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The patent EP3599857 was granted to Bayer on Aug 23, 2023. The application was filed on Mar 22, 2018 under application number EP18711372A. 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 |
|---|---|---|---|
| BASF | May 22, 2024 | BASF ASSOCIATION | ADMISSIBLE |
| BASF | May 22, 2024 | MEISSNER BOLTE PARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN101838227 |
| DESCRIPTION | EP0048436 |
| DESCRIPTION | EP0081893 |
| DESCRIPTION | EP0086750 |
| DESCRIPTION | EP0094349 |
| DESCRIPTION | EP0131624 |
| DESCRIPTION | EP0142924 |
| DESCRIPTION | EP0174562 |
| DESCRIPTION | EP0191736 |
| DESCRIPTION | EP0193259 |
| DESCRIPTION | EP0221044 |
| DESCRIPTION | EP0242236 |
| DESCRIPTION | EP0242246 |
| DESCRIPTION | EP0257993 |
| DESCRIPTION | EP0268554 |
| DESCRIPTION | EP0269806 |
| DESCRIPTION | EP0305398 |
| DESCRIPTION | EP0309862 |
| DESCRIPTION | EP0333131 |
| DESCRIPTION | EP0336151 |
| DESCRIPTION | EP0346620 |
| DESCRIPTION | EP0365484 |
| DESCRIPTION | EP0464461 |
| DESCRIPTION | EP0476555 |
| DESCRIPTION | EP0492366 |
| DESCRIPTION | EP0502014 |
| DESCRIPTION | EP0582198 |
| DESCRIPTION | JPS6087254 |
| DESCRIPTION | US4400196 |
| DESCRIPTION | US5013659 |
| DESCRIPTION | WO0234048 |
| DESCRIPTION | WO2004084631 |
| DESCRIPTION | WO2005015994 |
| DESCRIPTION | WO2005016001 |
| DESCRIPTION | WO2005112630 |
| DESCRIPTION | WO2007023719 |
| DESCRIPTION | WO2007023764 |
| DESCRIPTION | WO2008131860 |
| DESCRIPTION | WO2008131861 |
| DESCRIPTION | WO2012148689 |
| DESCRIPTION | WO2015127259 |
| DESCRIPTION | WO2017009054 |
| DESCRIPTION | WO2017009056 |
| DESCRIPTION | WO2017009090 |
| DESCRIPTION | WO2017009092 |
| DESCRIPTION | WO2017009095 |
| DESCRIPTION | WO2017009124 |
| DESCRIPTION | WO2017009134 |
| DESCRIPTION | WO2017009137 |
| DESCRIPTION | WO2017009138 |
| DESCRIPTION | WO2017009139 |
| DESCRIPTION | WO2017009140 |
| DESCRIPTION | WO2017009142 |
| DESCRIPTION | WO2017009143 |
| DESCRIPTION | WO2017009144 |
| DESCRIPTION | WO9107874 |
| DESCRIPTION | WO9108202 |
| DESCRIPTION | WO9113972 |
| DESCRIPTION | WO9119806 |
| DESCRIPTION | WO9200377 |
| DESCRIPTION | WO9211376 |
| DESCRIPTION | WO9214827 |
| DESCRIPTION | WO9507897 |
| DESCRIPTION | WO9745016 |
| DESCRIPTION | WO9813361 |
| DESCRIPTION | WO9827049 |
| DESCRIPTION | WO9838856 |
| DESCRIPTION | WO9900020 |
| DESCRIPTION | WO9916744 |
| EXAMINATION | US4405357 |
| EXAMINATION | WO2015127259 |
| EXAMINATION | WO2017009090 |
| EXAMINATION | WO2017025418 |
| INTERNATIONAL-SEARCH-REPORT | WO2017009148 |
| INTERNATIONAL-SEARCH-REPORT | WO2017025418 |
| OPPOSITION | US4405357 |
| OPPOSITION | WO2012148689 |
| OPPOSITION | WO2015127259 |
| OPPOSITION | WO2017009142 |
| OPPOSITION | WO2017009148 |
| OPPOSITION | WO2017025418 |
| OPPOSITION | WO2018041762 |
| OPPOSITION | WO2019166401 |
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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Jul 27, 2023
Decision to grant a European patent
Search/Exam
Jul 10, 2023
(Electronic) Receipt
Search/Exam
Jul 10, 2023
English translation of the claims
Search/Exam
Jul 10, 2023
French translation of claims
Search/Exam
Jul 10, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 16, 2023
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Intention to grant (signatures)
Search/Exam
Mar 16, 2023
Text intended for grant (clean copy)
Search/Exam
Mar 16, 2023
Mar 30, 2022
Document concerning representation
Search/Exam
Jan 13, 2022
(Electronic) Receipt
Search/Exam
Jan 13, 2022
Amended claims with annotations
Search/Exam
Jan 13, 2022
Amended description with annotations
Search/Exam
Jan 13, 2022
Claims
Search/Exam
Jan 13, 2022
Description
Search/Exam
Jan 13, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 13, 2022
Sep 24, 2021
Annex to the communication
Search/Exam
Sep 24, 2021
Communication from the Examining Division
Search/Exam
May 18, 2021
(Electronic) Receipt
Search/Exam
May 18, 2021
Amended claims with annotations
Search/Exam
May 18, 2021
Claims
Search/Exam
May 18, 2021
Letter accompanying subsequently filed items
Search/Exam
May 18, 2021
May 3, 2021
Apr 28, 2021
(Electronic) Receipt
Search/Exam
Apr 28, 2021
Jan 15, 2021
Annex to the communication
Search/Exam
Jan 15, 2021
Communication from the Examining Division
Search/Exam
Jan 12, 2021
Examination started
Search/Exam
May 5, 2020
(Electronic) Receipt
Search/Exam
May 5, 2020
Letter accompanying subsequently filed items
Search/Exam
May 5, 2020
Reply to Written Opinion prepared by the EPO
Search/Exam
Jan 9, 2020
Nov 4, 2019
Oct 30, 2019
Communication to designated inventor
Search/Exam
Oct 30, 2019
Communication to designated inventor
Search/Exam
Oct 30, 2019
Communication to designated inventor
Search/Exam
Oct 28, 2019
Priority search results copy provided by EPO
Search/Exam
Oct 8, 2019
Sep 24, 2019
Citation filed by a third party
Search/Exam
Sep 24, 2019
Citation filed by a third party
Search/Exam
Sep 24, 2019
Citation filed by a third party
Search/Exam
Sep 24, 2019
Observations by third parties
Search/Exam
Sep 24, 2019
Observations by third parties
Search/Exam
Sep 4, 2019
(Electronic) Receipt
Search/Exam
Sep 4, 2019
Request for entry into the European phase
Search/Exam
Jul 31, 2019
Information on entry into European phase
Search/Exam
Oct 16, 2018
Sep 27, 2018
Copy of the international search report
Search/Exam
Sep 27, 2018
Copy of the international search report
Search/Exam
Sep 27, 2018
Published international application - A1
Search/Exam
May 8, 2018
May 8, 2018
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Mar 29, 2018
Mar 22, 2018
(Electronic) Receipt
PCTRO
Mar 22, 2018
Abstract
PCTRO
Mar 22, 2018
Claims
PCTRO
Mar 22, 2018
Description
PCTRO
Mar 22, 2018
Mar 22, 2018
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