Patent No. EP2731425 (titled "Red Blood Cell Products And The Storage Of Red Blood Cells In Containers Free Of Phthalate Plasticizer") was filed by Fenwal on Sep 19, 2012. The application was issued on Apr 11, 2018.

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 |
|---|---|---|
| BASF | Jul 5, 2018 | BASF ASSOCIATION |
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
Jan 29, 2026
Jan 29, 2026
Jan 26, 2026
Jan 26, 2026
Jan 21, 2026
Jan 21, 2026
Jan 21, 2026
Oct 10, 2025
Oct 1, 2025
Oct 1, 2025
Oct 1, 2025
Oct 1, 2025
Oct 1, 2025
Aug 20, 2025
Aug 20, 2025
Aug 20, 2025
Aug 11, 2025
Jul 8, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Apr 7, 2025
Mar 20, 2025
Feb 27, 2025
Feb 24, 2025
Feb 24, 2025
Feb 24, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 6, 2025
Feb 6, 2025
Feb 6, 2025
Feb 5, 2025
Feb 5, 2025
Feb 5, 2025
Jan 30, 2025
Jan 30, 2025
Jan 27, 2025
Jan 27, 2025
Jan 27, 2025
Jan 27, 2025
Jan 27, 2025
Jan 27, 2025
Dec 20, 2024
Dec 16, 2024
Dec 16, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 5, 2024
Dec 5, 2024
Dec 5, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Apr 15, 2024
Apr 15, 2024
Apr 15, 2024
Apr 12, 2024
Apr 12, 2024
Apr 12, 2024
Apr 12, 2024
Mar 1, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 20, 2024
Feb 20, 2024
Jan 30, 2024
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 2, 2024
Dec 21, 2023
Dec 21, 2023
Dec 21, 2023
Dec 1, 2023
Dec 1, 2023
Nov 14, 2023
Nov 9, 2023
Nov 9, 2023
Nov 9, 2023
Aug 7, 2023
Aug 7, 2023
Aug 2, 2023
Jun 30, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 27, 2023
Jun 21, 2023
Jun 21, 2023
Jun 17, 2023
Apr 28, 2022
Apr 21, 2022
Apr 21, 2022
Apr 21, 2022
Jan 8, 2022
Dec 22, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Oct 22, 2021
Oct 22, 2021
Oct 18, 2021
Oct 18, 2021
Oct 18, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Aug 9, 2021
Jun 29, 2021
Jun 9, 2021
Jun 9, 2021
Jun 2, 2021
Jun 2, 2021
Jun 1, 2021
Jun 1, 2021
May 3, 2021
Apr 30, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Apr 27, 2021
Nov 12, 2020
Nov 11, 2020
Nov 9, 2020
Nov 9, 2020
Nov 9, 2020
Nov 9, 2020
Nov 9, 2020
Nov 9, 2020
Sep 25, 2020
Sep 22, 2020
Sep 22, 2020
Sep 22, 2020
Sep 18, 2020
Sep 17, 2020
Sep 14, 2020
Sep 14, 2020
Sep 14, 2020
Sep 8, 2020
Sep 8, 2020
Sep 7, 2020
Sep 3, 2020
Sep 3, 2020
Sep 3, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Sep 2, 2020
Jun 8, 2020
Jun 5, 2020
Jun 2, 2020
Jun 2, 2020
Jun 2, 2020
Jun 2, 2020
Jun 2, 2020
Jun 2, 2020
Mar 19, 2020
Mar 19, 2020
Mar 18, 2020
Mar 13, 2020
Mar 13, 2020
Mar 13, 2020
Feb 3, 2020
Feb 3, 2020
Feb 3, 2020
Jan 28, 2020
Jan 28, 2020
Jan 28, 2020
Jan 27, 2020
Jan 27, 2020
Jan 17, 2020
Jan 17, 2020
Jan 17, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Jan 15, 2020
Sep 10, 2019
Sep 10, 2019
Sep 10, 2019
Sep 9, 2019
Sep 6, 2019
Sep 6, 2019
Sep 6, 2019
Sep 6, 2019
Sep 6, 2019
Sep 6, 2019
Jun 6, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
May 31, 2019
Jan 23, 2019
Jan 23, 2019
Oct 22, 2018
Oct 22, 2018
Oct 22, 2018
Oct 16, 2018
Oct 16, 2018
Oct 16, 2018
Oct 4, 2018
Oct 4, 2018
Sep 14, 2018
Sep 14, 2018
Sep 14, 2018
Jul 13, 2018
Jul 5, 2018
Jul 5, 2018
Jul 5, 2018
Jul 5, 2018
Jul 5, 2018
Jul 5, 2018
Jul 5, 2018
Jul 5, 2018
Jul 5, 2018
Jul 5, 2018
Jul 5, 2018
Jul 5, 2018
Apr 23, 2018
Mar 15, 2018
Mar 5, 2018
Mar 5, 2018
Mar 5, 2018
Mar 5, 2018
Mar 5, 2018
Mar 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Feb 5, 2018
Sep 26, 2017
Sep 26, 2017
Sep 26, 2017
Sep 26, 2017
Sep 26, 2017
Jun 2, 2017
Jun 2, 2017
Jun 2, 2017
Jun 2, 2017
Jun 2, 2017
Jun 2, 2017
Mar 28, 2017
Mar 23, 2017
Mar 23, 2017
Mar 23, 2017
Nov 24, 2016
Nov 24, 2016
Jul 29, 2016
Jul 29, 2016
Jul 29, 2016
Jul 29, 2016
Jul 29, 2016
Jul 29, 2016
Jul 29, 2016
May 30, 2016
May 23, 2016
May 23, 2016
May 23, 2016
Jan 22, 2016
Jan 22, 2016
Aug 20, 2015
Aug 20, 2015
Aug 20, 2015
Aug 20, 2015
Aug 20, 2015
Aug 20, 2015
Aug 20, 2015
Aug 20, 2015
Aug 20, 2015
Aug 20, 2015
Aug 20, 2015
Jun 19, 2015
Jun 15, 2015
Jun 8, 2015
Feb 12, 2015
Feb 12, 2015
Feb 5, 2015
Sep 8, 2014
Sep 5, 2014
Aug 18, 2014
Aug 18, 2014
Aug 18, 2014
Apr 24, 2014
Apr 24, 2014
Apr 24, 2014
Apr 24, 2014
Apr 24, 2014
Apr 24, 2014
Apr 24, 2014
Apr 8, 2014
Feb 21, 2014
Feb 11, 2014
Dec 2, 2013
Dec 2, 2013
Dec 2, 2013
Dec 2, 2013
Dec 2, 2013
Apr 15, 2013
Apr 15, 2013
Apr 15, 2013
Apr 15, 2013
Mar 28, 2013
Mar 28, 2013
Dec 7, 2012
Dec 7, 2012
Dec 7, 2012
Oct 1, 2012
Oct 1, 2012
Oct 1, 2012
Oct 1, 2012
Oct 1, 2012