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The patent EP3536763 was granted to Borsig on Mar 8, 2023. The application was filed on Mar 8, 2019 under application number EP19000123A. 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 |
|---|---|---|---|
| ALFA LAVAL CORPORATE | Dec 6, 2023 | GRUNECKER PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102014018261 |
| EXAMINATION | US2009203951 |
| EXAMINATION | US2013047509 |
| OPPOSITION | CN102492456 |
| OPPOSITION | CN106931823 |
| OPPOSITION | CN203240947U |
| OPPOSITION | CN206531413U |
| OPPOSITION | DE102006055973 |
| OPPOSITION | EP0272378 |
| OPPOSITION | US2009030254 |
| OPPOSITION | US2009203951 |
| SEARCH | DE102006055973 |
| SEARCH | DE19901656 |
| SEARCH | DE2554666 |
| SEARCH | EP0561220 |
| SEARCH | EP3415587 |
| SEARCH | US2009030254 |
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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Dec 9, 2025
Dec 9, 2025
Dec 9, 2025
Dec 3, 2025
(Electronic) Receipt
Appeal
Dec 3, 2025
Authorisation
Appeal
Dec 3, 2025
Dec 3, 2025
Dec 3, 2025
Dec 3, 2025
Oct 1, 2025
Sep 26, 2025
(Electronic) Receipt
Appeal
Sep 26, 2025
Sep 26, 2025
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Sep 26, 2025
Sep 26, 2025
Jul 30, 2025
Jul 30, 2025
Jul 24, 2025
(Electronic) Receipt
Appeal
Jul 24, 2025
Notice of appeal
Appeal
May 26, 2025
May 26, 2025
May 26, 2025
May 26, 2025
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May 26, 2025
Means of redress
OPPO
May 26, 2025
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Mar 21, 2023
Feb 24, 2023
Refund of fees
Search/Exam
Feb 9, 2023
Decision to grant a European patent
Search/Exam
Jan 23, 2023
English translation of the claims
Search/Exam
Jan 23, 2023
Filing of the translations of the claims
Search/Exam
Jan 23, 2023
French translation of claims
Search/Exam
Nov 29, 2022
Nov 29, 2022
Nov 29, 2022
Nov 29, 2022
Intention to grant (signatures)
Search/Exam
Nov 29, 2022
Text intended for grant (clean copy)
Search/Exam
Nov 29, 2022
Nov 11, 2022
Letter which had not been notified
Search/Exam
Oct 31, 2022
Oct 31, 2022
Oct 31, 2022
May 13, 2022
Amended claims with annotations
Search/Exam
May 13, 2022
Amended description with annotations
Search/Exam
May 13, 2022
Claims
Search/Exam
May 13, 2022
Description
Search/Exam
May 13, 2022
Mar 18, 2022
Refund of fees
Search/Exam
Feb 7, 2022
Feb 1, 2022
Observations by third parties
Search/Exam
Jan 12, 2022
Annex to the communication
Search/Exam
Jan 12, 2022
Communication from the Examining Division
Search/Exam
Oct 15, 2021
Amended claims with annotations
Search/Exam
Oct 15, 2021
Amended description with annotations
Search/Exam
Oct 15, 2021
Claims
Search/Exam
Oct 15, 2021
Description
Search/Exam
Oct 15, 2021
Jun 14, 2021
Annex to the communication
Search/Exam
Jun 14, 2021
Communication from the Examining Division
Search/Exam
Jun 3, 2021
Examination started
Search/Exam
Apr 7, 2021
Apr 7, 2021
Mar 26, 2021
Observations by third parties
Search/Exam
Mar 25, 2020
Priority search results
Search/Exam
Mar 25, 2020
Mar 20, 2020
Mar 9, 2020
Mar 9, 2020
Amended claims with annotations
Search/Exam
Mar 9, 2020
Mar 9, 2020
Amended description with annotations
Search/Exam
Mar 9, 2020
Amendments received before examination
Search/Exam
Mar 5, 2020
Letter concerning fees and payments
Search/Exam
Sep 16, 2019
Aug 14, 2019
Aug 14, 2019
European search opinion
Search/Exam
Aug 14, 2019
European search report
Search/Exam
Aug 14, 2019
Information on Search Strategy
Search/Exam
Aug 14, 2019
Notification of forthcoming publication
Search/Exam
Jul 25, 2019
Search started
Search/Exam
May 6, 2019
Communication to designated inventor
Search/Exam
May 6, 2019
Communication to designated inventor
Search/Exam
Apr 25, 2019
Letter concerning the priority
Search/Exam
Apr 25, 2019
Apr 25, 2019
Priority document
Search/Exam
Mar 8, 2019
Abstract
Search/Exam
Mar 8, 2019
Claims
Search/Exam
Mar 8, 2019
Description
Search/Exam
Mar 8, 2019
Designation of inventor
Search/Exam
Mar 8, 2019
Drawings
Search/Exam
Mar 8, 2019
Matter concerning the application
Search/Exam
Mar 8, 2019
Payment of fees and costs
Search/Exam
Mar 8, 2019
Request for grant of a European patent
Search/Exam