The patent EP2944944 was granted to General Electric on Oct 20, 2021. The application was originally filed on May 6, 2015 under application number EP15166609A. 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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2010091278 |
| DESCRIPTION | US2012307241 |
| EXAMINATION | DE102009025147 |
| EXAMINATION | US2007045542 |
| EXAMINATION | US2012033220 |
| EXAMINATION | WO2014109126 |
| OPPOSITION | DE4443016 |
| OPPOSITION | EP1616207 |
| OPPOSITION | EP2320214 |
| OPPOSITION | EP2573529 |
| OPPOSITION | EP2604999 |
| SEARCH | JP2007309800 |
| SEARCH | JP2012026918 |
| SEARCH | JP2013117517 |
| SEARCH | US2008144677 |
| SEARCH | US2012307241 |
| SEARCH | US2013056626 |
| SEARCH | US2013292571 |
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text |
|---|---|
| OPPOSITION | - Staab Joachim, "Industrielle Gasanalyse", Oldenbourg, (19940101), pages 190 - 194, XP055950360 |
| OPPOSITION | - Zogg H., Arnold M., Felder F., Rahim M., Ebneter C., Zasavitskiy I., Quack N., Blunier S., Dual J., "Epitaxial Lead Chalcogenides on Si for Mid-IR Detectors and Emitters Including Cavities", Journal of Electronic Materials, Springer US, New York, New York, (20080901), vol. 37, no. 9, doi:10.1007/s11664-008-0429-0, ISSN 0361-5235, pages 1497 - 1503, XP055950357 |
Get a free citation report including examiner, opposition, and international search citations.
Get Citation ReportThe 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 22, 2025
Aug 20, 2025
Aug 4, 2025
Annexes in respect of a client data request
Search/Exam
Aug 4, 2025
Jun 26, 2025
Jun 26, 2025
Jun 26, 2025
Jun 23, 2025
Dec 11, 2024
Nov 11, 2024
Nov 4, 2024
(Electronic) Receipt
Appeal
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Nov 4, 2024
Reply to appeal
Appeal
Jul 3, 2024
Jun 28, 2024
(Electronic) Receipt
Appeal
Jun 28, 2024
Jun 28, 2024
May 3, 2024
May 3, 2024
Apr 26, 2024
(Electronic) Receipt
Appeal
Apr 26, 2024
Apr 26, 2024
Notice of appeal
Appeal
Mar 1, 2024
Mar 1, 2024
Mar 1, 2024
Mar 1, 2024
Mar 1, 2024
Mar 1, 2024
Mar 1, 2024
Mar 1, 2024
Means of redress
OPPO
Mar 1, 2024
Mar 1, 2024
Mar 1, 2024
Mar 1, 2024
Mar 1, 2024
Feb 26, 2024
Feb 26, 2024
Feb 26, 2024
Feb 20, 2024
Feb 20, 2024
Authorisation
OPPO
Feb 20, 2024
Authorisation
OPPO
Feb 20, 2024
Authorisation
OPPO
Feb 20, 2024
Feb 20, 2024
Feb 20, 2024
Jan 18, 2024
Jan 17, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Jan 12, 2024
Dec 22, 2023
Nov 21, 2023
Nov 16, 2023
Nov 16, 2023
Nov 16, 2023
Nov 13, 2023
Nov 9, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 3, 2023
Nov 3, 2023
Nov 3, 2023
Apr 14, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Apr 12, 2023
Dec 19, 2022
Dec 14, 2022
Dec 14, 2022
Dec 14, 2022
Sep 26, 2022
Sep 26, 2022
Sep 26, 2022
Sep 23, 2022
Sep 20, 2022
Aug 11, 2022
Aug 10, 2022
Aug 10, 2022
Aug 3, 2022
Aug 3, 2022
Aug 3, 2022
Aug 3, 2022
Aug 3, 2022
Aug 3, 2022
Aug 3, 2022
Aug 3, 2022
Aug 1, 2022
Aug 1, 2022
Aug 1, 2022
Jul 25, 2022
Jul 25, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Jul 19, 2022
Nov 3, 2021
Sep 23, 2021
Decision to grant a European patent
Search/Exam
Sep 14, 2021
