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The patent EP3721227 was granted to Chemcom on Feb 8, 2023. The application was filed on Dec 5, 2018 under application number EP18825569A. 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 |
|---|---|---|---|
| RIECK | Nov 7, 2023 | FUCHS PATENTANWALTE PARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO0102551 |
| DESCRIPTION | WO2006094704 |
| DESCRIPTION | WO2014191047 |
| DESCRIPTION | WO2015020158 |
| DESCRIPTION | WO2016201152 |
| INTERNATIONAL-SEARCH-REPORT | WO0127158 |
| INTERNATIONAL-SEARCH-REPORT | WO2016201152 |
| OPPOSITION | WO2015020158 |
| OPPOSITION | WO2016201152 |
| OPPOSITION | WO2019110630 |
| OPPOSITION | WO2022268745 |
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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Feb 21, 2023
Jan 12, 2023
Decision to grant a European patent
Search/Exam
Dec 2, 2022
(Electronic) Receipt
Search/Exam
Dec 2, 2022
Filing of the translations of the claims
Search/Exam
Dec 2, 2022
French translation of claims
Search/Exam
Dec 2, 2022
German translation of the claims
Search/Exam
Dec 2, 2022
Letter accompanying subsequently filed items
Search/Exam
Aug 3, 2022
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Intention to grant (signatures)
Search/Exam
Aug 3, 2022
Text intended for grant (clean copy)
Search/Exam
Aug 3, 2022
Text intended for grant (sequence listing)
Search/Exam
Aug 3, 2022
Jun 1, 2022
(Electronic) Receipt
Search/Exam
Jun 1, 2022
Amended claims with annotations
Search/Exam
Jun 1, 2022
Amended description with annotations
Search/Exam
Jun 1, 2022
Claims
Search/Exam
Jun 1, 2022
Description
Search/Exam
Jun 1, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 1, 2022
Feb 22, 2022
Annex to the communication
Search/Exam
Feb 22, 2022
Communication from the Examining Division
Search/Exam
Jan 13, 2022
(Electronic) Receipt
Search/Exam
Jan 13, 2022
Amended claims with annotations
Search/Exam
Jan 13, 2022
Claims
Search/Exam
Jan 13, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 13, 2022
Sep 27, 2021
Annex to the communication
Search/Exam
Sep 27, 2021
Communication from the Examining Division
Search/Exam
Aug 12, 2021
(Electronic) Receipt
Search/Exam
Aug 12, 2021
Amended claims with annotations
Search/Exam
Aug 12, 2021
Claims
Search/Exam
Aug 12, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 12, 2021
Apr 20, 2021
Annex to the communication
Search/Exam
Apr 20, 2021
Communication from the Examining Division
Search/Exam
Apr 14, 2021
Examination started
Search/Exam
Jan 14, 2021
(Electronic) Receipt
Search/Exam
Jan 14, 2021
Jan 14, 2021
Amended claims with annotations
Search/Exam
Jan 14, 2021
Amendments received before examination
Search/Exam
Jan 14, 2021
Letter accompanying subsequently filed items
Search/Exam
Sep 16, 2020
Jul 14, 2020
Jul 10, 2020
Communication to designated inventor
Search/Exam
Jul 10, 2020
Communication to designated inventor
Search/Exam
Jul 10, 2020
Communication to designated inventor
Search/Exam
Jul 7, 2020
Priority search results copy provided by EPO
Search/Exam
Jun 18, 2020
(Electronic) Receipt
Search/Exam
Jun 18, 2020
Request for entry into the European phase
Search/Exam
Jun 17, 2020
Jun 17, 2020
Apr 17, 2020
Information on entry into European phase
Search/Exam
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Written opinion
PCT2
Sep 30, 2019
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Sep 2, 2019
Notification of election of EPO
Search/Exam
Aug 13, 2019
Aug 7, 2019
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Annex
PCT2
Aug 7, 2019
Annex
PCT2
Aug 7, 2019
PCT demand form
PCT2
Aug 7, 2019
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Converted Sequence Listing
Search/Exam
Jun 13, 2019
Copy of the international search report
Search/Exam
Jun 13, 2019
Published international application - A1
Search/Exam
Feb 11, 2019
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(Electronic) Receipt
PCTRO
Jan 28, 2019
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Dec 5, 2018
(Electronic) Receipt
PCTRO
Dec 5, 2018
Abstract
PCTRO
Dec 5, 2018
Claims
PCTRO
Dec 5, 2018
Description
PCTRO
Dec 5, 2018
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Drawings
PCTRO
Dec 5, 2018
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