Patent No. EP3813027 (titled "Methods And Systems For Creating And Interacting With Three Dimensional Virtual Models") was filed by Align Technology on Jul 19, 2011. The application was issued on Feb 19, 2025.

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 |
|---|---|---|
| INSTITUT STRAUMANN | Nov 19, 2025 | BAHRDEHLE PAGENBERG PARTNERSCHAFT MBB PATENTANWÄLTE, RECHTSANWÄLTE |
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
Oct 5, 2026
Oct 5, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Apr 24, 2026
Apr 24, 2026
Apr 24, 2026
Apr 24, 2026
Apr 24, 2026
Apr 8, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Apr 1, 2026
Feb 9, 2026
Feb 9, 2026
Feb 9, 2026
Feb 4, 2026
Feb 4, 2026
Feb 4, 2026
Dec 1, 2025
Dec 1, 2025
Nov 25, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Nov 19, 2025
Mar 4, 2025
Jan 23, 2025
Jan 9, 2025
Jan 9, 2025
Jan 9, 2025
Jan 9, 2025
Jan 9, 2025
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Sep 12, 2024
Aug 19, 2024
Aug 19, 2024
Aug 19, 2024
Aug 19, 2024
Aug 19, 2024
Apr 26, 2024
Apr 26, 2024
Apr 26, 2024
Apr 26, 2024
Apr 26, 2024
Apr 26, 2024
Apr 9, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Mar 18, 2024
Nov 20, 2023
Nov 20, 2023
Feb 23, 2022
Feb 23, 2022
Feb 23, 2022
Jan 20, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Sep 8, 2021
Sep 6, 2021
Sep 6, 2021
Jun 16, 2021
Jun 16, 2021
May 25, 2021
May 4, 2021
May 4, 2021
May 4, 2021
May 3, 2021
Apr 12, 2021
Mar 31, 2021
Mar 31, 2021
Mar 31, 2021
Mar 31, 2021
Mar 31, 2021
Mar 31, 2021
Mar 31, 2021
Mar 31, 2021
Mar 26, 2021
Mar 26, 2021
Mar 26, 2021
Mar 26, 2021
Feb 26, 2021
Feb 26, 2021
Feb 2, 2021
Feb 1, 2021
Jan 21, 2021
Jan 21, 2021
Jan 21, 2021
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Feb 14, 2012