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The patent EP2640184 was granted to Delaval Holding on Jul 1, 2020. The application was filed on Nov 11, 2011 under application number EP11794872A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 | Feb 19, 2018 | - | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1559314 |
| DESCRIPTION | WO02074070 |
| INTERNATIONAL-SEARCH-REPORT | EP0653153 |
| INTERNATIONAL-SEARCH-REPORT | EP1046336 |
| INTERNATIONAL-SEARCH-REPORT | EP1559314 |
| INTERNATIONAL-SEARCH-REPORT | US3915866 |
| INTERNATIONAL-SEARCH-REPORT | US5769025 |
| INTERNATIONAL-SEARCH-REPORT | WO02074070 |
| OPPOSITION | DE20023879U |
| OPPOSITION | EP0653153 |
| OPPOSITION | EP1559314 |
| OPPOSITION | NL1016817 |
| OPPOSITION | US2009095689 |
| OPPOSITION | US3618781 |
| OPPOSITION | US3915866 |
| OPPOSITION | US5769025 |
| OPPOSITION | WO02074070 |
| SUPPLEMENTARY-INTERNATIONAL-SEARCH-REPORT | EP1559314 |
| SUPPLEMENTARY-INTERNATIONAL-SEARCH-REPORT | RU2015665 |
| SUPPLEMENTARY-INTERNATIONAL-SEARCH-REPORT | US3915866 |
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.
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OPPO
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Description
OPPO
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Decision to grant a European patent
Search/Exam
Apr 5, 2017
(Electronic) Receipt
Search/Exam
Apr 5, 2017
French translation of claims
Search/Exam
Apr 5, 2017
German translation of the claims
Search/Exam
Apr 5, 2017
Letter accompanying subsequently filed items
Search/Exam
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(Electronic) Receipt
Search/Exam
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Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Dec 13, 2016
Text intended for grant (clean copy)
Search/Exam
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Examination started
Search/Exam
Sep 24, 2013
(Electronic) Receipt
Search/Exam
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Amendments received before examination
Search/Exam
Sep 24, 2013
Letter accompanying subsequently filed items
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Jun 7, 2013
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(Electronic) Receipt
Search/Exam
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Priority search results
Search/Exam
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Priority search results
Search/Exam
May 17, 2013
Request for entry into the European phase
Search/Exam
Apr 2, 2013
Information on entry into European phase
Search/Exam
Dec 13, 2012
Supplementary International Search Report
Search/Exam
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Copy of the international search report
Search/Exam
May 24, 2012
Published international application - A1
Search/Exam
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Nov 11, 2011
Abstract
PCTISA
Nov 11, 2011
Claims
PCTISA
Nov 11, 2011
Description
PCTISA
Nov 11, 2011
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PCTISA