Wind Turbine Blade Including Protective Cover

Patent No. EP3513060 (titled "Wind Turbine Blade Including Protective Cover") was filed by Polytech on Sep 13, 2016. The application was issued on Aug 13, 2025.

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
SIEMENS GAMESA RENEWABLE ENERGY	Dec 11, 2020	SGRE ASSOCIATION
BTB BUNGARTZ BALTZER PARTNERSCHAFT MBB	Dec 8, 2020	-

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

Get instant alerts for new documents

Sep 19, 2025
Communication concerning correction of publication errors in European patent specification
Jun 26, 2025
(Electronic) Receipt
Jun 26, 2025
Letter accompanying subsequently filed items
Jun 26, 2025
Request for correction of the publication
Jul 6, 2023
Decision to maintain the European patent in amended form
Jul 6, 2023
Decision to maintain the European patent in amended form
Jun 30, 2023
Termination of the opposition proceedings with maintenance of patent
Jun 23, 2023
(Electronic) Receipt
Jun 23, 2023
Clean copy of description pages in the opposition procedure
Jun 23, 2023
Druckexemplar in opposition procedure
Jun 23, 2023
Filing of the translation of the amended claims
Jun 23, 2023
French translation of claims
Jun 23, 2023
German translation of the claims
Jun 23, 2023
Letter accompanying subsequently filed items
Apr 4, 2023
Communication to opponent concerning maintenance
Apr 4, 2023
Communication with request to file translations
Mar 29, 2023
Maintenance of the patent with the documents specified in the final decision
Dec 19, 2022
Advice of delivery
Dec 16, 2022
Annex to the communication - opposition
Dec 16, 2022
Decision of the Opposition Division and instruction
Dec 16, 2022
Grounds for the decision (Annex) - opposition
Dec 16, 2022
Interlocutory decision in opposition proceedings
Dec 16, 2022
Interlocutory decision in opposition proceedings
Dec 16, 2022
Means of redress
Dec 16, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 16, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 16, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Dec 16, 2022
OPPODREX with handwritten amendments
Dec 16, 2022
Provision of a copy of the minutes - opposition procedure
Dec 16, 2022
Provision of a copy of the minutes - opposition procedure
Dec 16, 2022
Scanned annex to a communication - opposition procedure
Dec 16, 2022
Transmittal of decision / summons - opposition
Dec 16, 2022
Transmittal of decision / summons - opposition
Sep 22, 2022
Information about the result of oral proceedings
Aug 29, 2022
Brief communication - Opposition proceedings
Aug 24, 2022
(Electronic) Receipt
Aug 24, 2022
Auxiliary request during Opposition procedure
Aug 24, 2022
Auxiliary request during Opposition procedure
Aug 24, 2022
Auxiliary request during Opposition procedure
Aug 24, 2022
Auxiliary request during Opposition procedure
Aug 24, 2022
Auxiliary request during Opposition procedure - 01
Aug 24, 2022
Auxiliary request during Opposition procedure - 02
Aug 24, 2022
Auxiliary request during Opposition procedure - 03
Aug 24, 2022
Auxiliary request during Opposition procedure - 04
Aug 24, 2022
Letter accompanying subsequently filed items
Aug 24, 2022
Written submission in preparation to/during oral proceedings
Aug 12, 2022
Brief communication - Opposition proceedings
Aug 9, 2022
(Electronic) Receipt
Aug 9, 2022
Letter accompanying subsequently filed items
Aug 9, 2022
Request for interpreters during oral proceedings
Aug 8, 2022
Brief communication - Opposition proceedings
Aug 8, 2022
Brief communication - Opposition proceedings
Aug 5, 2022
Communication of amended entries
Jul 29, 2022
Brief communication - Opposition proceedings
Jul 27, 2022
Brief communication - Opposition proceedings
Jul 27, 2022
Letter accompanying subsequently filed items
Jul 27, 2022
Request for change of opponent's representative
Jul 22, 2022
(Electronic) Receipt
Jul 22, 2022
(Electronic) Receipt
Jul 22, 2022
Letter accompanying subsequently filed items
Jul 22, 2022
Letter accompanying subsequently filed items
Jul 22, 2022
Request for interpreters during oral proceedings
Jul 22, 2022
Written submission in preparation to/during oral proceedings
Jul 13, 2022
Brief communication - Opposition proceedings
Jul 5, 2022
(Electronic) Receipt
Jul 5, 2022
Auxiliary request during Opposition procedure
Jul 5, 2022
Auxiliary request during Opposition procedure
Jul 5, 2022
Auxiliary request during Opposition procedure
Jul 5, 2022
Auxiliary request during Opposition procedure
Jul 5, 2022
Auxiliary request during Opposition procedure - 01
Jul 5, 2022
Auxiliary request during Opposition procedure - 02
