Negative Lens And Endoscope Objective

Patent No. EP3333599 (titled "Negative Lens And Endoscope Objective") was filed by Karl Storz on Nov 15, 2017. The application was issued on May 1, 2019.

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
HENKE SASS	Jan 31, 2020	PATENTANWALTE GEYER

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 2, 2026
F3345 Forwarding of submissions to parties
Jan 28, 2026
(Electronic) Receipt
Jan 28, 2026
Letter accompanying subsequently filed items
Jan 28, 2026
Letter relating to Appeal Procedure
Nov 17, 2025
F3345 Forwarding of submissions to parties
Nov 11, 2025
(Electronic) Receipt
Nov 11, 2025
Annexes (other than cited documents) regarding appeal procedure
Nov 11, 2025
Annexes (other than cited documents) regarding appeal procedure
Nov 11, 2025
Letter accompanying subsequently filed items
Nov 11, 2025
Reply to appeal
Sep 23, 2025
Composition of the board (T)
Jul 11, 2025
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jul 7, 2025
(Electronic) Receipt
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Amended claims with annotations
Jul 7, 2025
Auxiliary request during appeals procedure - 01
Jul 7, 2025
Auxiliary request during appeals procedure - 01
Jul 7, 2025
Auxiliary request during appeals procedure - 01
Jul 7, 2025
Auxiliary request during appeals procedure - 02
Jul 7, 2025
Auxiliary request during appeals procedure - 03
Jul 7, 2025
Auxiliary request during appeals procedure - 04
Jul 7, 2025
Auxiliary request during appeals procedure - 04
Jul 7, 2025
Auxiliary request during appeals procedure - 05
Jul 7, 2025
Auxiliary request during appeals procedure - 05
Jul 7, 2025
Auxiliary request during appeals procedure - 06
Jul 7, 2025
Auxiliary request during appeals procedure - 06
Jul 7, 2025
Auxiliary request during appeals procedure - 07
Jul 7, 2025
Auxiliary request during appeals procedure - 07
Jul 7, 2025
Auxiliary request during appeals procedure - 08
Jul 7, 2025
Auxiliary request during appeals procedure - 08
Jul 7, 2025
Auxiliary request during appeals procedure - 09
Jul 7, 2025
Auxiliary request during appeals procedure - 09
Jul 7, 2025
Letter accompanying subsequently filed items
Jul 7, 2025
Main request during appeals procedure
Jul 7, 2025
Statement of grounds of appeal
Jun 17, 2025
F3345 Forwarding of submissions to parties
Jun 12, 2025
(Electronic) Receipt
Jun 12, 2025
Authorisation
Jun 12, 2025
Letter accompanying subsequently filed items
Jun 12, 2025
Submission concerning change of proprietor's representative
May 16, 2025
F3204 Communication of the file number to the parties
May 16, 2025
F3204 Communication of the file number to the parties
May 9, 2025
Brief communication - Opposition proceedings
May 9, 2025
Communication confirming withdrawal from representation
May 9, 2025
Communication of amended entries concerning the representative
May 6, 2025
(Electronic) Receipt
May 6, 2025
Letter accompanying subsequently filed items
May 6, 2025
Submission concerning change of proprietor's representative
May 2, 2025
Brief communication - Opposition proceedings
May 2, 2025
Invitation to file an authorisation
Apr 29, 2025
(Electronic) Receipt
Apr 29, 2025
Notice of appeal
Apr 29, 2025
Notice of appeal
Mar 7, 2025
Annex to the communication - opposition
Mar 7, 2025
Brief communication - Opposition proceedings
Mar 7, 2025
Brief communication - Opposition proceedings
Mar 7, 2025
Decision of the Opposition Division and instruction
Mar 7, 2025
Decision revoking the European patent
Mar 7, 2025
Decision revoking the European patent
Mar 7, 2025
Grounds for the decision (Annex) - opposition
Mar 7, 2025
Means of redress
Mar 7, 2025
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 7, 2025
