Five-Level Pv Inverter Based On A Multi-State Switching Cell

Patent No. EP2959570 (titled "Five-Level Pv Inverter Based On A Multi-State Switching Cell") was filed by Huawei on Jun 4, 2013. The application was issued on Feb 3, 2021.

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
SMA SOLAR TECHNOLOGY	Nov 3, 2021	-

Dossier Documents

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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Feb 9, 2023
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Feb 6, 2023
Termination of the opposition proceedings with maintenance of patent
Oct 27, 2022
Advice of delivery
Oct 26, 2022
Decision to discontinue the opposition proceedings
Oct 26, 2022
Transmittal of decision / summons - opposition
Jul 6, 2022
Brief communication - Opposition proceedings
Jul 6, 2022
Brief communication - Opposition proceedings
Jun 30, 2022
(Electronic) Receipt
Jun 30, 2022
Letter accompanying subsequently filed items
Jun 30, 2022
Withdrawal of an opposition
Mar 30, 2022
Brief communication - Opposition proceedings
Mar 25, 2022
(Electronic) Receipt
Mar 25, 2022
Letter accompanying subsequently filed items
Mar 25, 2022
Reply of the patent proprietor to the notice(s) of opposition
Dec 2, 2021
Brief communication - Opposition proceedings
Dec 2, 2021
Brief communication - Opposition proceedings
Dec 2, 2021
Communication confirming withdrawal from representation
Dec 2, 2021
Communication of amended entries concerning the representative
Dec 1, 2021
(Electronic) Receipt
Dec 1, 2021
Letter accompanying subsequently filed items
Dec 1, 2021
Submission concerning change of proprietor's representative
Nov 29, 2021
(Electronic) Receipt
Nov 29, 2021
Letter accompanying subsequently filed items
Nov 29, 2021
Submission concerning change of proprietor's representative
Nov 17, 2021
Communication of a notice of opposition and request to file observations
Nov 17, 2021
Notice of further oppositions to opponent(s)
Nov 15, 2021
Communication of the registration of a transfer or change of name and/or address
Nov 15, 2021
Consolidated list of cited opposition documents
Nov 10, 2021
Communication of a notice of opposition - first information to patent proprietor
Nov 5, 2021
Annexes in respect of a client data request
Nov 5, 2021
Letter accompanying subsequently filed items
Nov 5, 2021
Submission concerning a transfer of rights (proprietor)
Nov 4, 2021
Indication of deficiencies in a request for registering a transfer of rights and invitation to correct them
Nov 3, 2021
(Electronic) Receipt
Nov 3, 2021
Citation in opposition procedure - 001
Nov 3, 2021
Citation in opposition procedure - 002
Nov 3, 2021
Citation in opposition procedure - 003
Nov 3, 2021
Citation in opposition procedure - 004
Nov 3, 2021
Citation in opposition procedure - 005
Nov 3, 2021
Citation in opposition procedure - 006
Nov 3, 2021
Citation in opposition procedure - 007
Nov 3, 2021
Citation in opposition procedure - 008
Nov 3, 2021
Citation in opposition procedure - 008
Nov 3, 2021
Citation in opposition procedure - 009
Nov 3, 2021
Citation in opposition procedure - 010
Nov 3, 2021
Citation in opposition procedure - 011
Nov 3, 2021
Citation in opposition procedure - 012
Nov 3, 2021
Notice of opposition
Nov 3, 2021
Notice of opposition
Nov 3, 2021
Published international application - A1
Oct 25, 2021
Letter accompanying subsequently filed items
Oct 25, 2021
Submission concerning a transfer of rights (proprietor)
Feb 15, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jan 14, 2021
Decision to grant a European patent
Dec 21, 2020
(Electronic) Receipt
Dec 21, 2020
French translation of claims
Dec 21, 2020
German translation of the claims
Dec 21, 2020
Letter accompanying subsequently filed items
Sep 16, 2020
Intention to grant (signatures)
Sep 15, 2020
Bibliographic data of the European patent application
Sep 15, 2020
Communication about intention to grant a European patent
Sep 15, 2020
Text intended for grant (clean copy)
Sep 15, 2020
Text intended for grant (version for approval)
Jul 1, 2020
(Electronic) Receipt
Jul 1, 2020
Amended claims with annotations
Jul 1, 2020
Amended description with annotations
Jul 1, 2020
Claims
Jul 1, 2020
Description
Jul 1, 2020
Drawings
Jul 1, 2020
Letter accompanying subsequently filed items
Jul 1, 2020
Reply to communication from the Examining Division
Jun 8, 2020
(Electronic) Receipt
Jun 8, 2020
Letter accompanying subsequently filed items
Apr 7, 2020
Communication concerning the filing of a power of attorney
Apr 7, 2020
Communication of amended entries concerning the representative
Apr 6, 2020
Confirmation of revocation of automatic debit order
Apr 2, 2020
(Electronic) Receipt
Apr 2, 2020
Letter accompanying subsequently filed items
Apr 2, 2020
Submission concerning change of applicant's representative
Apr 1, 2020
(Electronic) Receipt
Apr 1, 2020
Letter accompanying subsequently filed items
Apr 1, 2020
Letter relating to the automatic debiting procedure
Feb 21, 2020
Annex to the communication
Feb 21, 2020
Communication from the Examining Division
Feb 10, 2020
Examination started
Jul 18, 2018
Submission concerning representation
Apr 11, 2016
(Electronic) Receipt
Apr 11, 2016
Amended claims filed after receipt of (European) search report
Apr 11, 2016
Amended claims with annotations
Apr 11, 2016
Amendments received before examination
Apr 11, 2016
Letter accompanying subsequently filed items
Jan 11, 2016
Communication to designated inventor
Jan 4, 2016
Copy of the international preliminary report on patentability
Dec 2, 2015
Notification on forthcoming publication of bibliographic data
Nov 13, 2015
(Electronic) Receipt
Nov 13, 2015
Letter accompanying subsequently filed items
Nov 13, 2015
Letter concerning the inventor
Oct 20, 2015
Letter relating to the automatic debiting procedure
Oct 14, 2015
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Sep 24, 2015
(Electronic) Receipt
Sep 24, 2015
Request for entry into the European phase
Feb 17, 2015
CDS Clean up - amended applicant details
Dec 11, 2014
Copy of the international search report
Dec 11, 2014
Published international application - A1
Sep 22, 2014
Notification of the recording of a change
Jan 30, 2014
Written opinion of the ISA, boxes No. I to VIII
Jan 30, 2014
Written opinion of the ISA, cover sheet
Jan 30, 2014
Written opinion of the ISA, supplemental box
Jun 4, 2013
(Electronic) Receipt
Jun 4, 2013
Abstract
Jun 4, 2013
Claims
Jun 4, 2013
Description
Jun 4, 2013
Drawings

EP2959570

HUAWEI

Application Number: EP13727136A
Filing Date: Jun 4, 2013
Status: Granted And Under Opposition; Jan 1, 2021
Publication Date: Feb 3, 2021
External Links: Slate, Register , Google Patents

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Five-Level Pv Inverter Based On A Multi-State Switching Cell

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Dossier Documents

EP2959570