Patent No. EP3906770 (titled "Drive System For A Self-Propelled Harvesting Machine") was filed by Claas Selbstfahrende Erntemaschinen on Feb 11, 2021. The application was issued on Sep 13, 2023.

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 |
|---|---|---|
| DEERE & COMPANYJOHN DEERE | May 7, 2024 | HOLST |
| JOHN DEERE | May 7, 2024 | HOLST |
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
Aug 12, 2026
Aug 12, 2026
Aug 12, 2026
Aug 12, 2026
Aug 12, 2026
Aug 12, 2026
Aug 12, 2026
Aug 12, 2026
Aug 12, 2026
Aug 12, 2026
Mar 26, 2026
Mar 23, 2026
Mar 23, 2026
Mar 23, 2026
Mar 16, 2026
Mar 10, 2026
Mar 10, 2026
Mar 10, 2026
Mar 10, 2026
Mar 10, 2026
Mar 10, 2026
Mar 10, 2026
Mar 10, 2026
Mar 4, 2026
Mar 4, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 13, 2026
Feb 11, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 3, 2025
Feb 3, 2025
Feb 3, 2025
Feb 3, 2025
Feb 3, 2025
Oct 17, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Oct 14, 2024
Jun 27, 2024
Jun 27, 2024
Jun 17, 2024
Jun 7, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 24, 2024
May 24, 2024
May 24, 2024
May 24, 2024
May 21, 2024
May 21, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
May 7, 2024
Sep 26, 2023
Aug 18, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Aug 8, 2023
Apr 25, 2023
Apr 25, 2023
Apr 25, 2023
Apr 25, 2023
Apr 25, 2023
Apr 25, 2023
Jan 30, 2023
Jan 30, 2023
Jan 30, 2023
Jan 9, 2023
Jan 9, 2023
Jan 9, 2023
Jan 9, 2023
Jan 9, 2023
Jan 9, 2023
Dec 6, 2022
May 25, 2022
May 25, 2022
May 25, 2022
May 19, 2022
Nov 15, 2021
Oct 13, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 18, 2021
Aug 3, 2021
Mar 1, 2021
Mar 1, 2021
Feb 11, 2021
Feb 11, 2021
Feb 11, 2021
Feb 11, 2021
Feb 11, 2021
Feb 11, 2021
Feb 11, 2021