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Mar 7, 2025
Provision of a copy of the minutes - opposition procedure
Mar 7, 2025
Provision of a copy of the minutes - opposition procedure
Mar 7, 2025
Scanned annex to a communication - opposition procedure
Mar 7, 2025
Scanned annex to a communication - opposition procedure
Mar 7, 2025
Scanned annex to a communication - opposition procedure
Mar 7, 2025
Scanned annex to a communication - opposition procedure
Feb 25, 2025
Information about the result of oral proceedings
Jan 7, 2025
Brief communication - Opposition proceedings
Dec 19, 2024
(Electronic) Receipt
Dec 19, 2024
Brief communication - Opposition proceedings
Dec 19, 2024
Letter accompanying subsequently filed items
Dec 19, 2024
Written submission in preparation to/during oral proceedings
Dec 16, 2024
(Electronic) Receipt
Dec 16, 2024
Amended description with annotations
Dec 16, 2024
Auxiliary request during Opposition procedure
Dec 16, 2024
Auxiliary request during Opposition procedure
Dec 16, 2024
Auxiliary request during Opposition procedure
Dec 16, 2024
Auxiliary request during Opposition procedure - 01
Dec 16, 2024
Auxiliary request during Opposition procedure - 02
Dec 16, 2024
Auxiliary request during Opposition procedure - 03
Dec 16, 2024
Description
Dec 16, 2024
Letter accompanying subsequently filed items
Dec 16, 2024
Main request during Opposition procedure
Dec 16, 2024
Main request during Opposition procedure
Dec 16, 2024
Written submission in preparation to/during oral proceedings
Nov 11, 2024
Brief communication - Opposition proceedings
Nov 4, 2024
(Electronic) Receipt
Nov 4, 2024
Letter accompanying subsequently filed items
Nov 4, 2024
Request for interpreters during oral proceedings
Sep 23, 2024
Annex to the communication - opposition
Sep 23, 2024
Brief communication - Opposition proceedings
Sep 23, 2024
Brief communication - Opposition proceedings
Sep 23, 2024
Scanned annex to a communication - opposition procedure
Sep 19, 2024
Brief communication - Opposition proceedings
Sep 19, 2024
Notification concerning the date of oral proceedings
Sep 19, 2024
Notification concerning the date of oral proceedings
Sep 12, 2024
(Electronic) Receipt
Sep 12, 2024
Letter accompanying subsequently filed items
Sep 12, 2024
Written submission in preparation to/during oral proceedings
Sep 4, 2024
Brief communication - Opposition proceedings
Aug 28, 2024
(Electronic) Receipt
Aug 28, 2024
Letter accompanying subsequently filed items
Aug 28, 2024
Oral proceedings: Request for postponement
Jun 21, 2024
(Electronic) Receipt
Jun 21, 2024
Letter accompanying subsequently filed items
Jun 19, 2024
Annex to the communication - opposition
Jun 19, 2024
Brief communication - Opposition proceedings
Jun 19, 2024
Brief communication - Opposition proceedings
Jun 19, 2024
Information concerning oral proceedings
Jun 19, 2024
Scanned annex to a communication - opposition procedure
Jun 19, 2024
Summons to attend oral proceedings
Jun 19, 2024
Summons to attend oral proceedings
May 22, 2024
Consolidated list of cited opposition documents
Apr 25, 2024
Decision of the Board of Appeal
Apr 25, 2024
F3032 Notification(s) of the decision
Apr 25, 2024
F3032 Notification(s) of the decision
Mar 15, 2024
F3013 Oral Proceedings: Forwarding minutes
Mar 15, 2024
F3013 Oral Proceedings: Forwarding minutes
Mar 15, 2024
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Mar 5, 2024
(Electronic) Receipt
Mar 5, 2024
F3345 Forwarding of submissions to parties
Mar 5, 2024
F3345 Forwarding of submissions to parties
Mar 5, 2024
Letter accompanying subsequently filed items
Mar 5, 2024
Letter dealing with oral proceedings during the appeal procedure
Mar 5, 2024
Oral proceedings: change of venue
