Patent No. EP4122507 (titled "Method Of Preparing Calcification-Resistant Bioprosthetic Tissue") was filed by ST Jude Medical on Jun 29, 2018. The application was issued on Apr 17, 2024.

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 |
|---|---|---|
| BOSTON SCIENTIFIC | Jan 17, 2025 | PETERREINS SCHLEY |
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
Jun 17, 2026
Jun 17, 2026
Mar 13, 2026
Mar 13, 2026
Mar 11, 2026
Mar 6, 2026
Mar 6, 2026
Mar 6, 2026
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 22, 2025
Aug 19, 2025
Aug 19, 2025
Aug 19, 2025
Aug 19, 2025
Aug 19, 2025
May 28, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
May 22, 2025
Jan 29, 2025
Jan 29, 2025
Jan 23, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Jan 17, 2025
Apr 30, 2024
Mar 21, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Nov 13, 2023
Nov 13, 2023
Nov 13, 2023
Nov 13, 2023
Nov 13, 2023
Nov 13, 2023
Oct 4, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jul 24, 2023
Jan 30, 2023
Jan 5, 2023
Jan 4, 2023
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 7, 2022
Jul 29, 2022
Jul 29, 2022
Jul 29, 2022
Jul 29, 2022
Jul 29, 2022
Jul 29, 2022
Jul 29, 2022
Jul 29, 2022
Feb 4, 2019