The weekly litigation news digest is live. Subscribe now

IP Verse

Reduced Distortion Spectacle Lens - EP3526641

The patent EP3526641 was granted to Carl Zeiss on Mar 18, 2020. The application was filed on Oct 13, 2017 under application number EP17788090A. The patent is currently recorded with a legal status of "Revoked".

EP3526641

CARL ZEISS

Application Number: EP17788090A
Filing Date: Oct 13, 2017
Status: Revoked; Feb 3, 2023
Publication Date: Mar 18, 2020
External Links: Slate, Register, Google Patents

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	Opposition Status
RODENSTOCK	Dec 18, 2020	MULLER BORE & PARTNER PATENTANWALTE PARTG MBB	-

Patent Citations (23) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation Phase	Publication Number
DESCRIPTION	US3960442
DESCRIPTION	US6142624
INTERNATIONAL-SEARCH-REPORT	EP1031063
INTERNATIONAL-SEARCH-REPORT	EP2246729
INTERNATIONAL-SEARCH-REPORT	US2003169397
INTERNATIONAL-SEARCH-REPORT	US3960442
INTERNATIONAL-SEARCH-REPORT	US6142624
INTERNATIONAL-SEARCH-REPORT	WO2013081592
INTERNATIONAL-SEARCH-REPORT	WO9848315
OPPOSITION	EP0900403
OPPOSITION	EP0988574
OPPOSITION	EP1656581
OPPOSITION	EP2246729
OPPOSITION	US2003169397
OPPOSITION	US2006274258
OPPOSITION	US3960442
OPPOSITION	US6142624
OPPOSITION	WO2005019904
OPPOSITION	WO2013081592
OPPOSITION	WO9735224
OPPOSITION	WO9848315
OPPOSITION	WO9904307
OPPOSITION	WO9963392

