The weekly litigation news digest is live. Subscribe now
The patent EP3137641 was granted to Alcoa USA on Aug 21, 2024. The application was filed on Apr 30, 2015 under application number EP15722847A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| C TEC CONSTELLIUM TECHNOLOGY CENTERCONSTELLIUM NEUF BRISACHCONSTELLIUM MUSCLE SHOALS | Oct 7, 2020 | CONSTELLIUM PROPRIETE INDUSTRIELLE | ADMISSIBLE |
| NOVELIS | Oct 6, 2020 | WEICKMANN & WEICKMANN | ADMISSIBLE |
| NOVELIS | Oct 6, 2020 | WEICKMANN & WEICKMANN PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | EP1870481 |
| OPPOSITION | EP2997171 |
| OPPOSITION | FR3005664 |
| OPPOSITION | JP2004010941 |
| OPPOSITION | US2010159266 |
| OPPOSITION | US2012227871 |
| OPPOSITION | US5704240 |
| OPPOSITION | US5718352 |
| OPPOSITION | WO2014184450 |
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
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 16, 2024
Jul 16, 2024
Jul 16, 2024
Jul 16, 2024
Jul 16, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
Jun 4, 2024
May 27, 2024
May 16, 2024
May 16, 2024
May 16, 2024
May 16, 2024
Mar 26, 2024
Mar 26, 2024
Mar 26, 2024
Mar 26, 2024
Feb 27, 2024
Feb 27, 2024
Feb 27, 2024
Feb 22, 2024
Feb 21, 2024
(Electronic) Receipt
Appeal
Feb 21, 2024
Feb 21, 2024
Feb 19, 2024
(Electronic) Receipt
Appeal
Feb 19, 2024
Feb 19, 2024
Feb 15, 2024
Feb 15, 2024
Feb 12, 2024
(Electronic) Receipt
Appeal
Feb 12, 2024
Feb 12, 2024
Jan 19, 2024
Jan 19, 2024
Jan 15, 2024
(Electronic) Receipt
Appeal
Jan 15, 2024
Jan 15, 2024
Jan 15, 2024
Jan 9, 2024
Jan 9, 2024
Jan 4, 2024
(Electronic) Receipt
Appeal
Jan 4, 2024
Jan 4, 2024
Dec 5, 2023
Dec 5, 2023
Dec 5, 2023
Oct 17, 2023
Oct 17, 2023
Oct 12, 2023
(Electronic) Receipt
Appeal
Oct 12, 2023
Oct 12, 2023
Aug 3, 2023
Aug 3, 2023
Jul 12, 2023
Jul 12, 2023
Jul 12, 2023
Jul 7, 2023
Jul 7, 2023
Jan 24, 2023
Jan 24, 2023
Jan 19, 2023
(Electronic) Receipt
Appeal
Jan 19, 2023
Jan 19, 2023
Reply to appeal
Appeal
Sep 12, 2022
Sep 12, 2022
Sep 7, 2022
(Electronic) Receipt
Appeal
Sep 7, 2022
Sep 7, 2022
Sep 7, 2022
Sep 7, 2022
Aug 16, 2022
Jul 13, 2022
Jul 13, 2022
Jul 13, 2022
Jul 6, 2022
(Electronic) Receipt
Appeal
Jul 6, 2022
Jul 6, 2022
Notice of appeal
Appeal
May 18, 2022
May 12, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
Means of redress
OPPO
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
May 11, 2022
Feb 22, 2022
Jan 27, 2022
Jan 27, 2022
Jan 24, 2022
Jan 24, 2022
Jan 24, 2022
Jan 4, 2022
Jan 4, 2022
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 23, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 22, 2021
Dec 20, 2021
Dec 20, 2021
Dec 20, 2021
Dec 20, 2021
Dec 20, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 16, 2021
Dec 7, 2021
Dec 3, 2021
Dec 3, 2021
Dec 3, 2021
Dec 3, 2021
Dec 3, 2021
Dec 3, 2021
Jul 22, 2021
Jun 2, 2021
Jun 2, 2021
Jun 2, 2021
Jun 2, 2021
Jun 1, 2021
May 28, 2021
May 26, 2021
May 20, 2021
May 20, 2021
May 20, 2021
May 20, 2021
May 20, 2021
May 20, 2021
May 20, 2021
May 20, 2021
May 20, 2021
May 17, 2021
May 17, 2021
May 17, 2021
May 17, 2021
May 17, 2021
Feb 26, 2021
Feb 26, 2021
Feb 23, 2021
Feb 23, 2021
Feb 23, 2021
Feb 23, 2021
Feb 23, 2021
Feb 23, 2021
Feb 23, 2021
Feb 23, 2021
Feb 23, 2021
Oct 23, 2020
Oct 23, 2020
Oct 23, 2020
Oct 15, 2020
Oct 15, 2020
Oct 15, 2020
Oct 14, 2020
Oct 13, 2020
Oct 13, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 7, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Sep 18, 2020
Sep 14, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 14, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 14, 2020
Jan 20, 2020
Dec 12, 2019
Decision to grant a European patent
Search/Exam
Nov 28, 2019
Nov 28, 2019
Nov 28, 2019