(Electronic) Receipt
Search/Exam
Sep 14, 2021
Filing of the translations of the claims
Search/Exam
Sep 14, 2021
French translation of claims
Search/Exam
Sep 14, 2021
German translation of the claims
Search/Exam
Jun 24, 2021
(Electronic) Receipt
Search/Exam
Jun 24, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 24, 2021
Jun 23, 2021
Jun 23, 2021
Jun 16, 2021
May 31, 2021
May 31, 2021
May 31, 2021
Intention to grant (signatures)
Search/Exam
May 31, 2021
Text intended for grant (clean copy)
Search/Exam
May 31, 2021
Apr 15, 2021
(Electronic) Receipt
Search/Exam
Apr 15, 2021
Amended claims with annotations
Search/Exam
Apr 15, 2021
Claims
Search/Exam
Apr 15, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 15, 2021
Feb 16, 2021
Annex to a communication
Search/Exam
Feb 16, 2021
Annex to the communication
Search/Exam
Feb 16, 2021
Feb 16, 2021
Sep 27, 2019
(Electronic) Receipt
Search/Exam
Sep 27, 2019
Amended claims with annotations
Search/Exam
Sep 27, 2019
Amended description with annotations
Search/Exam
Sep 27, 2019
Claims
Search/Exam
Sep 27, 2019
Description
Search/Exam
Sep 27, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 27, 2019
Aug 12, 2019
Submission concerning representation
Search/Exam
May 21, 2019
Annex to the communication
Search/Exam
May 21, 2019
Communication from the Examining Division
Search/Exam
May 21, 2019
May 16, 2019
May 16, 2019
May 13, 2019
Examination started
Search/Exam
May 9, 2019
Feb 7, 2019
Jan 24, 2019
Jul 8, 2016
(Electronic) Receipt
Search/Exam
Jul 8, 2016
Letter accompanying subsequently filed items
Search/Exam
Jul 8, 2016
Jul 1, 2016
Jun 1, 2016
May 25, 2016
May 18, 2016
May 18, 2016
Amended claims with annotations
Search/Exam
May 18, 2016
May 18, 2016
Amended description with annotations
Search/Exam
May 18, 2016
Amendments received before examination
Search/Exam
May 18, 2016
Letter accompanying subsequently filed items
Search/Exam
Apr 26, 2016
CDS Clean up - amended applicant details
Search/Exam
Nov 23, 2015
Oct 21, 2015
Notification of forthcoming publication
Search/Exam
Oct 16, 2015
Oct 16, 2015
European search opinion
Search/Exam
Oct 16, 2015
European search report
Search/Exam
Oct 5, 2015
Search started
Search/Exam
Sep 14, 2015
Letter accompanying subsequently filed items
Search/Exam
Sep 14, 2015
Priority document
Search/Exam
Aug 24, 2015
Aug 18, 2015
Letter which had not been notified
Search/Exam
Jul 31, 2015
Communication to designated inventor
Search/Exam
Jul 31, 2015
Communication to designated inventor
Search/Exam
Jul 31, 2015
Communication to designated inventor
Search/Exam
Jul 31, 2015
Communication to designated inventor
Search/Exam
Jul 31, 2015
Communication to designated inventor
Search/Exam
Jul 31, 2015
Communication to designated inventor
Search/Exam
Jul 31, 2015
Communication to designated inventor
Search/Exam
Jul 31, 2015
Communication to designated inventor
Search/Exam
May 6, 2015
Abstract
Search/Exam
May 6, 2015
May 6, 2015
Claims
Search/Exam
May 6, 2015
Description
Search/Exam
May 6, 2015
Designation of inventor
Search/Exam
May 6, 2015
Drawings
Search/Exam
May 6, 2015
Request for grant of a European patent
Search/Exam