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Floating Voltage Suppression Method, Device, Inverter Control System And Inverter Thereof

Patent No. EP2963762 (titled "Floating Voltage Suppression Method, Device, Inverter Control System And Inverter Thereof") was filed by Sungrow Power Supply on Jun 29, 2015. The application was issued on Mar 10, 2021.

Patent Summary

Patent Family

Patent Oppositions

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	Dec 10, 2021	KLEINE

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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Dec 16, 2025
Decision of the Board of Appeal
Dec 16, 2025
F3032 Notification(s) of the decision
Dec 16, 2025
F3032 Notification(s) of the decision
Oct 13, 2025
Communication of amended entries concerning the representative
Oct 6, 2025
Letter accompanying subsequently filed items
Oct 6, 2025
Submission concerning change of applicant's representative
Jun 3, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Jun 3, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Jun 2, 2025
F3014 Oral Proceedings: Order cancelling/postponing
May 27, 2025
F3345 Forwarding of submissions to parties
May 26, 2025
(Electronic) Receipt
May 26, 2025
Letter accompanying subsequently filed items
May 26, 2025
Letter dealing with oral proceedings during the appeal procedure
Apr 10, 2025
F3345 Forwarding of submissions to parties
Apr 4, 2025
(Electronic) Receipt
Apr 4, 2025
Letter accompanying subsequently filed items
Apr 4, 2025
Letter dealing with oral proceedings during the appeal procedure
Dec 5, 2024
F3011.2 Oral Proceedings: Summons VICO
Dec 5, 2024
F3011.2 Oral Proceedings: Summons VICO
Dec 5, 2024
F3350 Communication regarding oral proceedings (art. 15 Rules of Procedure of the Boards of Appeal)
Dec 2, 2024
F3010 Oral proceedings: order for summons
Oct 23, 2024
F3303.16 Change of composition of the Board (T)
Aug 13, 2024
F3056 Communication: Change of Board due to the technical nature of the appeal
Aug 13, 2024
F3056 Communication: Change of Board due to the technical nature of the appeal
Feb 28, 2024
Composition of the board (T)
Jan 23, 2024
F3345 Forwarding of submissions to parties
Jan 22, 2024
Communication of amended entries in the Register of European Patents
Jan 22, 2024
F3345 Forwarding of submissions to parties
Jan 22, 2024
F3345 Forwarding of submissions to parties
Jan 11, 2024
(Electronic) Receipt
Jan 11, 2024
Annexes (other than cited documents) regarding appeal procedure
Jan 11, 2024
Letter accompanying subsequently filed items
Jan 11, 2024
Letter relating to Appeal Procedure
Dec 22, 2023
(Electronic) Receipt
Dec 22, 2023
Letter accompanying subsequently filed items
Dec 22, 2023
Reply to appeal
Aug 22, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Aug 14, 2023
(Electronic) Receipt
Aug 14, 2023
Letter accompanying subsequently filed items
Aug 14, 2023
Statement of grounds of appeal
Jun 15, 2023
F3204 Communication of the file number to the parties
Jun 15, 2023
F3204 Communication of the file number to the parties
Jun 9, 2023
(Electronic) Receipt
Jun 9, 2023
Letter accompanying subsequently filed items
Jun 9, 2023
Notice of appeal
Apr 6, 2023
Advice of delivery
Apr 3, 2023
Advice of delivery
Apr 3, 2023
Annex to the communication - opposition
Apr 3, 2023
Decision of the Opposition Division and instruction
Apr 3, 2023
Decision revoking the European patent
Apr 3, 2023
Decision revoking the European patent
Apr 3, 2023
Grounds for the decision (Annex) - opposition
Apr 3, 2023
Means of redress
Apr 3, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 3, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 3, 2023
Provision of a copy of the minutes - opposition procedure
Apr 3, 2023
Provision of a copy of the minutes - opposition procedure
Apr 3, 2023
Scanned annex to a communication - opposition procedure
Apr 3, 2023
Scanned annex to a communication - opposition procedure
Apr 3, 2023
Transmittal of decision / summons - opposition
Apr 3, 2023
Transmittal of decision / summons - opposition
Mar 16, 2023
Information about the result of oral proceedings
Jan 23, 2023
(Electronic) Receipt
Jan 23, 2023
(Electronic) Receipt
Jan 23, 2023
Letter accompanying subsequently filed items
Jan 23, 2023
Request for interpreters during oral proceedings
Jan 19, 2023
Brief communication - Opposition proceedings
Jan 19, 2023
Brief communication - Opposition proceedings
Jan 18, 2023
Brief communication - Opposition proceedings
Jan 16, 2023
(Electronic) Receipt
Jan 16, 2023
Auxiliary request during Opposition procedure
Jan 16, 2023
Auxiliary request during Opposition procedure - 01
Jan 16, 2023
Letter accompanying subsequently filed items
Jan 16, 2023
Main request during Opposition procedure
Jan 16, 2023
Written submission in preparation to/during oral proceedings
Jan 13, 2023
(Electronic) Receipt
Jan 13, 2023
(Electronic) Receipt
Jan 13, 2023
Citation in opposition procedure - 011
Jan 13, 2023
