383 |
| OPPOSITION | US2013241226 |
| OPPOSITION | US2014322493 |
| OPPOSITION | US4813690 |
| OPPOSITION | US5766719 |
| OPPOSITION | WO0055444 |
| OPPOSITION | WO0124989 |
| OPPOSITION | WO0183206 |
| OPPOSITION | WO2009049886 |
| OPPOSITION | WO2009091953 |
| OPPOSITION | WO2010117897 |
| OPPOSITION | WO2011012997 |
| OPPOSITION | WO2011134943 |
| OPPOSITION | WO2012174504 |
| OPPOSITION | WO2012177830 |
| OPPOSITION | WO2013138290 |
| OPPOSITION | WO2014178890 |
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 11, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
Mar 17, 2025
Reply to appeal
Appeal
Mar 17, 2025
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Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Appeal
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Notice of appeal
Appeal
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Aug 10, 2021
Jul 1, 2021
Decision to grant a European patent
Search/Exam
Jun 17, 2021
(Electronic) Receipt
Search/Exam
Jun 17, 2021
Filing of the translations of the claims
Search/Exam
Jun 17, 2021
French translation of claims
Search/Exam
Jun 17, 2021
German translation of the claims
Search/Exam
Jun 17, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 11, 2021
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Intention to grant (signatures)
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Feb 11, 2021
Text intended for grant (clean copy)
Search/Exam
Feb 11, 2021
Sep 9, 2020
(Electronic) Receipt
Search/Exam
Sep 9, 2020
Claims
Search/Exam
Sep 9, 2020
Description
Search/Exam
Sep 9, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 9, 2020
May 7, 2020
Annex to the communication
Search/Exam
May 7, 2020
Communication from the Examining Division
Search/Exam
Apr 29, 2020
Examination started
Search/Exam
May 17, 2019
Apr 30, 2019
(Electronic) Receipt
Search/Exam
Apr 30, 2019
Enquiry as to the processing of the file
Search/Exam
Apr 30, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 19, 2018
Submission concerning representation
Search/Exam
Jul 25, 2018
Refund of fees
Search/Exam
Jul 17, 2018
(Electronic) Receipt
Search/Exam
Jul 17, 2018
Jul 17, 2018
Amended claims with annotations
Search/Exam
Jul 17, 2018
Amendments received before examination
Search/Exam
Jul 17, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 23, 2018
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Dec 8, 2017
Communication to designated inventor
Search/Exam
Dec 8, 2017
Communication to designated inventor
Search/Exam
Dec 8, 2017
Communication to designated inventor
Search/Exam
Dec 8, 2017
Communication to designated inventor
Search/Exam
Nov 28, 2017
(Electronic) Receipt
Search/Exam
Nov 28, 2017
Nov 28, 2017
Request for entry into the European phase
Search/Exam
Nov 13, 2017
Sep 8, 2017
Information on entry into European phase
Search/Exam
Nov 22, 2016
Nov 22, 2016
Nov 3, 2016
Copy of the international search report
Search/Exam
Nov 3, 2016
Published international application - A1
Search/Exam
Jul 25, 2016
ISR: cited documents
PCTISA
Jul 22, 2016
Jul 22, 2016
Jul 22, 2016
May 26, 2016
May 9, 2016
Abstract
PCTISA
May 9, 2016
Annex
PCTISA
May 9, 2016
Claims
PCTISA
May 9, 2016
Description
PCTISA
May 9, 2016
Drawings
PCTISA
May 9, 2016
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