Mar 5, 2024
Oral proceedings: change of venue
Mar 4, 2024
(Electronic) Receipt
Mar 4, 2024
Letter accompanying subsequently filed items
Mar 4, 2024
Letter dealing with oral proceedings during the appeal procedure
Feb 1, 2024
F3345 Forwarding of submissions to parties
Jan 26, 2024
(Electronic) Receipt
Jan 26, 2024
Citation in opposition procedure - 020
Jan 26, 2024
Citation in opposition procedure - 021
Jan 26, 2024
Citation in opposition procedure - 022
Jan 26, 2024
Citation in opposition procedure - 023
Jan 26, 2024
Citation in opposition procedure - 024
Jan 26, 2024
Citation in opposition procedure - 025
Jan 26, 2024
Citation in opposition procedure - 026
Jan 26, 2024
Citation in opposition procedure - 027
Jan 26, 2024
Citation in opposition procedure - 028
Jan 26, 2024
Letter accompanying subsequently filed items
Jan 26, 2024
Letter dealing with oral proceedings during the appeal procedure
Jan 26, 2024
Non-Patent Literature cited during the appeal procedure
Jan 26, 2024
Non-Patent Literature cited during the appeal procedure
Jan 26, 2024
Non-Patent Literature cited during the appeal procedure
Jan 26, 2024
Non-Patent Literature cited during the appeal procedure
Jan 26, 2024
Non-Patent Literature cited during the appeal procedure
Jan 26, 2024
Non-Patent Literature cited during the appeal procedure
Jan 26, 2024
Non-Patent Literature cited during the appeal procedure
Jan 26, 2024
Non-Patent Literature cited during the appeal procedure
Jan 26, 2024
Non-Patent Literature cited during the appeal procedure
Jan 16, 2024
F3345 Forwarding of submissions to parties
Jan 11, 2024
(Electronic) Receipt
Jan 11, 2024
Letter accompanying subsequently filed items
Jan 11, 2024
Request for interpreters during oral proceedings
May 25, 2023
Advice of delivery
May 23, 2023
F3011.1 Oral Proceedings: summons
May 23, 2023
F3011.1 Oral Proceedings: summons
May 23, 2023
F3350 Communication regarding oral proceedings (art. 15 Rules of Procedure of the Boards of Appeal)
May 17, 2023
F3010 Oral proceedings: order for summons
Apr 12, 2023
F3345 Forwarding of submissions to parties
Apr 5, 2023
(Electronic) Receipt
Apr 5, 2023
Amended claims with annotations
Apr 5, 2023
Amended claims with annotations
Apr 5, 2023
Amended claims with annotations
Apr 5, 2023
Auxiliary request during appeals procedure - 01
Apr 5, 2023
Auxiliary request during appeals procedure - 02
Apr 5, 2023
Auxiliary request during appeals procedure - 03
Apr 5, 2023
Letter accompanying subsequently filed items
Apr 5, 2023
Letter relating to Appeal Procedure
Oct 27, 2022
F3345 Forwarding of submissions to parties
Oct 24, 2022
(Electronic) Receipt
Oct 24, 2022
Citation in opposition procedure - 018
Oct 24, 2022
Citation in opposition procedure - 019
Oct 24, 2022
Letter accompanying subsequently filed items
Oct 24, 2022
Letter relating to Appeal Procedure
Oct 24, 2022
Non-Patent Literature cited during the appeal procedure
Oct 24, 2022
Non-Patent Literature cited during the appeal procedure
Sep 12, 2022
Composition of the board (T)
Apr 22, 2022
F3345 Forwarding of submissions to parties
Mar 28, 2022
(Electronic) Receipt
Mar 28, 2022
Amended claims with annotations
Mar 28, 2022
Amended claims with annotations
Mar 28, 2022
Amended claims with annotations
Mar 28, 2022
Amended claims with annotations
Mar 28, 2022
Auxiliary request during appeals procedure - 01
Mar 28, 2022
Auxiliary request during appeals procedure - 02
Mar 28, 2022
Auxiliary request during appeals procedure - 03
Mar 28, 2022
Auxiliary request during appeals procedure - 04
Mar 28, 2022
Letter accompanying subsequently filed items
Mar 28, 2022
Reply to appeal
Dec 3, 2021
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Nov 29, 2021
