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The patent EP2988756 was granted to Guerbet on May 18, 2022. The application was filed on Apr 28, 2014 under application number EP14723750A. 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 |
|---|---|---|---|
| MASCHIO & SOAMES | Dec 8, 2017 | DEMPSTER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0438206 |
| DESCRIPTION | EP0454078 |
| DESCRIPTION | EP1931673 |
| DESCRIPTION | US2004170566 |
| DESCRIPTION | US4647447 |
| DESCRIPTION | US5403572 |
| DESCRIPTION | US5876695 |
| DESCRIPTION | US6440956 |
| DESCRIPTION | WO2009103744 |
| DESCRIPTION | WO9311800 |
| INTERNATIONAL-SEARCH-REPORT | EP2554167 |
| INTERNATIONAL-SEARCH-REPORT | FR2891830 |
| INTERNATIONAL-SEARCH-REPORT | FR2927539 |
| INTERNATIONAL-SEARCH-REPORT | WO8900052 |
| OPPOSITION | EP0454078 |
| OPPOSITION | EP0481526 |
| OPPOSITION | EP1931673 |
| OPPOSITION | US5876695 |
| OPPOSITION | WO2009103744 |
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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Apr 26, 2022
Apr 26, 2022
Apr 21, 2022
Apr 6, 2022
Apr 6, 2022
Apr 6, 2022
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Apr 6, 2022
Jan 17, 2022
(Electronic) Receipt
Appeal
Jan 17, 2022
Jan 17, 2022
Jan 4, 2022
Refund of fees
Appeal
Jan 3, 2022
Jan 3, 2022
Jan 3, 2022
Dec 23, 2021
Dec 23, 2021
Dec 20, 2021
Dec 17, 2021
(Electronic) Receipt
Appeal
Dec 17, 2021
Advice of delivery
Appeal
Dec 17, 2021
Dec 17, 2021
Dec 17, 2021
Dec 14, 2021
(Electronic) Receipt
Appeal
Dec 14, 2021
Dec 14, 2021
Dec 14, 2021
Withdrawal of an appeal
Appeal
Aug 6, 2021
Aug 3, 2021
(Electronic) Receipt
Appeal
Aug 3, 2021
Aug 3, 2021
May 28, 2021
(Electronic) Receipt
Appeal
May 28, 2021
May 28, 2021
May 26, 2021
(Electronic) Receipt
Appeal
May 26, 2021
May 26, 2021
May 10, 2021
May 10, 2021
May 5, 2021
Jan 13, 2021
Dec 22, 2020
(Electronic) Receipt
Appeal
Dec 22, 2020
Dec 22, 2020
Nov 5, 2020
Oct 29, 2020
(Electronic) Receipt
Appeal
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Sep 3, 2020
(Electronic) Receipt
Appeal
Sep 3, 2020
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Jun 5, 2020
May 11, 2020
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(Electronic) Receipt
Appeal
May 5, 2020
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Feb 11, 2020
Feb 5, 2020
(Electronic) Receipt
Appeal
Feb 5, 2020
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Claims
Appeal
Feb 5, 2020
Claims
Appeal
Feb 5, 2020
Claims
Appeal
Feb 5, 2020
Claims
Appeal
Feb 5, 2020
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Reply to appeal
Appeal
Sep 25, 2019
Sep 19, 2019
(Electronic) Receipt
Appeal
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Jul 18, 2019
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Processing of an appeal
Appeal
Jul 10, 2019
(Electronic) Receipt
Appeal
Jul 10, 2019
Jul 10, 2019
Notice of appeal
Appeal
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OPPO
Jan 7, 2019
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OPPO
Jan 7, 2019
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OPPO
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OPPO
May 14, 2018
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OPPO
May 14, 2018
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OPPO
May 14, 2018
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OPPO
May 14, 2018
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OPPO
May 14, 2018
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OPPO
May 14, 2018
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OPPO
May 14, 2018
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OPPO
May 14, 2018
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OPPO
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Decision to grant a European patent
Search/Exam
Jan 23, 2017
(Electronic) Receipt
Search/Exam
Jan 23, 2017
English translation of the claims
Search/Exam
Jan 23, 2017
Filing of the translations of the claims
Search/Exam
Jan 23, 2017
German translation of the claims
Search/Exam
Jan 23, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 20, 2016
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Intention to grant (signatures)
Search/Exam
Sep 20, 2016
Text intended for grant (clean copy)
Search/Exam
Sep 20, 2016
Aug 23, 2016
Examination started
Search/Exam
Feb 3, 2016
Jan 21, 2016
Dec 24, 2015
Letter which had not been notified
Search/Exam
Dec 4, 2015
Dec 2, 2015
Communication to designated inventor
Search/Exam
Dec 2, 2015
Communication to designated inventor
Search/Exam
Dec 2, 2015
Communication to designated inventor
Search/Exam
Dec 2, 2015
Communication to designated inventor
Search/Exam
Nov 28, 2015
Priority search results copy provided by EPO
Search/Exam
Nov 25, 2015
(Electronic) Receipt
Search/Exam
Nov 25, 2015
Request for entry into the European phase
Search/Exam
Nov 11, 2015
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Sep 14, 2015
Sep 4, 2015
Information on entry into European phase
Search/Exam
Nov 18, 2014
Oct 30, 2014
Copy of the international search report
Search/Exam
Oct 30, 2014
Copy of the international search report
Search/Exam
Oct 30, 2014
Published international application - A1
Search/Exam
Jul 31, 2014
Jul 7, 2014
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Apr 28, 2014
(Electronic) Receipt
PCTRO
Apr 28, 2014
Abstract
PCTRO
Apr 28, 2014
Claims
PCTRO
Apr 28, 2014
Description
PCTRO