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The patent EP2874624 was granted to Bayer on Oct 2, 2019. The application was filed on Jul 16, 2013 under application number EP13819728A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| OMNIPHARM DEVELOPMENTS | May 21, 2020 | CARPMAELS & RANSFORD | ADMISSIBLE |
| EUROVET ANIMAL HEALTH | May 20, 2020 | ALGEMEEN OCTROOI EN MERKENBUREAU | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN1517090 |
| INTERNATIONAL-SEARCH-REPORT | US4446144 |
| OPPOSITION | CA1237672 |
| OPPOSITION | CN101822637 |
| OPPOSITION | CN1517090 |
| OPPOSITION | EP0941095 |
| OPPOSITION | GB2087236 |
| OPPOSITION | US2004022815 |
| OPPOSITION | US2011223208 |
| OPPOSITION | US4446144 |
| OPPOSITION | US4594246 |
| OPPOSITION | US6911441 |
| OPPOSITION | WO2004014339 |
| OPPOSITION | WO2011128783 |
| OTHER | CA1237672 |
| OTHER | CN101822637 |
| OTHER | CN1517090 |
| SEARCH | GB2087236 |
| SEARCH | US4594246 |
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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(Electronic) Receipt
Search/Exam
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Letter accompanying subsequently filed items
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Jul 25, 2019
Decision to grant a European patent
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Jun 17, 2019
Change to the inventor details
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Jun 7, 2019
(Electronic) Receipt
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Jun 7, 2019
French translation of claims
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German translation of the claims
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Observations by third parties
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Non-patent literature filed by a third party
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Advice of delivery
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(Electronic) Receipt
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Nov 26, 2018
Amended claims with annotations
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Amended description with annotations
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Claims
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Nov 26, 2018
Description
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Nov 26, 2018
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Oct 19, 2018
Letter accompanying subsequently filed items
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Oct 19, 2018
Non-patent literature filed by a third party
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Oct 19, 2018
Observations by third parties
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Oct 19, 2018
Patent document filed by a Third party
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Oct 17, 2018
Annex to the communication
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Oct 17, 2018
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(Electronic) Receipt
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Oct 4, 2018
Amended claims with annotations
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Oct 4, 2018
Claims
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Oct 4, 2018
Claims
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Letter accompanying subsequently filed items
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Oct 4, 2018
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Annex to the communication
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Non-patent literature filed by a third party
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Observations by third parties
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Patent document filed by a Third party
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Jun 7, 2018
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(Electronic) Receipt
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Jun 4, 2018
Authorisation
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Jun 4, 2018
Apr 10, 2018
Advice of delivery
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Apr 5, 2018
Acknowledgement of a document
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Apr 5, 2018
Annex to the communication
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Apr 5, 2018
Summons to attend oral proceedings
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Mar 23, 2018
Preparation for oral proceedings
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(Electronic) Receipt
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(Electronic) Receipt
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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Patent document filed by a Third party
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Dec 20, 2017
(Electronic) Receipt
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Dec 20, 2017
Amended claims with annotations
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Dec 20, 2017
Claims
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Dec 20, 2017
Letter accompanying subsequently filed items
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Communication from the Examining Division
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Non-patent literature filed by a third party
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Observations by third parties
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Patent document filed by a Third party
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Patent document filed by a Third party
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Jul 28, 2017
(Electronic) Receipt
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Jul 28, 2017
Letter accompanying subsequently filed items
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Jul 28, 2017
Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Observations by third parties
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Jun 6, 2017
(Electronic) Receipt
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Jun 6, 2017
Amended claims with annotations
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Jun 6, 2017
Claims
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Jun 6, 2017
Letter accompanying subsequently filed items
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Annex to the communication
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Apr 6, 2017
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(Electronic) Receipt
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Jan 25, 2017
Amended claims with annotations
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Jan 25, 2017
Claims
Search/Exam
Jan 25, 2017
Letter accompanying subsequently filed items
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Jan 25, 2017
Sep 27, 2016
Annex to the communication
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Sep 27, 2016
Communication from the Examining Division
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Examination started
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Aug 5, 2016
(Electronic) Receipt
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Aug 5, 2016
Letter accompanying subsequently filed items
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Aug 5, 2016
Priority search results
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Aug 5, 2016
Priority search results
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Priority search results
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Aug 5, 2016
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(Electronic) Receipt
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May 17, 2016
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Amended claims with annotations
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May 17, 2016
Amendments received before examination
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May 17, 2016
Letter accompanying subsequently filed items
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Mar 16, 2016
Submission concerning representation
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Nov 17, 2015
Oct 30, 2015
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European search opinion
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Oct 30, 2015
Supplementary European search report
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Oct 20, 2015
Search started
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Apr 30, 2015
Mar 16, 2015
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Feb 27, 2015
Citation filed by a third party
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Feb 27, 2015
Non-patent literature filed by a third party
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Non-patent literature filed by a third party
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Feb 27, 2015
Observations by third parties
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Feb 24, 2015
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Feb 20, 2015
Communication to designated inventor
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Feb 20, 2015
Communication to designated inventor
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Jan 28, 2015
Jan 28, 2015
Dec 5, 2014
(Electronic) Receipt
Search/Exam
Dec 5, 2014
Dec 5, 2014
Matter concerning the application
Search/Exam
Dec 5, 2014
Request for entry into the European phase
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Nov 28, 2014
Information on entry into European phase
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Mar 10, 2014
Notification of election of EPO
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Feb 11, 2014
Feb 11, 2014
Feb 11, 2014
Jan 23, 2014
Copy of the international search report
Search/Exam
Jan 23, 2014
Jan 23, 2014
Published international application - A1
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