Method For Making Silicone Hydrogel Contact Lenses

Patent No. EP3774310 (titled "Method For Making Silicone Hydrogel Contact Lenses") was filed by Alcon on Mar 27, 2019. The application was issued on Jul 6, 2022.

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
COOPERVISION	Apr 4, 2023	BECK GREENER

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 11, 2025
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Feb 11, 2025
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Nov 5, 2024
Annex to the communication - opposition
Nov 5, 2024
Brief communication - Opposition proceedings
Nov 5, 2024
Brief communication - Opposition proceedings
Nov 5, 2024
Decision of the Opposition Division and instruction
Nov 5, 2024
Decision rejecting the opposition
Nov 5, 2024
Decision rejecting the opposition
Nov 5, 2024
Grounds for the decision (Annex) - opposition
Nov 5, 2024
Means of redress
Nov 5, 2024
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 5, 2024
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 5, 2024
Provision of a copy of the minutes - opposition procedure
Nov 5, 2024
Provision of a copy of the minutes - opposition procedure
Oct 2, 2024
Information about the result of oral proceedings
Aug 8, 2024
Brief communication - Opposition proceedings
Aug 2, 2024
(Electronic) Receipt
Aug 2, 2024
(Electronic) Receipt
Aug 2, 2024
Letter accompanying subsequently filed items
Aug 2, 2024
Letter accompanying subsequently filed items
Aug 2, 2024
Letter regarding the opposition procedure (no time limit)
Aug 2, 2024
Request for interpreters during oral proceedings
Aug 1, 2024
Brief communication - Opposition proceedings
Jul 26, 2024
(Electronic) Receipt
Jul 26, 2024
(Electronic) Receipt
Jul 26, 2024
Letter accompanying subsequently filed items
Jul 26, 2024
Letter accompanying subsequently filed items
Jul 26, 2024
Request for interpreters during oral proceedings
Jul 26, 2024
Written submission in preparation to/during oral proceedings
Nov 29, 2023
Advice of delivery
Nov 27, 2023
Annex to the communication - opposition
Nov 27, 2023
Information concerning oral proceedings
Nov 27, 2023
Scanned annex to a communication - opposition procedure
Nov 27, 2023
Summons to attend oral proceedings
Nov 27, 2023
Summons to attend oral proceedings
Nov 27, 2023
Transmittal of decision / summons - opposition
Nov 27, 2023
Transmittal of decision / summons - opposition
Aug 22, 2023
Brief communication - Opposition proceedings
Aug 17, 2023
(Electronic) Receipt
Aug 17, 2023
Letter accompanying subsequently filed items
Aug 17, 2023
Reply of the patent proprietor to the notice(s) of opposition
Jun 12, 2023
Brief communication - Opposition proceedings
Jun 6, 2023
(Electronic) Receipt
Jun 6, 2023
Citation in opposition procedure - 001
Jun 6, 2023
Citation in opposition procedure - 002
Jun 6, 2023
Citation in opposition procedure - 003
Jun 6, 2023
Citation in opposition procedure - 004
Jun 6, 2023
Citation in opposition procedure - 005
Jun 6, 2023
Letter accompanying subsequently filed items
Jun 6, 2023
Letter regarding the opposition procedure (no time limit)
Apr 25, 2023
Communication of a notice of opposition and request to file observations
Apr 25, 2023
Notice of further oppositions to opponent(s)
Apr 21, 2023
Communication confirming withdrawal from representation
Apr 21, 2023
Communication of amended entries concerning the representative
Apr 18, 2023
(Electronic) Receipt
Apr 18, 2023
Letter accompanying subsequently filed items (CDR)
Apr 18, 2023
Submission concerning change of proprietor's representative
Apr 11, 2023
Communication of a notice of opposition - first information to patent proprietor
Apr 11, 2023
Request for documents
Apr 4, 2023
(Electronic) Receipt
Apr 4, 2023
Citation in opposition procedure - 006
Apr 4, 2023
Citation in opposition procedure - 007
Apr 4, 2023
Citation in opposition procedure - 008
Apr 4, 2023
Citation in opposition procedure - 009
Apr 4, 2023
Citation in opposition procedure - 010
Apr 4, 2023
Citation in opposition procedure - 011
Apr 4, 2023
Citation in opposition procedure - 012
Apr 4, 2023
Citation in opposition procedure - 013
Apr 4, 2023
Citation in opposition procedure - 014
Apr 4, 2023
Citation in opposition procedure - 015
Apr 4, 2023
Consolidated list of cited opposition documents
Apr 4, 2023
Notice of opposition
Apr 4, 2023
Notice of opposition
Jul 19, 2022
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jun 10, 2022
Decision to grant a European patent
May 24, 2022
(Electronic) Receipt
May 24, 2022
Filing of the translations of the claims
May 24, 2022
French translation of claims
May 24, 2022
German translation of the claims
May 24, 2022
Letter accompanying subsequently filed items
Feb 11, 2022
Bibliographic data of the European patent application
Feb 11, 2022
Communication about intention to grant a European patent
Feb 11, 2022
Intention to grant (signatures)
Feb 11, 2022
Text intended for grant (clean copy)
Feb 11, 2022
Text intended for grant (version for approval)
Oct 4, 2021
(Electronic) Receipt
Oct 4, 2021
Amended description with annotations
Oct 4, 2021
Description
Oct 4, 2021
Letter accompanying subsequently filed items
Oct 4, 2021
Reply to communication from the Examining Division
Jul 28, 2021
Annex to the communication
Jul 28, 2021
Communication from the Examining Division
Jul 20, 2021
Examination started
Feb 25, 2021
(Electronic) Receipt
Feb 25, 2021
Amended claims filed after receipt of (European) search report
Feb 25, 2021
Amended claims filed after receipt of (European) search report
Feb 25, 2021
Amended claims with annotations
Feb 25, 2021
Amended claims with annotations
Feb 25, 2021
Amendments received before examination
Feb 25, 2021
Letter accompanying subsequently filed items
Jan 20, 2021
Notification on forthcoming publication of bibliographic data
Nov 4, 2020
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Nov 2, 2020
Communication to designated inventor
Nov 2, 2020
Communication to designated inventor
Nov 2, 2020
Communication to designated inventor
Nov 2, 2020
Communication to designated inventor
Nov 2, 2020
Communication to designated inventor
Nov 2, 2020
Communication to designated inventor
Oct 13, 2020
(Electronic) Receipt
Oct 13, 2020
Request for entry into the European phase
Oct 12, 2020
Copy of the international preliminary report on patentability
Aug 7, 2020
Information on entry into European phase
Oct 22, 2019
Priority document (electronically transmitted)
Oct 3, 2019
Copy of the international search report
Oct 3, 2019
Published international application - A1
Jun 28, 2019
ISR: cited documents
Jun 28, 2019
Written opinion of the ISA, boxes No. I to VIII
Jun 28, 2019
Written opinion of the ISA, cover sheet
Jun 28, 2019
Written opinion of the ISA, supplemental box
May 17, 2019
Notification of receipt of Search copy
May 3, 2019
Abstract
May 3, 2019
Annex
May 3, 2019
Annex
May 3, 2019
Claims
May 3, 2019
Description
May 3, 2019
Drawings
May 3, 2019
Request form for international application (copy for ISA/EP)

EP3774310

ALCON

Application Number: EP19721786A
Filing Date: Mar 27, 2019
Status: Opposition Rejected; Feb 7, 2025
Publication Date: Jul 6, 2022
External Links: Slate, Register , Google Patents

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Method For Making Silicone Hydrogel Contact Lenses

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Dossier Documents

EP3774310