Patent No. EP4023556 (titled "Lavatory With Expandable Door") was filed by The Boeing on Dec 23, 2021. The application was issued on Jun 18, 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 |
|---|---|---|
| AIRBUS OPERATIONS | Mar 18, 2026 | LKGLOBAL LORENZ & KOPF |
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 6, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jul 29, 2026
Jun 15, 2026
Jun 15, 2026
Jun 15, 2026
Jun 9, 2026
Jun 9, 2026
Jun 9, 2026
Apr 1, 2026
Apr 1, 2026
Mar 27, 2026
Mar 26, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Jul 1, 2025
May 22, 2025
May 8, 2025
May 8, 2025
May 8, 2025
May 8, 2025
Jan 13, 2025
Jan 13, 2025
Jan 13, 2025
Jan 13, 2025
Jan 13, 2025
Jan 13, 2025
Jan 8, 2025
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Jan 29, 2024
Nov 10, 2023
Nov 10, 2023
Nov 2, 2023
Feb 17, 2023
Feb 13, 2023
Feb 13, 2023
Nov 24, 2022
Nov 24, 2022
Nov 24, 2022
Nov 24, 2022
Nov 24, 2022
Nov 24, 2022
Nov 24, 2022
Jul 11, 2022
Jun 9, 2022
May 6, 2022
May 6, 2022
May 6, 2022
May 6, 2022
Apr 29, 2022
Apr 21, 2022
Mar 1, 2022
Feb 23, 2022
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021