(Electronic) Receipt
Nov 29, 2021
Annexes (other than cited documents) regarding appeal procedure
Nov 29, 2021
Annexes (other than cited documents) regarding appeal procedure
Nov 29, 2021
Letter accompanying subsequently filed items
Nov 29, 2021
Statement of grounds of appeal
Sep 10, 2021
F3204 Communication of the file number to the parties
Sep 10, 2021
F3204 Communication of the file number to the parties
Sep 3, 2021
(Electronic) Receipt
Sep 3, 2021
Annexes (other than cited documents) regarding appeal procedure
Sep 3, 2021
Letter accompanying subsequently filed items
Sep 3, 2021
Notice of appeal
Aug 10, 2021
Advice of delivery
Aug 6, 2021
Advice of delivery
Aug 5, 2021
Annex to the communication - opposition
Aug 5, 2021
Decision rejecting the opposition
Aug 5, 2021
Decision rejecting the opposition
Aug 5, 2021
Grounds for the decision (Annex) - opposition
Aug 5, 2021
Means of redress
Aug 5, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Aug 5, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Aug 5, 2021
Provision of a copy of the minutes - opposition procedure
Aug 5, 2021
Provision of a copy of the minutes - opposition procedure
Aug 5, 2021
Scanned annex to a communication - opposition procedure
Aug 5, 2021
Transmittal of decision / summons - opposition
Aug 5, 2021
Transmittal of decision / summons - opposition
Jul 21, 2021
Information about the result of oral proceedings
Jun 18, 2021
Brief communication - Opposition proceedings
Jun 14, 2021
(Electronic) Receipt
Jun 14, 2021
Brief communication - Opposition proceedings
Jun 14, 2021
Letter accompanying subsequently filed items
Jun 14, 2021
Written submission in preparation to/during oral proceedings
Jun 9, 2021
(Electronic) Receipt
Jun 9, 2021
Letter accompanying subsequently filed items
Jun 9, 2021
Letter regarding the opposition procedure (no time limit)
May 26, 2021
Brief communication - Opposition proceedings
May 20, 2021
(Electronic) Receipt
May 20, 2021
Citation in opposition procedure - 017
May 20, 2021
Letter accompanying subsequently filed items
May 20, 2021
Request for interpreters during oral proceedings
May 20, 2021
Written submission in preparation to/during oral proceedings
May 19, 2021
(Electronic) Receipt
May 19, 2021
Letter accompanying subsequently filed items
May 19, 2021
Written submission in preparation to/during oral proceedings
Apr 20, 2021
Notification concerning the date of oral proceedings
Apr 20, 2021
Notification concerning the date of oral proceedings
Oct 16, 2020
Brief communication - Opposition proceedings
Oct 14, 2020
Advice of delivery
Oct 14, 2020
Advice of delivery
Oct 14, 2020
Advice of delivery
Oct 13, 2020
(Electronic) Receipt
Oct 13, 2020
Advice of delivery
Oct 13, 2020
Letter accompanying subsequently filed items
Oct 13, 2020
Oral proceedings: reply to date proposed
Oct 9, 2020
Annex to the communication - opposition
Oct 9, 2020
Summons to attend oral proceedings
Oct 9, 2020
Summons to attend oral proceedings
Jun 10, 2020
Brief communication - Opposition proceedings
Jun 4, 2020
(Electronic) Receipt
Jun 4, 2020
Letter accompanying subsequently filed items
Jun 4, 2020
Reply of the patent proprietor to the notice(s) of opposition
Feb 14, 2020
Communication of a notice of opposition and request to file observations
Feb 14, 2020
Notice of further oppositions to opponent(s)
Feb 7, 2020
Communication of a notice of opposition - first information to patent proprietor
Jan 31, 2020
(Electronic) Receipt
Jan 31, 2020
Citation in opposition procedure - 001
Jan 31, 2020
Citation in opposition procedure - 002
Jan 31, 2020
Citation in opposition procedure - 003
Jan 31, 2020
Citation in opposition procedure - 004
Jan 31, 2020
Citation in opposition procedure - 005
