The weekly litigation news digest is live. Subscribe now
The patent EP2972479 was granted to IPG Photonics Canada on Sep 9, 2020. The application was filed on Mar 13, 2014 under application number EP14764437A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| LESSMULLER LASERTECHNIK | Jun 9, 2021 | THUM | ADMISSIBLE |
| STIES | Jun 9, 2021 | TER MEER STEINMEISTER & PARTNER | ADMISSIBLE |
| SPITMANN | Jun 8, 2021 | FISH & RICHARDSON PC | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2011CA50599 |
| DESCRIPTION | CA2728950 |
| INTERNATIONAL-SEARCH-REPORT | DE10155203 |
| INTERNATIONAL-SEARCH-REPORT | US2010142780 |
| INTERNATIONAL-SEARCH-REPORT | US2011284508 |
| INTERNATIONAL-SEARCH-REPORT | US2012138586 |
| INTERNATIONAL-SEARCH-REPORT | US2012285936 |
| OPPOSITION | DE10020559 |
| OPPOSITION | DE10155203 |
| OPPOSITION | DE102007016444 |
| OPPOSITION | DE102011078089 |
| OPPOSITION | DE10321894 |
| OPPOSITION | US2008281413 |
| OPPOSITION | US2010142780 |
| OPPOSITION | US2010288739 |
| OPPOSITION | US2011284508 |
| OPPOSITION | US2012138586 |
| OPPOSITION | US2012285936 |
| OPPOSITION | US6004314 |
| OPPOSITION | WO2011009594 |
| OPPOSITION | WO2012037694 |
| OPPOSITION | WO2013000663 |
| SEARCH | CA2728950 |
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
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Mar 6, 2024
Feb 29, 2024
Feb 29, 2024
Feb 29, 2024
Feb 29, 2024
Feb 29, 2024
Feb 6, 2024
Feb 6, 2024
Feb 6, 2024
Feb 1, 2024
(Electronic) Receipt
Appeal
Feb 1, 2024
Feb 1, 2024
Jan 31, 2024
Jan 31, 2024
Jan 31, 2024
Jan 31, 2024
Jan 24, 2024
Advice of delivery
Appeal
Jan 22, 2024
Jan 22, 2024
Jan 22, 2024
Jan 22, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 15, 2024
(Electronic) Receipt
Appeal
Jan 15, 2024
Jan 15, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 11, 2024
Jan 11, 2024
Jan 11, 2024
Jan 11, 2024
Jan 11, 2024
Jan 11, 2024
Jan 9, 2024
(Electronic) Receipt
Appeal
Jan 9, 2024
Jan 9, 2024
Jan 8, 2024
(Electronic) Receipt
Appeal
Jan 8, 2024
(Electronic) Receipt
Appeal
Jan 8, 2024
(Electronic) Receipt
Appeal
Jan 8, 2024
Jan 8, 2024
Jan 8, 2024
Jan 8, 2024
Jan 8, 2024
Jan 8, 2024
Jan 8, 2024
Jan 8, 2024
Dec 21, 2023
Dec 21, 2023
Dec 21, 2023
Dec 20, 2023
Dec 20, 2023
Dec 20, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Dec 18, 2023
(Electronic) Receipt
Appeal
Dec 18, 2023
(Electronic) Receipt
Appeal
Dec 18, 2023
Dec 18, 2023
Dec 18, 2023
Dec 18, 2023
Dec 14, 2023
Dec 14, 2023
Dec 14, 2023
Dec 11, 2023
(Electronic) Receipt
Appeal
Dec 11, 2023
Dec 11, 2023
Nov 28, 2023
Nov 28, 2023
Nov 28, 2023
Nov 23, 2023
(Electronic) Receipt
Appeal
Nov 23, 2023
Nov 23, 2023
Nov 22, 2023
Advice of delivery
Appeal
Nov 20, 2023
Nov 20, 2023
Nov 20, 2023
Nov 20, 2023
Nov 20, 2023
Nov 15, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 28, 2023
Sep 19, 2023
(Electronic) Receipt
Appeal
Sep 19, 2023
Sep 19, 2023
Sep 19, 2023
Sep 19, 2023
Sep 19, 2023
Reply to appeal
Appeal
Sep 18, 2023
(Electronic) Receipt
Appeal
Sep 18, 2023
Sep 18, 2023
Reply to appeal
Appeal
Sep 15, 2023
Sep 15, 2023
Sep 15, 2023
Sep 11, 2023
(Electronic) Receipt
Appeal
Sep 11, 2023
Sep 11, 2023
Sep 11, 2023
Reply to appeal
Appeal
May 26, 2023
May 26, 2023
May 26, 2023
May 26, 2023
May 11, 2023
May 9, 2023
Apr 21, 2023
(Electronic) Receipt
Appeal
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 16, 2023
(Electronic) Receipt
Appeal
Feb 16, 2023
Feb 16, 2023
Notice of appeal
Appeal
Dec 22, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Means of redress
OPPO
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Nov 22, 2022
Nov 2, 2022
Nov 2, 2022
Nov 2, 2022
Oct 31, 2022
Oct 31, 2022
Oct 31, 2022
Oct 31, 2022
Oct 31, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Authorisation
OPPO
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Sep 30, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 28, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 22, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Aug 11, 2022