Jul 5, 2022
Auxiliary request during Opposition procedure - 03
Jul 5, 2022
Auxiliary request during Opposition procedure - 04
Jul 5, 2022
Letter accompanying subsequently filed items
Jul 5, 2022
Written submission in preparation to/during oral proceedings
May 10, 2022
Brief communication - Opposition proceedings
May 10, 2022
Communication confirming withdrawal from representation
May 10, 2022
Communication of amended entries concerning the representative
May 10, 2022
Notification concerning the date of oral proceedings
May 3, 2022
Notification concerning the date of oral proceedings
May 3, 2022
Notification concerning the date of oral proceedings
Apr 29, 2022
(Electronic) Receipt
Apr 29, 2022
Letter accompanying subsequently filed items
Apr 29, 2022
Request for change of opponent's representative
Oct 18, 2021
Advice of delivery
Oct 14, 2021
(Electronic) Receipt
Oct 14, 2021
Advice of delivery
Oct 14, 2021
Letter accompanying subsequently filed items
Oct 14, 2021
Summons to attend oral proceedings
Oct 14, 2021
Summons to attend oral proceedings
Oct 14, 2021
Transmittal of decision / summons - opposition
Oct 14, 2021
Transmittal of decision / summons - opposition
Oct 13, 2021
Notification concerning the date of oral proceedings
Oct 12, 2021
Notification concerning the date of oral proceedings
Sep 27, 2021
Brief communication - Opposition proceedings
Sep 22, 2021
(Electronic) Receipt
Sep 22, 2021
Letter accompanying subsequently filed items
Sep 22, 2021
Oral proceedings: Request for postponement
Sep 14, 2021
(Electronic) Receipt
Sep 14, 2021
Advice of delivery
Sep 14, 2021
Advice of delivery
Sep 14, 2021
Letter accompanying subsequently filed items
Sep 8, 2021
Annex to the communication - opposition
Sep 8, 2021
Information concerning oral proceedings
Sep 8, 2021
Summons to attend oral proceedings
Sep 8, 2021
Summons to attend oral proceedings
Sep 8, 2021
Transmittal of decision / summons - opposition
Sep 8, 2021
Transmittal of decision / summons - opposition
Aug 26, 2021
Brief communication - Opposition proceedings
Aug 12, 2021
(Electronic) Receipt
Aug 12, 2021
Letter accompanying subsequently filed items
Aug 12, 2021
Reply from the opponent to submission of proprietor
May 19, 2021
Brief communication - Opposition proceedings
May 12, 2021
(Electronic) Receipt
May 12, 2021
Letter accompanying subsequently filed items
May 12, 2021
Reply of the patent proprietor to the notice(s) of opposition
Feb 1, 2021
Brief communication - Opposition proceedings
Feb 1, 2021
Brief communication - Opposition proceedings
Feb 1, 2021
Brief communication - Opposition proceedings
Jan 15, 2021
(Electronic) Receipt
Jan 15, 2021
Letter accompanying subsequently filed items
Jan 15, 2021
Withdrawal of an opposition
Jan 12, 2021
Communication of a notice of opposition and request to file observations
Jan 12, 2021
Notice of further oppositions to opponent(s)
Jan 12, 2021
Notice of further oppositions to opponent(s)
Dec 18, 2020
Communication of a notice of opposition - first information to patent proprietor
Dec 14, 2020
Communication of a notice of opposition - first information to patent proprietor
Dec 11, 2020
(Electronic) Receipt
Dec 11, 2020
Citation in opposition procedure
Dec 11, 2020
Citation in opposition procedure - 014
Dec 11, 2020
Citation in opposition procedure - 015
Dec 11, 2020
Citation in opposition procedure - 016
Dec 11, 2020
Citation in opposition procedure - 017
Dec 11, 2020
Citation in opposition procedure - 017
Dec 11, 2020
Citation in opposition procedure - 018
Dec 11, 2020
Citation in opposition procedure - 019
Dec 11, 2020
Citation in opposition procedure - 020
Dec 11, 2020
Citation in opposition procedure - 021
Dec 11, 2020
Citation in opposition procedure - 022
Dec 11, 2020
Citation in opposition procedure - 023
Dec 11, 2020
Citation in opposition procedure - 024
Dec 11, 2020
Citation in opposition procedure - 025
Dec 11, 2020
Citation in opposition procedure - 026
Dec 11, 2020
Citation in opposition procedure - 027
Dec 11, 2020
Citation in opposition procedure - 028
Dec 11, 2020
Citation in opposition procedure - 029
Dec 11, 2020
Consolidated list of cited opposition documents
Dec 11, 2020
Notice of opposition
Dec 11, 2020
Notice of opposition
Dec 8, 2020
(Electronic) Receipt
Dec 8, 2020
Citation in opposition procedure - 001
Dec 8, 2020
Citation in opposition procedure - 002
Dec 8, 2020
Citation in opposition procedure - 003
Dec 8, 2020
Citation in opposition procedure - 004
Dec 8, 2020
Citation in opposition procedure - 005
Dec 8, 2020
Citation in opposition procedure - 006
Dec 8, 2020