Intention to grant (signatures)
Search/Exam
Nov 28, 2019
Text intended for grant (clean copy)
Search/Exam
Nov 28, 2019
Nov 15, 2019
(Electronic) Receipt
Search/Exam
Nov 15, 2019
Amended claims with annotations
Search/Exam
Nov 15, 2019
Claims
Search/Exam
Nov 15, 2019
French translation of claims
Search/Exam
Nov 15, 2019
German translation of the claims
Search/Exam
Nov 15, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 15, 2019
Jul 8, 2019
Jul 8, 2019
Jul 8, 2019
Intention to grant (signatures)
Search/Exam
Jul 8, 2019
Text intended for grant (clean copy)
Search/Exam
Jul 8, 2019
Jun 6, 2019
(Electronic) Receipt
Search/Exam
Jun 6, 2019
Amended description with annotations
Search/Exam
Jun 6, 2019
Description
Search/Exam
Jun 6, 2019
Letter accompanying subsequently filed items
Search/Exam
Jun 6, 2019
May 20, 2019
Annex to the communication
Search/Exam
May 20, 2019
Communication from the Examining Division
Search/Exam
May 13, 2019
Decision to allow further processing
Search/Exam
May 2, 2019
(Electronic) Receipt
Search/Exam
May 2, 2019
Amended claims with annotations
Search/Exam
May 2, 2019
Claims
Search/Exam
May 2, 2019
Letter accompanying subsequently filed items
Search/Exam
May 2, 2019
Request for further processing
Search/Exam
Feb 22, 2019
Jul 12, 2018
Annex to the communication
Search/Exam
Jul 12, 2018
Communication from the Examining Division
Search/Exam
Jul 10, 2018
Decision to allow further processing
Search/Exam
Jun 13, 2018
(Electronic) Receipt
Search/Exam
Jun 13, 2018
Amended claims with annotations
Search/Exam
Jun 13, 2018
Jun 13, 2018
Claims
Search/Exam
Jun 13, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 13, 2018
Request for further processing
Search/Exam
Apr 6, 2018
Jan 5, 2018
Dec 22, 2017
(Electronic) Receipt
Search/Exam
Dec 22, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 22, 2017
Aug 29, 2017
Annex to the communication
Search/Exam
Aug 29, 2017
Communication from the Examining Division
Search/Exam
Aug 23, 2017
Examination started
Search/Exam
Jun 19, 2017
(Electronic) Receipt
Search/Exam
Jun 19, 2017
Jun 19, 2017
Amended claims with annotations
Search/Exam
Jun 19, 2017
Amendments received before examination
Search/Exam
Jun 19, 2017
Letter accompanying subsequently filed items
Search/Exam
Apr 20, 2017
Submission concerning representation
Search/Exam
Feb 8, 2017
Jan 30, 2017
Dec 22, 2016
(Electronic) Receipt
Search/Exam
Dec 22, 2016
Annexes in respect of a client data request
Search/Exam
Dec 22, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 22, 2016
Dec 9, 2016
Dec 5, 2016
Communication to designated inventor
Search/Exam
Dec 5, 2016
Communication to designated inventor
Search/Exam
Dec 5, 2016
Communication to designated inventor
Search/Exam
Dec 5, 2016
Communication to designated inventor
Search/Exam
Dec 5, 2016
Communication to designated inventor
Search/Exam
Dec 5, 2016
Communication to designated inventor
Search/Exam
Dec 5, 2016
Communication to designated inventor
Search/Exam
Dec 5, 2016
Communication to designated inventor
Search/Exam
Dec 5, 2016
Communication to designated inventor
Search/Exam
Dec 5, 2016
Communication to designated inventor
Search/Exam
Nov 15, 2016
Oct 24, 2016
(Electronic) Receipt
Search/Exam
Oct 24, 2016
Request for entry into the European phase
Search/Exam
Sep 9, 2016
Information on entry into European phase
Search/Exam
Nov 23, 2015
Nov 5, 2015
Copy of the international search report
Search/Exam
Nov 5, 2015
Nov 5, 2015
Published international application - A1
Search/Exam
Jul 29, 2015
Annex
PCTISA
Jul 16, 2015
Jul 16, 2015
Jul 16, 2015
May 15, 2015
Abstract
PCTISA
May 15, 2015
Annex
PCTISA
May 15, 2015
Claims
PCTISA
May 15, 2015
Description
PCTISA
May 15, 2015
Drawings
PCTISA
May 15, 2015