Aug 11, 2022
Aug 11, 2022
Aug 11, 2022
Aug 11, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
May 12, 2022
Apr 28, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 7, 2022
Apr 7, 2022
Apr 7, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 1, 2022
Mar 31, 2022
Mar 31, 2022
Mar 31, 2022
Mar 14, 2022
Mar 14, 2022
Mar 14, 2022
Mar 11, 2022
Mar 11, 2022
Mar 11, 2022
Mar 8, 2022
Mar 8, 2022
Mar 8, 2022
Mar 8, 2022
Feb 14, 2022
Feb 14, 2022
Feb 14, 2022
Feb 9, 2022
Feb 9, 2022
Feb 9, 2022
Oct 25, 2021
Oct 25, 2021
Oct 25, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 20, 2021
Oct 8, 2021
Oct 8, 2021
Sep 30, 2021
Sep 30, 2021
Jun 24, 2021
Jun 24, 2021
Jun 23, 2021
Jun 23, 2021
Jun 23, 2021
Jun 23, 2021
Jun 15, 2021
Jun 15, 2021
Jun 15, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 11, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 9, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Sep 21, 2020
Aug 13, 2020
Decision to grant a European patent
Search/Exam
Aug 4, 2020
(Electronic) Receipt
Search/Exam
Aug 4, 2020
Filing of the translations of the claims
Search/Exam
Aug 4, 2020
French translation of claims
Search/Exam
Aug 4, 2020
German translation of the claims
Search/Exam
Aug 4, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 10, 2020
Jul 10, 2020
Jul 10, 2020
Intention to grant (signatures)
Search/Exam
Jul 10, 2020
Text intended for grant (clean copy)
Search/Exam
Jul 10, 2020
Mar 30, 2020
Document concerning representation
Search/Exam
Mar 10, 2020
Document concerning representation
Search/Exam
Oct 23, 2019
(Electronic) Receipt
Search/Exam
Oct 23, 2019
Amended claims with annotations
Search/Exam
Oct 23, 2019
Claims
Search/Exam
Oct 23, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 23, 2019
Jun 28, 2019
Annex to the communication
Search/Exam
Jun 28, 2019
Communication from the Examining Division
Search/Exam
Jun 17, 2019
Examination started
Search/Exam
Mar 26, 2019
Jun 5, 2018
May 18, 2018
(Electronic) Receipt
Search/Exam
May 18, 2018
Annexes in respect of a client data request
Search/Exam
May 18, 2018
Letter accompanying subsequently filed items
Search/Exam
May 18, 2018
Feb 19, 2018
(Electronic) Receipt
Search/Exam
Feb 19, 2018
Letter accompanying subsequently filed items
Search/Exam
Feb 19, 2018
Letter concerning fees and payments
Search/Exam
Jan 29, 2018
Jan 17, 2018
(Electronic) Receipt
Search/Exam
Jan 17, 2018
Annexes in respect of a client data request
Search/Exam
Jan 17, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 17, 2018
Jan 11, 2018
Jan 11, 2018
Jan 4, 2018
(Electronic) Receipt
Search/Exam
Jan 4, 2018
Authorisation
Search/Exam
Jan 4, 2018
Letter accompanying subsequently filed items
Search/Exam
Jan 4, 2018
Jun 27, 2017
(Electronic) Receipt
Search/Exam
Jun 27, 2017
Jun 27, 2017
Amended claims with annotations
Search/Exam
Jun 27, 2017
Amendments received before examination
Search/Exam
Jun 27, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 22, 2016
Dec 5, 2016
Dec 5, 2016
European search opinion
Search/Exam
Dec 5, 2016
Information on Search Strategy
Search/Exam
Dec 5, 2016
Supplementary European search report
Search/Exam
Nov 22, 2016
Search started
Search/Exam
Apr 22, 2016
(Electronic) Receipt
Search/Exam
Apr 22, 2016
Apr 22, 2016
Amended claims with annotations
Search/Exam
Apr 22, 2016
Amendments received before examination
Search/Exam
Apr 22, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 23, 2015
Nov 5, 2015
Oct 20, 2015
Communication to designated inventor
Search/Exam
Oct 12, 2015
(Electronic) Receipt
Search/Exam
Oct 12, 2015
Request for entry into the European phase
Search/Exam
Oct 1, 2015
Jul 22, 2015
Information on entry into European phase
Search/Exam
Oct 8, 2014
Sep 18, 2014
Copy of the international search report
Search/Exam
Sep 18, 2014
Published international application - A1
Search/Exam