Jan 31, 2020
Citation in opposition procedure - 006
Jan 31, 2020
Citation in opposition procedure - 007
Jan 31, 2020
Citation in opposition procedure - 008
Jan 31, 2020
Citation in opposition procedure - 009
Jan 31, 2020
Citation in opposition procedure - 010
Jan 31, 2020
Citation in opposition procedure - 011
Jan 31, 2020
Citation in opposition procedure - 012
Jan 31, 2020
Citation in opposition procedure - 013
Jan 31, 2020
Citation in opposition procedure - 014
Jan 31, 2020
Citation in opposition procedure - 015
Jan 31, 2020
Citation in opposition procedure - 016
Jan 31, 2020
Notice of opposition
Jan 31, 2020
Notice of opposition
Jan 17, 2020
Communication of amended entries concerning the representative
Jan 13, 2020
Submission concerning change of applicant's representative
Jan 10, 2020
Submission concerning change of applicant's representative
Jan 3, 2020
Submission concerning change of applicant's representative
Jan 2, 2020
Submission concerning change of applicant's representative
May 13, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Apr 4, 2019
Decision to grant a European patent
Mar 18, 2019
Filing of the translations of the claims
Mar 18, 2019
French translation of claims
Mar 18, 2019
German translation of the claims
Jan 4, 2019
Bibliographic data of the European patent application
Jan 4, 2019
Communication about intention to grant a European patent
Jan 4, 2019
Intention to grant (signatures)
Jan 4, 2019
Text intended for grant (clean copy)
Jan 4, 2019
Text intended for grant (version for approval)
Nov 29, 2018
Examination started
Sep 24, 2018
Amended claims filed after receipt of (European) search report
Sep 24, 2018
Amended claims with annotations
Sep 24, 2018
Amended description filed after receipt of (European) search report
Sep 24, 2018
Amended description with annotations
Sep 24, 2018
Amendments received before examination
Aug 13, 2018
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Jul 9, 2018
Communication regarding the transmission of the European search report
Jul 9, 2018
European search opinion
Jul 9, 2018
European search report
Jul 9, 2018
Information on Search Strategy
Jun 8, 2018
Letter concerning search matters
May 16, 2018
Notification of forthcoming publication
Apr 30, 2018
Communication regarding the transmission of the European search report
Apr 30, 2018
Information on Search Strategy
Apr 30, 2018
Partial European search report
Apr 30, 2018
Provisional opinion accompanying the partial search results
Apr 13, 2018
Search started
Jan 16, 2018
Communication to designated inventor
Jan 16, 2018
Communication to designated inventor
Jan 11, 2018
Letter concerning the priority
Jan 11, 2018
Priority document
Jan 2, 2018
Designation of inventor
Jan 2, 2018
Letter concerning the inventor
Dec 19, 2017
Deficiency in designation of inventor
Dec 6, 2017
Communication of the registration of a transfer or change of name and/or address
Dec 1, 2017
Annexes in respect of a client data request
Nov 29, 2017
Annexes in respect of a client data request
Nov 17, 2017
Submission concerning change of applicant's name
Nov 15, 2017
Abstract
Nov 15, 2017
Claims
Nov 15, 2017
Description
Nov 15, 2017
Drawings
Nov 15, 2017
Payment of fees and costs
Nov 15, 2017
Priority search results
Nov 15, 2017
Request for grant of a European patent

EP3333599

KARL STORZ

Application Number: EP17001867A
Filing Date: Nov 15, 2017
Status: Granted And Under Opposition; Mar 29, 2019
Publication Date: May 1, 2019
External Links: Slate, Register , Google Patents

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Negative Lens And Endoscope Objective

Patent Summary

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Dossier Documents

EP3333599