The weekly litigation news digest is live. Subscribe now
The patent EP3429882 was granted to Tiss on Jun 7, 2023. The application was filed on Mar 14, 2017 under application number EP17713052A. 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 |
|---|---|---|---|
| FUELDEFEND | Mar 6, 2024 | ABEL & IMRAY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | GB2476636 |
| INTERNATIONAL-SEARCH-REPORT | US2010193042 |
| INTERNATIONAL-SEARCH-REPORT | US5476185 |
| OPPOSITION | US4650087 |
| OPPOSITION | US5476185 |
| OPPOSITION | US7721902 |
| OPPOSITION | WO2010043874 |
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
Get instant alerts for new documents
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Means of redress
OPPO
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Dec 16, 2025
Nov 27, 2025
Nov 21, 2025
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Oct 7, 2025
Oct 7, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Sep 26, 2025
Feb 7, 2025
Feb 7, 2025
Feb 7, 2025
Feb 7, 2025
Feb 7, 2025
Jul 24, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Jul 19, 2024
Mar 20, 2024
Mar 20, 2024
Mar 13, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Jun 20, 2023
May 11, 2023
Decision to grant a European patent
Search/Exam
Mar 31, 2023
(Electronic) Receipt
Search/Exam
Mar 31, 2023
Filing of the translations of the claims
Search/Exam
Mar 31, 2023
French translation of claims
Search/Exam
Mar 31, 2023
German translation of the claims
Search/Exam
Mar 31, 2023
Nov 21, 2022
Nov 21, 2022
Nov 21, 2022
Nov 21, 2022
Intention to grant (signatures)
Search/Exam
Nov 21, 2022
Text intended for grant (clean copy)
Search/Exam
Nov 21, 2022
Jul 21, 2022
(Electronic) Receipt
Search/Exam
Jul 21, 2022
Amended claims with annotations
Search/Exam
Jul 21, 2022
Amended description with annotations
Search/Exam
Jul 21, 2022
Claims
Search/Exam
Jul 21, 2022
Description
Search/Exam
Jul 21, 2022
Drawings
Search/Exam
Jul 21, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 21, 2022
Jul 20, 2022
Jul 13, 2022
Document concerning representation
Search/Exam
Jul 12, 2022
Letter accompanying subsequently filed items
Search/Exam
May 4, 2022
Mar 17, 2022
Annex to the communication
Search/Exam
Mar 17, 2022
Communication from the Examining Division
Search/Exam
Mar 11, 2022
Examination started
Search/Exam
Sep 23, 2021
Sep 10, 2021
(Electronic) Receipt
Search/Exam
Sep 10, 2021
Enquiry as to the processing of the file
Search/Exam
Sep 10, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 18, 2019
Jan 9, 2019
(Electronic) Receipt
Search/Exam
Jan 9, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 9, 2019
Letter concerning the inventor
Search/Exam
Jan 4, 2019
Communication to designated inventor
Search/Exam
Jan 4, 2019
Communication to designated inventor
Search/Exam
Jan 4, 2019
Communication to designated inventor
Search/Exam
Jan 4, 2019
Dec 12, 2018
(Electronic) Receipt
Search/Exam
Dec 12, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 12, 2018
Nov 22, 2018
Nov 22, 2018
Nov 22, 2018
Nov 12, 2018
Letter which had not been notified
Search/Exam
Nov 12, 2018
Letter which had not been notified
Search/Exam
Nov 8, 2018
Letter which had not been notified
Search/Exam
Oct 30, 2018
Oct 26, 2018
Communication to designated inventor
Search/Exam
Oct 26, 2018
Communication to designated inventor
Search/Exam
Oct 26, 2018
Communication to designated inventor
Search/Exam
Oct 15, 2018
(Electronic) Receipt
Search/Exam
Oct 15, 2018
Oct 15, 2018
Amendments received before examination
Search/Exam
Oct 15, 2018
Request for entry into the European phase
Search/Exam
Oct 3, 2018
Jul 25, 2018
Information on entry into European phase
Search/Exam
Oct 10, 2017
Sep 21, 2017
Copy of the international search report
Search/Exam
Sep 21, 2017
Published international application - A1
Search/Exam
Jun 28, 2017
ISR: cited documents
PCTISA
Jun 26, 2017
Jun 26, 2017
Jun 26, 2017
May 19, 2017
May 19, 2017
May 19, 2017
May 19, 2017
Apr 6, 2017
Mar 24, 2017
Abstract
PCTISA
Mar 24, 2017
Claims
PCTISA
Mar 24, 2017
Description
PCTISA
Mar 24, 2017
Drawings
PCTISA
Mar 24, 2017
Mar 24, 2017
Mar 24, 2017
Mar 24, 2017
Mar 24, 2017
Mar 24, 2017