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The patent EP3843550 was granted to SPX Flow Technology Danmark on Feb 8, 2023. The application was filed on Aug 30, 2019 under application number EP19762365A. 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 |
|---|---|---|---|
| NUTRICIA | Nov 7, 2023 | NEDERLANDSCH OCTROOIBUREAU | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2010085957 |
| DESCRIPTION | WO2016012025 |
| DESCRIPTION | WO2016012026 |
| DESCRIPTION | WO2018115131 |
| DESCRIPTION | WO9616556 |
| INTERNATIONAL-SEARCH-REPORT | DE102010025664 |
| INTERNATIONAL-SEARCH-REPORT | US2014302219 |
| INTERNATIONAL-SEARCH-REPORT | US2018027864 |
| INTERNATIONAL-SEARCH-REPORT | WO2017109466 |
| OPPOSITION | US2018027864 |
| OPPOSITION | WO2010085957 |
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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Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Means of redress
OPPO
Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Oct 16, 2025
Oct 6, 2025
Oct 6, 2025
Aug 21, 2025
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Aug 14, 2025
Aug 14, 2025
Aug 14, 2025
Aug 14, 2025
Aug 14, 2025
Aug 14, 2025
Aug 14, 2025
Mar 25, 2025
Mar 25, 2025
Mar 25, 2025
May 6, 2024
May 6, 2024
May 6, 2024
May 6, 2024
Apr 26, 2024
Apr 26, 2024
Authorisation
OPPO
Apr 26, 2024
Apr 17, 2024
Apr 17, 2024
Apr 17, 2024
Apr 9, 2024
Apr 9, 2024
Apr 9, 2024
Apr 3, 2024
Mar 22, 2024
Mar 22, 2024
Mar 22, 2024
Mar 21, 2024
Mar 21, 2024
Authorisation
OPPO
Mar 21, 2024
Mar 21, 2024
Nov 22, 2023
Nov 22, 2023
Nov 14, 2023
Nov 7, 2023
Nov 7, 2023
Nov 7, 2023
Nov 7, 2023
Nov 7, 2023
Nov 7, 2023
Nov 7, 2023
Nov 7, 2023
Nov 7, 2023
Nov 7, 2023
Nov 7, 2023
Nov 7, 2023
Feb 21, 2023
Jan 12, 2023
Decision to grant a European patent
Search/Exam
Dec 23, 2022
(Electronic) Receipt
Search/Exam
Dec 23, 2022
Filing of the translations of the claims
Search/Exam
Dec 23, 2022
French translation of claims
Search/Exam
Dec 23, 2022
German translation of the claims
Search/Exam
Dec 23, 2022
Letter accompanying subsequently filed items
Search/Exam
Sep 6, 2022
Sep 6, 2022
Sep 6, 2022
Intention to grant (signatures)
Search/Exam
Sep 6, 2022
Text intended for grant (clean copy)
Search/Exam
Sep 6, 2022
Jul 20, 2022
(Electronic) Receipt
Search/Exam
Jul 20, 2022
Amended claims with annotations
Search/Exam
Jul 20, 2022
Claims
Search/Exam
Jul 20, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 20, 2022
Apr 8, 2022
Apr 8, 2022
Apr 8, 2022
Intention to grant (signatures)
Search/Exam
Apr 8, 2022
Text intended for grant (clean copy)
Search/Exam
Apr 8, 2022
Mar 8, 2022
Examination started
Search/Exam
Jun 9, 2021
Apr 12, 2021
Mar 29, 2021
(Electronic) Receipt
Search/Exam
Mar 29, 2021
Request for entry into the European phase
Search/Exam
Mar 8, 2021
Mar 8, 2021
Feb 11, 2021
Feb 11, 2021
Feb 11, 2021
Feb 11, 2021
Feb 11, 2021
Feb 11, 2021
Feb 11, 2021
Jan 15, 2021
Information on entry into European phase
Search/Exam
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Oct 16, 2020
Written opinion
PCT2
Oct 16, 2020
Oct 16, 2020
Aug 14, 2020
Aug 14, 2020
Annex
PCT2
Aug 14, 2020
Aug 14, 2020
Aug 14, 2020
Aug 14, 2020
Jul 27, 2020
Jul 23, 2020
Notification of election of EPO
Search/Exam
Jul 10, 2020
Jul 8, 2020
Jul 6, 2020
Jun 29, 2020
Jun 29, 2020
PCT demand form
PCT2
Jun 29, 2020
Mar 26, 2020
Mar 5, 2020
Copy of the international search report
Search/Exam
Mar 5, 2020
Published international application - A1
Search/Exam
Sep 13, 2019
Aug 30, 2019
(Electronic) Receipt
PCTRO
Aug 30, 2019
Abstract
PCTRO
Aug 30, 2019
Claims
PCTRO
Aug 30, 2019
Description
PCTRO
Aug 30, 2019
Aug 30, 2019