The weekly litigation news digest is live. Subscribe now
The patent EP3259593 was granted to Idexx Laboratories on Oct 5, 2022. The application was filed on Feb 19, 2016 under application number EP16753142A. 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 |
|---|---|---|---|
| WITTE | Jul 5, 2023 | WITTE | ADMISSIBLE |
| ZOETIS SERVICES | Jul 5, 2023 | DORRIES | ADMISSIBLE |
| ZOETIS SERVICES | Jul 5, 2023 | DORRIES, HANS ULRICH , DF-MP DORRIES FRANK-MOLNIA & POHLMAN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2004214252 |
| INTERNATIONAL-SEARCH-REPORT | US2013280740 |
| INTERNATIONAL-SEARCH-REPORT | US6455288 |
| INTERNATIONAL-SEARCH-REPORT | US6706742 |
| OPPOSITION | US2006046273 |
| OPPOSITION | US2010035274 |
| OPPOSITION | US2013280740 |
| OPPOSITION | US3875011 |
| OPPOSITION | US6455288 |
| OPPOSITION | US8481690 |
| OPPOSITION | WO0214873 |
| OPPOSITION | WO2005058864 |
| OPPOSITION | WO2005103697 |
| OPPOSITION | WO2006078813 |
| OPPOSITION | WO2008154457 |
| OPPOSITION | WO2010017089 |
| OPPOSITION | WO2010048423 |
| OPPOSITION | WO2014113717 |
| OPPOSITION | WO2014126861 |
| OPPOSITION | WO2015035155 |
| OPPOSITION | WO2015094852 |
| OPPOSITION | WO2016134251 |
| SEARCH | US2013280740 |
| SEARCH | US6455288 |
| SEARCH | WO2015035155 |
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
Get instant alerts for new documents
Oct 22, 2025
Oct 22, 2025
Oct 17, 2025
(Electronic) Receipt
Appeal
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 17, 2025
Oct 6, 2025
Refund of fees
Search/Exam
Oct 1, 2025
Oct 1, 2025
Sep 22, 2025
(Electronic) Receipt
Appeal
Sep 22, 2025
Sep 22, 2025
Withdrawal of an appeal
Appeal
Aug 21, 2025
Aug 21, 2025
Aug 21, 2025
Aug 20, 2025
Aug 20, 2025
Aug 20, 2025
Aug 18, 2025
(Electronic) Receipt
Appeal
Aug 18, 2025
Notice of appeal
Appeal
Aug 18, 2025
Notice of appeal
Appeal
Aug 13, 2025
(Electronic) Receipt
Appeal
Aug 13, 2025
Notice of appeal
Appeal
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Means of redress
OPPO
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
Jun 18, 2025
May 21, 2025
May 13, 2025
May 13, 2025
May 9, 2025
May 9, 2025
May 9, 2025
May 9, 2025
May 9, 2025
Apr 24, 2025
Apr 24, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 1, 2025
Apr 1, 2025
Mar 27, 2025
Mar 27, 2025
Mar 27, 2025
Mar 26, 2025
Mar 26, 2025
Mar 25, 2025
Mar 25, 2025
Mar 25, 2025
Mar 20, 2025
Mar 20, 2025
Mar 20, 2025
Mar 20, 2025
Mar 20, 2025
Mar 20, 2025
Mar 19, 2025
Mar 19, 2025
Mar 19, 2025
Mar 19, 2025
Mar 19, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Mar 14, 2025
Feb 7, 2025
Feb 7, 2025
Oct 21, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 9, 2024
Oct 1, 2024
Nov 24, 2023
Nov 24, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Nov 21, 2023
Jul 18, 2023
Jul 18, 2023
Jul 13, 2023
Jul 13, 2023
Jul 13, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 11, 2023
Jul 11, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Jul 5, 2023
Oct 17, 2022
Sep 8, 2022
Decision to grant a European patent
Search/Exam
Aug 30, 2022
(Electronic) Receipt
Search/Exam
Aug 30, 2022
Filing of the translations of the claims
Search/Exam
Aug 30, 2022
French translation of claims
Search/Exam
Aug 30, 2022
German translation of the claims
Search/Exam
Aug 30, 2022
Letter accompanying subsequently filed items
Search/Exam
Apr 20, 2022
Apr 20, 2022
Apr 20, 2022
Intention to grant (signatures)
Search/Exam
Apr 20, 2022
Intention to grant (signatures)
Search/Exam
Apr 20, 2022
Text intended for grant (clean copy)
Search/Exam
Apr 20, 2022
Feb 26, 2021
(Electronic) Receipt
Search/Exam
Feb 26, 2021
Amended claims with annotations
Search/Exam
Feb 26, 2021
Claims
Search/Exam
Feb 26, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 26, 2021
Feb 26, 2021
Feb 26, 2021
Jan 14, 2021
Jan 4, 2021
(Electronic) Receipt
Search/Exam
Jan 4, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 4, 2021
Sep 8, 2020
Annex to the communication
Search/Exam
Sep 8, 2020
Communication from the Examining Division
Search/Exam
May 19, 2020
(Electronic) Receipt
Search/Exam
May 19, 2020
Annex
Search/Exam
May 19, 2020
Letter accompanying subsequently filed items
Search/Exam
May 19, 2020
Jan 21, 2020
Annex to the communication
Search/Exam
Jan 21, 2020
Communication from the Examining Division
Search/Exam
Oct 17, 2019
Examination started
Search/Exam
Feb 15, 2019
(Electronic) Receipt
Search/Exam
Feb 15, 2019
Feb 15, 2019
Letter accompanying subsequently filed items
Search/Exam
Feb 15, 2019
Matter concerning the application
Search/Exam
Feb 4, 2019
(Electronic) Receipt
Search/Exam
Feb 4, 2019
Feb 4, 2019
Amended claims with annotations
Search/Exam
Feb 4, 2019
Feb 4, 2019
Amendments received before examination
Search/Exam
Feb 4, 2019
Citation for the examination procedure
Search/Exam
Feb 4, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 24, 2018
Jul 6, 2018
Jul 6, 2018
European search opinion
Search/Exam
Jul 6, 2018
Information on Search Strategy
Search/Exam
Jul 6, 2018
Supplementary European search report
Search/Exam
Jun 21, 2018
Search started
Search/Exam
Mar 14, 2018
(Electronic) Receipt
Search/Exam
Mar 14, 2018
Mar 14, 2018
Amended claims with annotations
Search/Exam
Mar 14, 2018
Amendments received before examination
Search/Exam
Mar 14, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 29, 2017
Sep 27, 2017
Sep 25, 2017
Communication to designated inventor
Search/Exam
Sep 25, 2017
Communication to designated inventor
Search/Exam
Sep 25, 2017
Communication to designated inventor
Search/Exam
Sep 25, 2017
Communication to designated inventor
Search/Exam
Sep 5, 2017
Aug 14, 2017
(Electronic) Receipt
Search/Exam
Aug 14, 2017
Request for entry into the European phase
Search/Exam
Jun 30, 2017
Information on entry into European phase
Search/Exam
Sep 14, 2016
Aug 25, 2016
Copy of the international search report
Search/Exam
Aug 25, 2016
Published international application - A1
Search/Exam