Patent No. EP3129750 (titled "Measurement Probe Unit For Metrology Applications") was filed by LK Metrology on Apr 8, 2015. The application was issued on May 31, 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 |
|---|---|---|
| CARL ZEISS | Feb 27, 2024 | PATENTANWALTE BRESSEL UND PARTNER MBB |
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
Feb 2, 2026
Dec 19, 2025
Dec 19, 2025
Dec 16, 2025
Dec 16, 2025
Dec 16, 2025
Oct 29, 2025
Oct 29, 2025
Oct 29, 2025
Oct 29, 2025
Oct 29, 2025
Oct 29, 2025
Oct 29, 2025
Oct 15, 2025
Oct 15, 2025
Oct 15, 2025
Oct 15, 2025
Oct 9, 2025
Oct 9, 2025
Oct 9, 2025
Sep 24, 2025
Sep 24, 2025
Aug 6, 2025
Jul 31, 2025
Jul 31, 2025
Jul 31, 2025
May 16, 2025
May 15, 2025
May 12, 2025
May 6, 2025
May 6, 2025
May 6, 2025
May 5, 2025
May 5, 2025
May 5, 2025
May 5, 2025
May 5, 2025
May 5, 2025
Mar 14, 2025
Mar 11, 2025
Mar 11, 2025
Mar 11, 2025
Mar 11, 2025
Mar 11, 2025
Mar 11, 2025
Mar 11, 2025
Feb 6, 2025
Feb 3, 2025
Feb 3, 2025
Feb 3, 2025
Feb 3, 2025
Feb 3, 2025
Sep 18, 2024
Sep 13, 2024
Sep 13, 2024
Sep 13, 2024
Sep 13, 2024
Sep 13, 2024
Sep 13, 2024
Sep 13, 2024
Sep 13, 2024
Sep 13, 2024
Sep 13, 2024
Sep 13, 2024
Jun 17, 2024
Jun 17, 2024
Jun 10, 2024
Jun 10, 2024
Jun 10, 2024
Apr 19, 2024
Apr 17, 2024
Apr 16, 2024
Apr 16, 2024
Apr 16, 2024
Apr 16, 2024
Apr 16, 2024
Apr 15, 2024
Apr 10, 2024
Apr 10, 2024
Apr 10, 2024
Mar 15, 2024
Mar 15, 2024
Mar 4, 2024
Feb 28, 2024
Feb 28, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Jun 14, 2023
May 22, 2023
May 10, 2023
May 8, 2023
May 4, 2023
May 4, 2023
May 4, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Feb 28, 2023
Oct 28, 2022
Oct 28, 2022
Oct 28, 2022
Oct 28, 2022
Oct 28, 2022
Oct 28, 2022
Sep 2, 2021
Sep 2, 2021
Sep 2, 2021
Sep 2, 2021
Sep 2, 2021
Aug 2, 2021
Jul 27, 2021
Jul 27, 2021
Jul 27, 2021
Mar 30, 2021
Mar 30, 2021
Mar 23, 2021
Jul 12, 2017
Jul 12, 2017
Jun 20, 2017
Jun 20, 2017
Jun 2, 2017
May 17, 2017
May 17, 2017
May 17, 2017
May 17, 2017
May 17, 2017
May 17, 2017
May 17, 2017
May 17, 2017
May 17, 2017
Jan 18, 2017
Nov 15, 2016
Nov 11, 2016
Nov 11, 2016
Nov 11, 2016
Nov 11, 2016
Nov 8, 2016
Sep 2, 2016
Sep 2, 2016
Aug 19, 2016
Nov 3, 2015
Oct 15, 2015
Oct 15, 2015
Jun 25, 2015
Jun 25, 2015
Jun 25, 2015
May 18, 2015
Apr 8, 2015
Apr 8, 2015
Apr 8, 2015
Apr 8, 2015
Apr 8, 2015
Apr 8, 2015