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The patent EP3621446 was granted to Puratos on Oct 16, 2024. The application was filed on May 9, 2018 under application number EP18726082A. 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 |
|---|---|---|---|
| BOETERS & LIECK | Jul 15, 2025 | FORSTMEYER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE10329226 |
| INTERNATIONAL-SEARCH-REPORT | DE20017502U |
| INTERNATIONAL-SEARCH-REPORT | GB2452972 |
| INTERNATIONAL-SEARCH-REPORT | KR20060112878 |
| INTERNATIONAL-SEARCH-REPORT | KR20110029611 |
| INTERNATIONAL-SEARCH-REPORT | US2006222753 |
| INTERNATIONAL-SEARCH-REPORT | US2007292577 |
| INTERNATIONAL-SEARCH-REPORT | US2011059224 |
| INTERNATIONAL-SEARCH-REPORT | WO2006000065 |
| INTERNATIONAL-SEARCH-REPORT | WO2013029193 |
| INTERNATIONAL-SEARCH-REPORT | WO2013091121 |
| OPPOSITION | CN106509292 |
| OPPOSITION | KR20130035293 |
| OPPOSITION | KR20150112431 |
| OTHER | DE10329226 |
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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Oct 29, 2024
Sep 19, 2024
Decision to grant a European patent
Search/Exam
Sep 13, 2024
Refund of fees
Search/Exam
Sep 5, 2024
(Electronic) Receipt
Search/Exam
Sep 5, 2024
Filing of the translations of the claims
Search/Exam
Sep 5, 2024
French translation of claims
Search/Exam
Sep 5, 2024
German translation of the claims
Search/Exam
Sep 5, 2024
Letter accompanying subsequently filed items
Search/Exam
May 6, 2024
May 6, 2024
May 6, 2024
May 6, 2024
Intention to grant (signatures)
Search/Exam
May 6, 2024
Text intended for grant (clean copy)
Search/Exam
May 6, 2024
Feb 16, 2024
(Electronic) Receipt
Search/Exam
Feb 16, 2024
Amended claims with annotations
Search/Exam
Feb 16, 2024
Amended description with annotations
Search/Exam
Feb 16, 2024
Claims
Search/Exam
Feb 16, 2024
Description
Search/Exam
Feb 16, 2024
Letter accompanying subsequently filed items
Search/Exam
Feb 16, 2024
Feb 14, 2024
Annex to the communication
Search/Exam
Feb 14, 2024
Communication from the Examining Division
Search/Exam
Feb 9, 2024
Feb 7, 2024
Non-patent literature filed by a third party
Search/Exam
Feb 7, 2024
Non-patent literature filed by a third party
Search/Exam
Feb 7, 2024
Observations by third parties
Search/Exam
Feb 1, 2024
(Electronic) Receipt
Search/Exam
Feb 1, 2024
Filing of the translations of the claims
Search/Exam
Feb 1, 2024
French translation of claims
Search/Exam
Feb 1, 2024
German translation of the claims
Search/Exam
Feb 1, 2024
Letter accompanying subsequently filed items
Search/Exam
Oct 17, 2023
Oct 17, 2023
Oct 17, 2023
Oct 17, 2023
Intention to grant (signatures)
Search/Exam
Oct 17, 2023
Text intended for grant (clean copy)
Search/Exam
Oct 17, 2023
Jan 12, 2021
(Electronic) Receipt
Search/Exam
Jan 12, 2021
Amended description with annotations
Search/Exam
Jan 12, 2021
Description
Search/Exam
Jan 12, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 12, 2021
Sep 21, 2020
Annex to the communication
Search/Exam
Sep 21, 2020
Communication from the Examining Division
Search/Exam
Sep 14, 2020
Examination started
Search/Exam
Apr 27, 2020
(Electronic) Receipt
Search/Exam
Apr 27, 2020
Letter accompanying subsequently filed items
Search/Exam
Apr 27, 2020
Reply to Written Opinion prepared by the EPO
Search/Exam
Feb 19, 2020
Dec 18, 2019
Dec 16, 2019
Communication to designated inventor
Search/Exam
Dec 16, 2019
Communication to designated inventor
Search/Exam
Dec 11, 2019
Priority search results copy provided by EPO
Search/Exam
Dec 3, 2019
(Electronic) Receipt
Search/Exam
Dec 3, 2019
Request for entry into the European phase
Search/Exam
Nov 19, 2019
Nov 19, 2019
Sep 20, 2019
Information on entry into European phase
Search/Exam
Jul 10, 2019
Jul 10, 2019
Jul 10, 2019
Jul 10, 2019
Jul 10, 2019
May 15, 2019
May 15, 2019
Annex
PCT2
May 15, 2019
May 15, 2019
May 15, 2019
Apr 3, 2019
Written opinion
PCT2
Apr 3, 2019
Apr 3, 2019
Feb 27, 2019
Notification of election of EPO
Search/Exam
Feb 5, 2019
Jan 29, 2019
Jan 29, 2019
PCT demand form
PCT2
Jan 29, 2019
Jan 29, 2019
Dec 6, 2018
Nov 15, 2018
Copy of the international search report
Search/Exam
Nov 15, 2018
Published international application - A1
Search/Exam
Jul 6, 2018
Jul 6, 2018
Jul 6, 2018
Jun 27, 2018
May 24, 2018
May 9, 2018
(Electronic) Receipt
PCTRO
May 9, 2018
(Electronic) Receipt
PCTRO
May 9, 2018
Abstract
PCTRO
May 9, 2018
Claims
PCTRO
May 9, 2018
Description
PCTRO
May 9, 2018
May 9, 2018