The weekly litigation news digest is live. Subscribe now
The patent EP3056923 was granted to Zoller & Frhlich on Apr 14, 2021. The application was filed on Feb 15, 2016 under application number EP16155689A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 | Opposition Status |
|---|---|---|---|
| LEICA GEOSYSTEMS | Jan 14, 2022 | KAMINSKI HARMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE10150436 |
| DESCRIPTION | DE102006024534 |
| DESCRIPTION | DE102008034198 |
| DESCRIPTION | DE202010013825U |
| OPPOSITION | DE102013102554 |
| OPPOSITION | DE202010013825U |
| OPPOSITION | US2003137449 |
| OPPOSITION | US2006188143 |
| SEARCH | DE102013102554 |
| SEARCH | DE202010013825U |
| SEARCH | US2003137449 |
| SEARCH | US2006188143 |
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
Oct 14, 2025
Oct 14, 2025
Oct 14, 2025
Oct 2, 2025
Oct 2, 2025
Oct 1, 2025
(Electronic) Receipt
Appeal
Oct 1, 2025
Sep 5, 2025
(Electronic) Receipt
Appeal
Sep 5, 2025
Sep 5, 2025
Sep 5, 2025
Sep 5, 2025
Mar 27, 2025
Mar 27, 2025
Mar 27, 2025
Mar 21, 2025
Mar 5, 2025
Mar 5, 2025
May 16, 2024
May 16, 2024
May 7, 2024
Jan 23, 2024
Jan 17, 2024
(Electronic) Receipt
Appeal
Jan 17, 2024
Jan 17, 2024
Dec 15, 2023
Dec 11, 2023
(Electronic) Receipt
Appeal
Dec 11, 2023
Dec 11, 2023
Reply to appeal
Appeal
Jul 31, 2023
Jul 25, 2023
(Electronic) Receipt
Appeal
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Claims
Appeal
Jul 25, 2023
Claims
Appeal
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jun 7, 2023
Jun 2, 2023
Jun 2, 2023
Jun 1, 2023
(Electronic) Receipt
Appeal
Jun 1, 2023
Jun 1, 2023
May 25, 2023
(Electronic) Receipt
Appeal
May 25, 2023
May 25, 2023
Notice of appeal
Appeal
Mar 16, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Means of redress
OPPO
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Mar 15, 2023
Feb 20, 2023
Feb 15, 2023
Feb 10, 2023
Feb 10, 2023
Feb 10, 2023
Feb 10, 2023
Feb 10, 2023
Feb 10, 2023
Feb 10, 2023
Feb 10, 2023
Feb 7, 2023
Feb 1, 2023
Jan 30, 2023
Jan 30, 2023
Jan 30, 2023
Jan 30, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 18, 2023
Jan 12, 2023
Jan 10, 2023
Jan 10, 2023
Jan 10, 2023
Jan 3, 2023
Jan 3, 2023
Jan 3, 2023
Jan 2, 2023
Dec 23, 2022
Dec 23, 2022
Dec 23, 2022
Dec 22, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Dec 12, 2022
Dec 12, 2022
Dec 12, 2022
Oct 10, 2022
Sep 30, 2022
Sep 30, 2022
Sep 30, 2022
Aug 4, 2022
Aug 2, 2022
Aug 2, 2022
Aug 2, 2022
Aug 2, 2022
Aug 2, 2022
Aug 2, 2022
Aug 2, 2022
Aug 2, 2022
Jun 9, 2022
Jun 3, 2022
Jun 3, 2022
Jun 3, 2022
Jun 3, 2022
Jun 3, 2022
Jan 28, 2022
Jan 28, 2022
Jan 20, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Jan 14, 2022
Apr 28, 2021
Mar 18, 2021
Decision to grant a European patent
Search/Exam
Mar 11, 2021
Change to the inventor details
Search/Exam
Mar 8, 2021
(Electronic) Receipt
Search/Exam
Mar 8, 2021
English translation of the claims
Search/Exam
Mar 8, 2021
Filing of the translations of the claims
Search/Exam
Mar 8, 2021
French translation of claims
Search/Exam
Mar 8, 2021
Letter accompanying subsequently filed items
Search/Exam
Feb 23, 2021
Document concerning representation
Search/Exam
Nov 5, 2020
