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The patent EP3503715 was granted to Delaval Holding on May 4, 2022. The application was filed on Aug 24, 2017 under application number EP17761612A. 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 |
|---|---|---|---|
| OCTROOIBUREAU VAN DER LELY | Jan 30, 2023 | OCTROOIBUREAU VAN DER LELY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2013187821 |
| EXAMINATION | US2014000520 |
| INTERNATIONAL-SEARCH-REPORT | US2015071491 |
| INTERNATIONAL-SEARCH-REPORT | US6427625 |
| INTERNATIONAL-SEARCH-REPORT | WO2010046669 |
| INTERNATIONAL-SEARCH-REPORT | WO2012134379 |
| INTERNATIONAL-SEARCH-REPORT | WO2013187821 |
| OPPOSITION | US2014000520 |
| OPPOSITION | US6427625 |
| OPPOSITION | WO2013187821 |
| OPPOSITION | WO2014055004 |
| OPPOSITION | WO2014098739 |
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 27, 2025
Oct 20, 2025
(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
Aug 1, 2025
Notice of appeal
Appeal
Aug 1, 2025
Notice of appeal
Appeal
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Decision to grant a European patent
Search/Exam
Mar 23, 2022
(Electronic) Receipt
Search/Exam
Mar 23, 2022
French translation of claims
Search/Exam
Mar 23, 2022
German translation of the claims
Search/Exam
Mar 23, 2022
Letter accompanying subsequently filed items
Search/Exam
Dec 3, 2021
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Intention to grant (signatures)
Search/Exam
Dec 3, 2021
Text intended for grant (clean copy)
Search/Exam
Dec 3, 2021
Mar 31, 2021
(Electronic) Receipt
Search/Exam
Mar 31, 2021
Amended claims with annotations
Search/Exam
Mar 31, 2021
Amended description with annotations
Search/Exam
Mar 31, 2021
Claims
Search/Exam
Mar 31, 2021
Description
Search/Exam
Mar 31, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 31, 2021
Dec 2, 2020
Annex to the communication
Search/Exam
Dec 2, 2020
Communication from the Examining Division
Search/Exam
Nov 25, 2020
Examination started
Search/Exam
Oct 2, 2019
(Electronic) Receipt
Search/Exam
Oct 2, 2019
Oct 2, 2019
Amended claims with annotations
Search/Exam
Oct 2, 2019
Amendments received before examination
Search/Exam
Oct 2, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 5, 2019
Apr 2, 2019
Mar 29, 2019
Communication to designated inventor
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Mar 29, 2019
Communication to designated inventor
Search/Exam
Mar 29, 2019
Communication to designated inventor
Search/Exam
Mar 13, 2019
Feb 22, 2019
(Electronic) Receipt
Search/Exam
Feb 22, 2019
Priority search results
Search/Exam
Feb 22, 2019
Request for entry into the European phase
Search/Exam
Jan 4, 2019
Information on entry into European phase
Search/Exam
Mar 22, 2018
Mar 1, 2018
Copy of the international search report
Search/Exam
Mar 1, 2018
Published international application - A1
Search/Exam
Nov 22, 2017
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