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

Feb 7, 2023
Communication to the parties concerning the termination of the opposition proceedings (opponent)
OPPO
Feb 7, 2023
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
OPPO
Feb 2, 2023
Termination of the opposition proceedings with revocation of patent
OPPO
Oct 21, 2022
Advice of delivery
OPPO
Oct 19, 2022
Advice of delivery
OPPO
Oct 18, 2022
Annex to the communication - opposition
OPPO
Oct 18, 2022
Consolidated list of cited opposition documents
OPPO
Oct 18, 2022
Decision revoking the European patent
OPPO
Oct 18, 2022
Decision revoking the European patent
OPPO
Oct 18, 2022
Grounds for the decision (Annex) - opposition
OPPO
Oct 18, 2022
Means of redress
OPPO
Oct 18, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
OPPO
Oct 18, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
OPPO
Oct 18, 2022
Provision of a copy of the minutes - opposition procedure
OPPO
Oct 18, 2022
Provision of a copy of the minutes - opposition procedure
OPPO
Oct 18, 2022
Transmittal of decision / summons - opposition
OPPO
Oct 18, 2022
Transmittal of decision / summons - opposition
OPPO
Jul 1, 2022
Brief communication - Opposition proceedings
OPPO
Jun 29, 2022
Information about the result of oral proceedings
OPPO
Jun 24, 2022
(Electronic) Receipt
OPPO
Jun 24, 2022
Letter accompanying subsequently filed items
OPPO
Jun 24, 2022
Oral proceedings: reply to date proposed
OPPO
May 10, 2022
Brief communication - Opposition proceedings
OPPO
May 9, 2022
Brief communication - Opposition proceedings
OPPO
May 9, 2022
Brief communication - Opposition proceedings
OPPO
May 6, 2022
Brief communication - Opposition proceedings
OPPO
May 2, 2022
(Electronic) Receipt
OPPO
May 2, 2022
Letter accompanying subsequently filed items
OPPO
May 2, 2022
Oral proceedings: reply to date proposed
OPPO
Apr 29, 2022
(Electronic) Receipt
OPPO
Apr 29, 2022
(Electronic) Receipt
OPPO
Apr 29, 2022
Auxiliary request during Opposition procedure
OPPO
Apr 29, 2022
Auxiliary request during Opposition procedure
OPPO
Apr 29, 2022
Auxiliary request during Opposition procedure
OPPO
Apr 29, 2022
Auxiliary request during Opposition procedure
OPPO
Apr 29, 2022
Auxiliary request during Opposition procedure - 01
OPPO
Apr 29, 2022
Auxiliary request during Opposition procedure - 02
OPPO
Apr 29, 2022
Auxiliary request during Opposition procedure - 03
OPPO
Apr 29, 2022
Auxiliary request during Opposition procedure - 04
OPPO
Apr 29, 2022
Letter accompanying subsequently filed items
OPPO
Apr 29, 2022
Letter accompanying subsequently filed items
OPPO
Apr 29, 2022
Main request during Opposition procedure
OPPO
Apr 29, 2022
Main request during Opposition procedure
OPPO
Apr 29, 2022
Request for interpreters during oral proceedings
OPPO
Apr 29, 2022
Written submission in preparation to/during oral proceedings
OPPO
Apr 27, 2022
(Electronic) Receipt
OPPO
Apr 27, 2022
Letter accompanying subsequently filed items
OPPO
Apr 27, 2022
Written submission in preparation to/during oral proceedings
OPPO
Apr 21, 2022
Notification concerning the date of oral proceedings
OPPO
Apr 21, 2022
Notification concerning the date of oral proceedings
OPPO
Feb 18, 2022
(Electronic) Receipt
OPPO
Feb 18, 2022
Letter accompanying subsequently filed items
OPPO
Oct 13, 2021
Advice of delivery
OPPO
Oct 11, 2021
Advice of delivery
OPPO
Oct 7, 2021
Annex to the communication - opposition
OPPO
Oct 7, 2021
Information concerning oral proceedings
OPPO
Oct 7, 2021
Summons to attend oral proceedings
OPPO
Oct 7, 2021
Summons to attend oral proceedings
OPPO
Oct 7, 2021
Transmittal of decision / summons - opposition
OPPO
Oct 7, 2021
Transmittal of decision / summons - opposition
OPPO
Jun 7, 2021
Brief communication - Opposition proceedings
OPPO
Jun 1, 2021
(Electronic) Receipt
OPPO
Jun 1, 2021
Auxiliary request during Opposition procedure - 01
OPPO
Jun 1, 2021
Auxiliary request during Opposition procedure - 02
OPPO
Jun 1, 2021
Auxiliary request during Opposition procedure - 03
OPPO
Jun 1, 2021
Auxiliary request during Opposition procedure - 04
OPPO
Jun 1, 2021
Letter accompanying subsequently filed items
OPPO
Jun 1, 2021
Main request during Opposition procedure
OPPO
Jun 1, 2021
Reply of the patent proprietor to the notice(s) of opposition
OPPO
Jan 22, 2021
Communication of a notice of opposition and request to file observations
OPPO
Jan 22, 2021
Notice of further oppositions to opponent(s)
OPPO
Jan 12, 2021
Communication of a notice of opposition - first information to patent proprietor
OPPO
Dec 18, 2020
Any annexes (other than citation) to an opposition letter
OPPO
Dec 18, 2020
Citation in opposition procedure - 001
OPPO
Dec 18, 2020
Citation in opposition procedure - 001
OPPO
Dec 18, 2020
Citation in opposition procedure - 002
OPPO
Dec 18, 2020
Citation in opposition procedure - 002
OPPO
Dec 18, 2020
Citation in opposition procedure - 003
OPPO
Dec 18, 2020
Citation in opposition procedure - 003
OPPO
Dec 18, 2020
Citation in opposition procedure - 004
OPPO
Dec 18, 2020
Citation in opposition procedure - 005
OPPO
Dec 18, 2020
Citation in opposition procedure - 006
OPPO
Dec 18, 2020
Citation in opposition procedure - 007
OPPO
Dec 18, 2020
