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The patent EP3017986 was granted to Proterra on Nov 9, 2022. The application was filed on Jun 26, 2009 under application number EP15183066A. 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 |
|---|---|---|---|
| EBUSCO | Aug 7, 2023 | PATENTWERK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2005132562 |
| DESCRIPTION | US2005214466 |
| DESCRIPTION | US2007284159 |
| DESCRIPTION | US3955657 |
| DESCRIPTION | US6881393 |
| DESCRIPTION | US6890510 |
| DESCRIPTION | US6974566 |
| OPPOSITION | CN1433920 |
| OPPOSITION | CN2619815Y |
| OPPOSITION | CN2761494Y |
| OPPOSITION | DE3909861 |
| OPPOSITION | GB2322604 |
| OPPOSITION | JP2001001670 |
| OPPOSITION | JP2004009986 |
| OPPOSITION | JP2004322819 |
| OPPOSITION | JP2005289252 |
| OPPOSITION | JPH11120975 |
| OPPOSITION | US647251 |
| OPPOSITION | US647475 |
| OPPOSITION | WO2008123543 |
| SEARCH | CN101011941 |
| SEARCH | DE3909861 |
| SEARCH | JPH11120975 |
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
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Jul 8, 2025
Jul 8, 2025
Apr 3, 2025
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Means of redress
OPPO
Apr 3, 2025
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Nov 24, 2023
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Authorisation
OPPO
Nov 16, 2023
Nov 16, 2023
Aug 28, 2023
Aug 28, 2023
Aug 18, 2023
Aug 14, 2023
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Aug 7, 2023
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Aug 7, 2023
Nov 22, 2022
Oct 13, 2022
Decision to grant a European patent
Search/Exam
Oct 7, 2022
Sep 30, 2022
(Electronic) Receipt
Search/Exam
Sep 30, 2022
Annexes in respect of a client data request
Search/Exam
Sep 30, 2022
Filing of the translations of the claims
Search/Exam
Sep 30, 2022
French translation of claims
Search/Exam
Sep 30, 2022
German translation of the claims
Search/Exam
Sep 30, 2022
Letter accompanying subsequently filed items
Search/Exam
May 30, 2022
May 30, 2022
May 30, 2022
Intention to grant (signatures)
Search/Exam
May 30, 2022
Text intended for grant (clean copy)
Search/Exam
May 30, 2022
Aug 25, 2021
(Electronic) Receipt
Search/Exam
Aug 25, 2021
Amended claims with annotations
Search/Exam
Aug 25, 2021
Amended description with annotations
Search/Exam
Aug 25, 2021
Claims
Search/Exam
Aug 25, 2021
Description
Search/Exam
Aug 25, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 25, 2021
Aug 20, 2021
Annex to the communication
Search/Exam
Aug 20, 2021
Apr 15, 2021
Annex to the communication
Search/Exam
Apr 15, 2021
Communication from the Examining Division
Search/Exam
Apr 9, 2021
Examination started
Search/Exam
Jul 16, 2018
Decision to allow further processing
Search/Exam
Jun 18, 2018
(Electronic) Receipt
Search/Exam
Jun 18, 2018
Jun 18, 2018
Amended claims with annotations
Search/Exam
Jun 18, 2018
Jun 18, 2018
Amended description with annotations
Search/Exam
Jun 18, 2018
Amendments received before examination
Search/Exam
Jun 18, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 18, 2018
Mar 6, 2018
(Electronic) Receipt
Search/Exam
Mar 6, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 11, 2017
Aug 7, 2017
Aug 7, 2017
European search opinion
Search/Exam
Aug 7, 2017
European search report
Search/Exam
Aug 7, 2017
Information on Search Strategy
Search/Exam
May 3, 2017
May 3, 2017
Information on Search Strategy
Search/Exam
May 3, 2017
Partial European search report
Search/Exam
May 3, 2017
Aug 3, 2016
Apr 13, 2016
Notification of forthcoming publication
Search/Exam
Feb 17, 2016
Feb 5, 2016
Letter which had not been notified
Search/Exam
Jan 5, 2016
Communication to designated inventor
Search/Exam
Jan 5, 2016
Communication to designated inventor
Search/Exam
Jan 5, 2016
Communication to designated inventor
Search/Exam
Dec 15, 2015
(Electronic) Receipt
Search/Exam
Dec 15, 2015
Claims
Search/Exam
Dec 15, 2015
Designation of inventor
Search/Exam
Dec 15, 2015
Letter accompanying subsequently filed items
Search/Exam
Dec 15, 2015
Letter concerning the inventor
Search/Exam
Oct 15, 2015
Deficiency in designation of inventor
Search/Exam
Oct 15, 2015
Invitation to file claims
Search/Exam
Aug 28, 2015
Abstract
Search/Exam
Aug 28, 2015
Aug 28, 2015
Description
Search/Exam
Aug 28, 2015
Drawings
Search/Exam
Aug 28, 2015
Request for grant of a European patent
Search/Exam
Jan 21, 2010