Citation in opposition procedure - 007
Dec 8, 2020
Citation in opposition procedure - 008
Dec 8, 2020
Citation in opposition procedure - 009
Dec 8, 2020
Citation in opposition procedure - 010
Dec 8, 2020
Citation in opposition procedure - 011
Dec 8, 2020
Citation in opposition procedure - 012
Dec 8, 2020
Citation in opposition procedure - 013
Dec 8, 2020
Notice of opposition
Dec 8, 2020
Notice of opposition
Apr 17, 2020
Communication of amended entries concerning the representative
Apr 16, 2020
Communication confirming withdrawal from representation
Apr 10, 2020
(Electronic) Receipt
Apr 10, 2020
Letter accompanying subsequently filed items
Apr 10, 2020
Submission concerning change of proprietor's representative
Apr 9, 2020
(Electronic) Receipt
Apr 9, 2020
Letter accompanying subsequently filed items
Apr 9, 2020
Submission concerning change of proprietor's representative
Mar 23, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 13, 2020
Decision to grant a European patent
Jan 28, 2020
(Electronic) Receipt
Jan 28, 2020
Filing of the translations of the claims
Jan 28, 2020
French translation of claims
Jan 28, 2020
German translation of the claims
Jan 28, 2020
Letter accompanying subsequently filed items
Jan 3, 2020
Bibliographic data of the European patent application
Jan 3, 2020
Communication about intention to grant a European patent
Jan 3, 2020
Intention to grant (signatures)
Jan 3, 2020
Text intended for grant (clean copy)
Jan 3, 2020
Text intended for grant (version for approval)
Nov 29, 2019
Examination started
Nov 26, 2019
Brief communication to applicant/representative
Jun 26, 2019
Notification on forthcoming publication of bibliographic data
May 8, 2019
(Electronic) Receipt
May 8, 2019
Amendments received before examination
May 8, 2019
Letter accompanying subsequently filed items
Apr 23, 2019
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Apr 23, 2019
Communication to designated inventor
Apr 23, 2019
Communication to designated inventor
Mar 21, 2019
Copy of the international preliminary examination report
Mar 21, 2019
Translation of the annexes to the International Preliminary Examination Report
Mar 20, 2019
Copy of the international preliminary examination report
Mar 13, 2019
Notification of the recording of a change
Mar 13, 2019
Notification of the recording of a change
Mar 11, 2019
Notification of the recording of a change
Mar 11, 2019
Notification of the recording of a change
Feb 21, 2019
Communication confirming withdrawal from representation
Feb 21, 2019
Communication of amended entries concerning the representative
Feb 7, 2019
(Electronic) Receipt
Feb 7, 2019
Letter accompanying subsequently filed items
Feb 7, 2019
Submission concerning change of applicant's representative
Feb 4, 2019
(Electronic) Receipt
Feb 4, 2019
Submission concerning change of applicant's representative
Jan 25, 2019
Information on entry into European phase
Jan 18, 2019
(Electronic) Receipt
Jan 18, 2019
Request for entry into the European phase
Aug 8, 2018
Annex to International preliminary examination report
Aug 8, 2018
International preliminary examination report
Aug 8, 2018
International preliminary examination report - free text sheet
Aug 8, 2018
International preliminary examination report - points I-VIII
Aug 8, 2018
Transmittal of International Preliminary Examination Report
Mar 27, 2018
Notification of election of EPO
Mar 22, 2018
Copy of the international search report
Mar 22, 2018
Published international application - A1
Sep 25, 2017
Amendments of documents (Article 19 PCT) (without attachments)
Sep 11, 2017
Notification of receipt of demand
Sep 6, 2017
PCT demand form
Sep 5, 2017
(Electronic) Receipt
Sep 5, 2017
PCT(IPEA): Amended sheet - claims
Sep 5, 2017
PCT(IPEA): Amended sheet - claims
Sep 5, 2017
Payment of fees and costs
Sep 5, 2017
Reply to International Search Opinion
Jun 13, 2017
ISR: cited documents
Jun 12, 2017
Written opinion of the ISA, boxes No. I to VIII
Jun 12, 2017
Written opinion of the ISA, cover sheet
Jun 12, 2017
Written opinion of the ISA, supplemental box
Oct 20, 2016
Notification of receipt of Search copy
Oct 6, 2016
Abstract
Oct 6, 2016
Claims
Oct 6, 2016
Description
Oct 6, 2016
Drawings
Oct 6, 2016
Request form for international application (copy for ISA/EP)

EP3513060

POLYTECH

Application Number: EP16778106A
Filing Date: Sep 13, 2016
Status: Patent Maintained As Amended; Jun 30, 2023
Publication Date: Aug 13, 2025
External Links: Slate, Register , Google Patents

IP Verse

Wind Turbine Blade Including Protective Cover

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP3513060