Patent No. EP3776105 (titled "Emission Control Of An Asphalt Mixing Plant") was filed by Ammann Schweiz on Mar 29, 2018. The application was issued on May 4, 2022.

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 |
|---|---|---|
| WIRTGEN MINERAL | Oct 7, 2022 | RAU |
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
Jan 29, 2026
Jan 22, 2026
Jan 22, 2026
Jan 22, 2026
Dec 9, 2025
Dec 9, 2025
Dec 9, 2025
Dec 4, 2025
Nov 28, 2025
Nov 10, 2025
Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Mar 25, 2025
Mar 19, 2025
Mar 19, 2025
Mar 19, 2025
Feb 14, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Feb 10, 2025
Dec 20, 2024
Oct 11, 2024
Oct 7, 2024
Oct 7, 2024
Oct 7, 2024
Oct 7, 2024
Oct 7, 2024
Oct 7, 2024
Oct 7, 2024
Aug 20, 2024
Aug 20, 2024
Aug 13, 2024
Aug 13, 2024
Aug 13, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 18, 2024
Jul 4, 2024
May 8, 2024
May 3, 2024
May 3, 2024
May 3, 2024
Apr 23, 2024
Apr 23, 2024
Apr 18, 2024
Apr 18, 2024
Apr 12, 2024
Apr 12, 2024
Apr 12, 2024
Apr 12, 2024
Apr 12, 2024
Apr 12, 2024
Apr 12, 2024
Apr 12, 2024
Apr 12, 2024
Dec 1, 2023
Nov 27, 2023
Nov 27, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Nov 22, 2023
Jul 6, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Jul 3, 2023
Feb 21, 2023
Feb 21, 2023
Feb 1, 2023
Jan 25, 2023
Jan 25, 2023
Jan 25, 2023
Jan 25, 2023
Jan 25, 2023
Oct 13, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
Oct 7, 2022
May 17, 2022
Apr 7, 2022
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Mar 1, 2022
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Nov 9, 2021
Oct 4, 2021
Jan 20, 2021
Nov 5, 2020
Nov 3, 2020
Nov 3, 2020
Nov 3, 2020
Oct 5, 2020
Sep 22, 2020
Sep 15, 2020
Sep 15, 2020
Aug 7, 2020
Apr 9, 2020
Apr 9, 2020
Apr 9, 2020
Apr 9, 2020
Feb 25, 2020
Jan 31, 2020
Jan 28, 2020
Jan 28, 2020
Jan 28, 2020
Jan 28, 2020
Oct 3, 2019
Oct 3, 2019
Nov 27, 2018
Nov 26, 2018
Nov 26, 2018
Nov 26, 2018
Jun 18, 2018
Jun 18, 2018
Jun 18, 2018
Jun 18, 2018
Apr 23, 2018
Apr 19, 2018
Apr 19, 2018
Apr 17, 2018
Mar 29, 2018
Mar 29, 2018
Mar 29, 2018
Mar 29, 2018
Mar 29, 2018
Mar 29, 2018
Mar 29, 2018