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The patent EP3604509 was granted to CHR Hansen on Mar 31, 2021. The application was originally filed on May 22, 2013 under application number EP19174281A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| DUPONT NUTRITION BIOSCIENCES APS | Dec 20, 2021 | D YOUNG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO0236752 |
| OPPOSITION | EP3604509 |
| OPPOSITION | US2008226768 |
| OPPOSITION | US2011287137 |
| OPPOSITION | WO2008098973 |
| OPPOSITION | WO2013174840 |
| OPPOSITION | WO2015128417 |
| SEARCH | WO2013164481 |
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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Decision to grant a European patent
Search/Exam
Feb 23, 2021
(Electronic) Receipt
Search/Exam
Feb 23, 2021
Filing of the translations of the claims
Search/Exam
Feb 23, 2021
French translation of claims
Search/Exam
Feb 23, 2021
German translation of the claims
Search/Exam
Feb 23, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 24, 2020
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Intention to grant (signatures)
Search/Exam
Nov 24, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 24, 2020
Text intended for grant (sequence listing)
Search/Exam
Nov 24, 2020
Nov 2, 2020
Examination started
Search/Exam
Aug 3, 2020
Refund of fees
Search/Exam
Jul 30, 2020
Jul 23, 2020
(Electronic) Receipt
Search/Exam
Jul 23, 2020
Jul 23, 2020
Amended description with annotations
Search/Exam
Jul 23, 2020
Amendments received before examination
Search/Exam
Jul 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Feb 10, 2020
Jan 9, 2020
Notification of forthcoming publication
Search/Exam
Oct 29, 2019
Refund of fees
Search/Exam
Oct 24, 2019
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European search opinion
Search/Exam
Oct 24, 2019
European search report
Search/Exam
Oct 24, 2019
Information on Search Strategy
Search/Exam
Sep 26, 2019
Priority search results copy provided by EPO
Search/Exam
Sep 24, 2019
(Electronic) Receipt
Search/Exam
Sep 24, 2019
Converted Sequence Listing
Search/Exam
Sep 24, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 24, 2019
Sep 5, 2019
Aug 22, 2019
(Electronic) Receipt
Search/Exam
Aug 22, 2019
(Electronic) Receipt
Search/Exam
Aug 22, 2019
Abstract
Search/Exam
Aug 22, 2019
Claims
Search/Exam
Aug 22, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 22, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 22, 2019
Letter concerning the inventor
Search/Exam
Aug 22, 2019
Aug 7, 2019
Communication to designated inventor
Search/Exam
Aug 7, 2019
Communication to designated inventor
Search/Exam
Aug 7, 2019
Communication to designated inventor
Search/Exam
Aug 7, 2019
Communication to designated inventor
Search/Exam
Aug 7, 2019
Communication to designated inventor
Search/Exam
Jul 16, 2019
Deficiencies in sequence listing
Search/Exam
Jul 2, 2019
Invitation to file claims
Search/Exam
Jul 2, 2019
May 14, 2019
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Description
Search/Exam
May 14, 2019
Designation of inventor
Search/Exam
May 14, 2019
Drawings
Search/Exam
May 14, 2019
Previously filed application
Search/Exam
May 14, 2019
Request for grant of a European patent
Search/Exam
May 14, 2019
Sequence listing
Search/Exam
Dec 19, 2013
Nov 28, 2013
Converted Sequence Listing
Search/Exam