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The patent EP3713905 was granted to Shell Internationale Research Maatschappij on Jun 7, 2023. The application was filed on Nov 20, 2018 under application number EP18800981A. 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 |
|---|---|---|---|
| SCIENTIFIC DESIGN | Mar 7, 2024 | HOEFER & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US3875019 |
| DESCRIPTION | US6417411 |
| DESCRIPTION | WO2006120207 |
| INTERNATIONAL-SEARCH-REPORT | US2002010378 |
| INTERNATIONAL-SEARCH-REPORT | US3875019 |
| OPPOSITION | CN100334052C |
| OPPOSITION | DE1768013 |
| OPPOSITION | GB1403314 |
| OPPOSITION | US2002010378 |
| OPPOSITION | US3875019 |
| OPPOSITION | US3878055 |
| OPPOSITION | US3904656 |
| OPPOSITION | US6514388 |
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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Description
OPPO
Jan 10, 2025
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Authorisation
OPPO
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Authorisation
OPPO
Jul 19, 2024
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Jun 20, 2023
May 11, 2023
Decision to grant a European patent
Search/Exam
Jan 10, 2023
(Electronic) Receipt
Search/Exam
Jan 10, 2023
French translation of claims
Search/Exam
Jan 10, 2023
German translation of the claims
Search/Exam
Jan 10, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 10, 2023
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Oct 19, 2022
Intention to grant (signatures)
Search/Exam
Oct 19, 2022
Text intended for grant (clean copy)
Search/Exam
Oct 19, 2022
Jun 28, 2022
(Electronic) Receipt
Search/Exam
Jun 28, 2022
Amended description with annotations
Search/Exam
Jun 28, 2022
Description
Search/Exam
Jun 28, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 28, 2022
Feb 25, 2022
Annex to the communication
Search/Exam
Feb 25, 2022
Communication from the Examining Division
Search/Exam
Feb 21, 2022
Examination started
Search/Exam
Jan 7, 2021
(Electronic) Receipt
Search/Exam
Jan 7, 2021
Jan 7, 2021
Amended claims with annotations
Search/Exam
Jan 7, 2021
Jan 7, 2021
Amended description with annotations
Search/Exam
Jan 7, 2021
Amendments received before examination
Search/Exam
Jan 7, 2021
Letter accompanying subsequently filed items
Search/Exam
Oct 29, 2020
Oct 26, 2020
Letter which had not been notified
Search/Exam
Sep 2, 2020
Jun 30, 2020
Jun 26, 2020
Communication to designated inventor
Search/Exam
Jun 26, 2020
Communication to designated inventor
Search/Exam
Jun 23, 2020
Priority search results copy provided by EPO
Search/Exam
Jun 11, 2020
May 26, 2020
(Electronic) Receipt
Search/Exam
May 26, 2020
Request for entry into the European phase
Search/Exam
Apr 3, 2020
Information on entry into European phase
Search/Exam
Jun 17, 2019
May 31, 2019
Copy of the international search report
Search/Exam
May 31, 2019
Published international application - A1
Search/Exam
Jan 21, 2019
Jan 21, 2019
Jan 21, 2019
Nov 26, 2018
Nov 20, 2018
(Electronic) Receipt
PCTRO
Nov 20, 2018
Abstract
PCTRO
Nov 20, 2018
Claims
PCTRO
Nov 20, 2018
Description
PCTRO
Nov 20, 2018
Nov 20, 2018
Drawings
PCTRO
Nov 20, 2018
Nov 20, 2018