Citation in opposition procedure - 008
OPPO
Dec 18, 2020
Citation in opposition procedure - 009
OPPO
Dec 18, 2020
Citation in opposition procedure - 010
OPPO
Dec 18, 2020
Citation in opposition procedure - 011
OPPO
Dec 18, 2020
Citation in opposition procedure - 012
OPPO
Dec 18, 2020
Citation in opposition procedure - 013
OPPO
Dec 18, 2020
Citation in opposition procedure - 014
OPPO
Dec 18, 2020
Citation in opposition procedure - 015
OPPO
Dec 18, 2020
Citation in opposition procedure - 016
OPPO
Dec 18, 2020
Citation in opposition procedure - 017
OPPO
Dec 18, 2020
Citation in opposition procedure - 018
OPPO
Dec 18, 2020
Citation in opposition procedure - 019
OPPO
Dec 18, 2020
Citation in opposition procedure - 020
OPPO
Dec 18, 2020
Citation in opposition procedure - 021
OPPO
Dec 18, 2020
Citation in opposition procedure - 022
OPPO
Dec 18, 2020
Citation in opposition procedure - 023
OPPO
Dec 18, 2020
Citation in opposition procedure - 024
OPPO
Dec 18, 2020
Citation in opposition procedure - 025
OPPO
Dec 18, 2020
Consolidated list of cited opposition documents
OPPO
Dec 18, 2020
Notice of opposition
OPPO
Dec 18, 2020
Notice of opposition
OPPO
Mar 30, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Search/Exam
Feb 20, 2020
Decision to grant a European patent
Search/Exam
Feb 6, 2020
(Electronic) Receipt
Search/Exam
Feb 6, 2020
French translation of claims
Search/Exam
Feb 6, 2020
German translation of the claims
Search/Exam
Feb 6, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 23, 2019
Bibliographic data of the European patent application
Search/Exam
Oct 23, 2019
Communication about intention to grant a European patent
Search/Exam
Oct 23, 2019
Intention to grant (signatures)
Search/Exam
Oct 23, 2019
Text intended for grant (clean copy)
Search/Exam
Oct 23, 2019
Text intended for grant (version for approval)
Search/Exam
Sep 27, 2019
Examination started
Search/Exam
Jul 24, 2019
Notification on forthcoming publication of bibliographic data
Search/Exam
May 22, 2019
Communication to designated inventor
Search/Exam
May 18, 2019
Priority search results copy provided by EPO
Search/Exam
May 10, 2019
(Electronic) Receipt
Search/Exam
May 10, 2019
Amended claims filed after receipt of (European) search report
Search/Exam
May 10, 2019
Amended claims with annotations
Search/Exam
May 10, 2019
Amended description filed after receipt of (European) search report
Search/Exam
May 10, 2019
Amended description with annotations
Search/Exam
May 10, 2019
Amendments received before examination
Search/Exam
May 10, 2019
Request for entry into the European phase
Search/Exam
Apr 29, 2019
Annexes to the international preliminary examination report
Search/Exam
Apr 29, 2019
Copy of the international preliminary examination report
Search/Exam
Feb 22, 2019
Information on entry into European phase
Search/Exam
Oct 5, 2018
Annex to International preliminary examination report
PCT2
Oct 5, 2018
International preliminary examination report
PCT2
Oct 5, 2018
International preliminary examination report - free text sheet
PCT2
Oct 5, 2018
International preliminary examination report - points I-VIII
PCT2
Oct 5, 2018
Transmittal of International Preliminary Examination Report
PCT2
Sep 4, 2018
Notification of election of EPO
Search/Exam
Aug 21, 2018
Notification of receipt of demand
PCT2
Aug 14, 2018
(Electronic) Receipt
PCT2
Aug 14, 2018
PCT demand form
PCT2
Aug 14, 2018
PCT(IPEA): Amended sheet - claims
PCT2
Aug 14, 2018
PCT(IPEA): Amended sheet - claims
PCT2
Aug 14, 2018
Payment of fees and costs
PCT2
Aug 14, 2018
Reply to International Search Opinion
PCT2
May 7, 2018
Priority document (electronically transmitted)
Search/Exam
Apr 19, 2018
Copy of the international search report
Search/Exam
Apr 19, 2018
Published international application - A1
Search/Exam
Jan 30, 2018
ISR: cited documents
PCTISA
Jan 29, 2018
Written opinion of the ISA, boxes No. I to VIII
PCTISA
Jan 29, 2018
Written opinion of the ISA, cover sheet
PCTISA
Jan 29, 2018
Written opinion of the ISA, supplemental box
PCTISA
Jan 15, 2018
Notification relating to declaration under Rule 4.17 PCT (copy for ISA/EP)
PCTISA
Dec 4, 2017
Annex
PCTISA
Dec 4, 2017
Incoming letter related to ISA procedure
PCTISA
Dec 4, 2017
Incoming letter related to ISA procedure
PCTISA
Dec 4, 2017
Submission concerning representation
PCTISA
Dec 4, 2017
Submission concerning representation
PCTISA
Dec 4, 2017
Submission concerning representation
PCTISA
Dec 4, 2017
Substitute sheet (Rule 26) - request form for ISA/EP
PCTISA
Nov 7, 2017
Notification of receipt of Search copy
PCTISA
Oct 30, 2017
Abstract
PCTISA
Oct 30, 2017
Annex
PCTISA
Oct 30, 2017
Claims
PCTISA
Oct 30, 2017
Description
PCTISA
Oct 30, 2017
Drawings
PCTISA
Oct 30, 2017
Fee calculation sheet for an international application
PCTISA
Oct 30, 2017
Incoming communication concerning PCT Direct
PCTISA
Oct 30, 2017
Incoming letter related to ISA procedure
PCTISA
Oct 30, 2017
Notification Concerning Payment of Prescribed Fees (copy for ISA/EP)
PCTISA
Oct 30, 2017
Notification of the International Application Number and of the International Filing Date (copy for ISA/EP)
PCTISA
Oct 30, 2017
Request form for international application (copy for ISA/EP)
PCTISA