Consolidated list of cited opposition documents
Jan 13, 2023
Letter accompanying subsequently filed items
Jan 13, 2023
Written submission in preparation to/during oral proceedings
Jan 13, 2023
Written submission in preparation to/during oral proceedings
Dec 6, 2022
Document concerning representation
Dec 6, 2022
Letter accompanying subsequently filed items
Nov 30, 2022
Notification concerning the date of oral proceedings
Nov 30, 2022
Notification concerning the date of oral proceedings
Aug 18, 2022
Advice of delivery
Aug 17, 2022
Advice of delivery
Aug 12, 2022
Annex to the communication - opposition
Aug 12, 2022
Information concerning oral proceedings
Aug 12, 2022
Scanned annex to a communication - opposition procedure
Aug 12, 2022
Summons to attend oral proceedings
Aug 12, 2022
Summons to attend oral proceedings
Aug 12, 2022
Transmittal of decision / summons - opposition
Aug 12, 2022
Transmittal of decision / summons - opposition
May 4, 2022
Brief communication - Opposition proceedings
Apr 29, 2022
(Electronic) Receipt
Apr 29, 2022
Letter accompanying subsequently filed items
Apr 29, 2022
Reply of the patent proprietor to the notice(s) of opposition
Jan 3, 2022
Communication of a notice of opposition and request to file observations
Jan 3, 2022
Notice of further oppositions to opponent(s)
Dec 15, 2021
Communication of a notice of opposition - first information to patent proprietor
Dec 10, 2021
(Electronic) Receipt
Dec 10, 2021
Citation in opposition procedure - 001
Dec 10, 2021
Citation in opposition procedure - 002
Dec 10, 2021
Citation in opposition procedure - 003
Dec 10, 2021
Citation in opposition procedure - 004
Dec 10, 2021
Citation in opposition procedure - 005
Dec 10, 2021
Citation in opposition procedure - 006
Dec 10, 2021
Citation in opposition procedure - 007
Dec 10, 2021
Citation in opposition procedure - 007
Dec 10, 2021
Citation in opposition procedure - 008
Dec 10, 2021
Citation in opposition procedure - 009
Dec 10, 2021
Citation in opposition procedure - 010
Dec 10, 2021
Notice of opposition
Dec 10, 2021
Notice of opposition
Mar 22, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 11, 2021
Decision to grant a European patent
Nov 23, 2020
(Electronic) Receipt
Nov 23, 2020
French translation of claims
Nov 23, 2020
German translation of the claims
Nov 23, 2020
Letter accompanying subsequently filed items
Oct 7, 2020
Notice drawing attention to the payment of the renewal fee and additional fee
Jul 30, 2020
Bibliographic data of the European patent application
Jul 30, 2020
Communication about intention to grant a European patent
Jul 30, 2020
Intention to grant (signatures)
Jul 30, 2020
Text intended for grant (clean copy)
Jul 30, 2020
Text intended for grant (version for approval)
Apr 3, 2020
Refund of fees
Mar 25, 2020
(Electronic) Receipt
Mar 25, 2020
Letter concerning fees and payments
Mar 24, 2020
(Electronic) Receipt
Mar 24, 2020
Amended claims with annotations
Mar 24, 2020
Amended description with annotations
Mar 24, 2020
Claims
Mar 24, 2020
Description
Mar 24, 2020
Letter accompanying subsequently filed items
Mar 24, 2020
Reply to communication from the Examining Division
Nov 25, 2019
Annex to the communication
Nov 25, 2019
Communication from the Examining Division
Nov 14, 2019
Examination started
May 24, 2016
(Electronic) Receipt
May 24, 2016
Letter accompanying subsequently filed items
May 24, 2016
Priority search results
May 24, 2016
Reply to invitation to file a copy of priority search results
Apr 15, 2016
Invitation to file a copy of search results(priority)
Mar 31, 2016
(Electronic) Receipt
Mar 31, 2016
Amended claims filed after receipt of (European) search report
Mar 31, 2016
Amended claims with annotations
Mar 31, 2016
Amendments received before examination
Mar 31, 2016
Letter accompanying subsequently filed items
Jan 11, 2016
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Dec 9, 2015
Notification of forthcoming publication
Oct 30, 2015
Communication regarding the transmission of the European search report
Oct 30, 2015
European search opinion
Oct 30, 2015
European search report
Oct 20, 2015
Search started
Sep 16, 2015
Confirmation of receipt of (electronically) transmitted priority document
Sep 1, 2015
Priority document (electronically transmitted)
Aug 21, 2015
Communication to designated inventor
Aug 21, 2015
Communication to designated inventor
Aug 21, 2015
Communication to designated inventor
Aug 21, 2015
Communication to designated inventor
Aug 21, 2015
Communication to designated inventor
Jun 29, 2015
Abstract
Jun 29, 2015
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Jun 29, 2015
Claims
Jun 29, 2015
Description
Jun 29, 2015
Designation of inventor
Jun 29, 2015
Drawings
Jun 29, 2015
Request for grant of a European patent

EP2963762

SUNGROW POWER SUPPLY

Application Number: EP15174376A
Filing Date: Jun 29, 2015
Status: Granted And Under Opposition; Feb 5, 2021
Publication Date: Mar 10, 2021
External Links: Slate, Register , Google Patents