Nov 5, 2020
Nov 5, 2020
Intention to grant (signatures)
Search/Exam
Nov 5, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 5, 2020
Oct 13, 2020
Oct 5, 2020
Aug 20, 2020
(Electronic) Receipt
Search/Exam
Aug 20, 2020
Amended claims with annotations
Search/Exam
Aug 20, 2020
Amended description with annotations
Search/Exam
Aug 20, 2020
Claims
Search/Exam
Aug 20, 2020
Description
Search/Exam
Aug 20, 2020
Letter accompanying subsequently filed items
Search/Exam
Aug 20, 2020
Aug 7, 2020
Annex to the communication
Search/Exam
Aug 7, 2020
Communication from the Examining Division
Search/Exam
Jun 9, 2020
Amended claims with annotations
Search/Exam
Jun 9, 2020
Claims
Search/Exam
Jun 9, 2020
Jun 8, 2020
Amended claims with annotations
Search/Exam
Jun 8, 2020
Claims
Search/Exam
Jun 8, 2020
Jan 28, 2020
Annex to the communication
Search/Exam
Jan 28, 2020
Communication from the Examining Division
Search/Exam
Dec 20, 2019
(Electronic) Receipt
Search/Exam
Dec 20, 2019
Letter accompanying subsequently filed items
Search/Exam
Dec 20, 2019
Matter concerning the application
Search/Exam
Apr 4, 2019
Amended claims with annotations
Search/Exam
Apr 4, 2019
Claims
Search/Exam
Apr 4, 2019
Mar 1, 2019
Feb 25, 2019
Oct 15, 2018
Annex to the communication
Search/Exam
Oct 15, 2018
Communication from the Examining Division
Search/Exam
Sep 17, 2018
Amended claims with annotations
Search/Exam
Sep 17, 2018
Claims
Search/Exam
Sep 17, 2018
Aug 16, 2018
Annex to the communication
Search/Exam
Aug 16, 2018
Communication from the Examining Division
Search/Exam
Aug 6, 2018
Examination started
Search/Exam
Jul 12, 2018
Jun 26, 2018
(Electronic) Receipt
Search/Exam
Jun 26, 2018
Enquiry as to the processing of the file
Search/Exam
Jun 26, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 7, 2017
Feb 22, 2017
Feb 10, 2017
Abstract
Search/Exam
Feb 10, 2017
Abstract
Search/Exam
Feb 10, 2017
Feb 10, 2017
Amended claims with annotations
Search/Exam
Feb 10, 2017
Feb 10, 2017
Amended description with annotations
Search/Exam
Feb 10, 2017
Amendments received before examination
Search/Exam
Feb 10, 2017
Payment of fees and costs
Search/Exam
Aug 22, 2016
Jul 20, 2016
Notification of forthcoming publication
Search/Exam
Jul 8, 2016
Jul 8, 2016
European search opinion
Search/Exam
Jul 8, 2016
European search report
Search/Exam
Jul 8, 2016
Information on Search Strategy
Search/Exam
Jun 24, 2016
Search started
Search/Exam
Jun 21, 2016
Jun 14, 2016
Jun 14, 2016
Apr 8, 2016
Communication to designated inventor
Search/Exam
Apr 8, 2016
Communication to designated inventor
Search/Exam
Apr 8, 2016
Communication to designated inventor
Search/Exam
Feb 16, 2016
Letter concerning the priority
Search/Exam
Feb 16, 2016
Priority document
Search/Exam
Feb 16, 2016
Priority document
Search/Exam
Feb 16, 2016
Priority document
Search/Exam
Feb 16, 2016
Priority document
Search/Exam
Feb 15, 2016
Abstract
Search/Exam
Feb 15, 2016
Feb 15, 2016
Claims
Search/Exam
Feb 15, 2016
Description
Search/Exam
Feb 15, 2016
Designation of inventor
Search/Exam
Feb 15, 2016
Drawings
Search/Exam
Feb 15, 2016
Priority search results
Search/Exam
Feb 15, 2016
Request for grant of a European patent
Search/Exam