IP Verse

Use Of An Enzyme And Surfactant For Inhibiting Microorganisms - EP4189051

The patent EP4189051 was granted to Unilever on Feb 28, 2024. The application was originally filed on Jul 26, 2021 under application number EP21751536A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4189051

UNILEVER

Application Number: EP21751536A
Filing Date: Jul 26, 2021
Status: Granted And Under Opposition; Jan 26, 2024
Publication Date: Feb 28, 2024
External Links: Slate, Register, Google Patents

Patent Summary

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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
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THE PROCTER & GAMBLE	Nov 28, 2024	GILL JENNINGS & EVERY	ADMISSIBLE

Patent Citations (138) New

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

Citation Phase	Publication Number
DESCRIPTION	DE3417649
DESCRIPTION	DE3742043
DESCRIPTION	EP0070074
DESCRIPTION	EP0164514
DESCRIPTION	EP0218272
DESCRIPTION	EP0328177
DESCRIPTION	EP0331376
DESCRIPTION	EP0384070
DESCRIPTION	EP0407225
DESCRIPTION	EP1065265
DESCRIPTION	EP1921147
DESCRIPTION	EP1921148
DESCRIPTION	GB1296839
DESCRIPTION	GB1372034
DESCRIPTION	JPS6474992
DESCRIPTION	US2220099
DESCRIPTION	US2477383
DESCRIPTION	US3664961
DESCRIPTION	US3919678
DESCRIPTION	US4222905
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DESCRIPTION	US4435307
DESCRIPTION	US5352604
DESCRIPTION	US5648263
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DESCRIPTION	US6939702
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DESCRIPTION	WO0023548
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DESCRIPTION	WO02092741
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INTERNATIONAL-SEARCH-REPORT	US2019024024
INTERNATIONAL-SEARCH-REPORT	WO2017207770
INTERNATIONAL-SEARCH-REPORT	WO9850512

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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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Aug 26, 2025
Communication of the registration of a transfer or change of name and/or address
Search/Exam
Aug 6, 2025
Annexes in respect of a client data request
Search/Exam
Aug 6, 2025
Letter accompanying subsequently filed items
Search/Exam
Aug 6, 2025
Submission concerning change of applicant's address
Search/Exam
Jul 23, 2025
Brief communication - Opposition proceedings
OPPO
Jul 18, 2025
(Electronic) Receipt
OPPO
Jul 17, 2025
(Electronic) Receipt
OPPO
Jul 17, 2025
Request for interpreters during oral proceedings
OPPO
Jul 15, 2025
(Electronic) Receipt
OPPO
Jun 17, 2025
Annex to the communication - opposition
OPPO
Jun 17, 2025
Information concerning oral proceedings
OPPO
Jun 17, 2025
Scanned annex to a communication - opposition procedure
OPPO
Jun 17, 2025
Summons to attend oral proceedings
OPPO
Jun 17, 2025
Summons to attend oral proceedings
OPPO
Apr 15, 2025
Brief communication - Opposition proceedings
OPPO
Apr 10, 2025
(Electronic) Receipt
OPPO
Apr 10, 2025
Auxiliary request during Opposition procedure
OPPO
Apr 10, 2025
Auxiliary request during Opposition procedure
OPPO
Apr 10, 2025
Auxiliary request during Opposition procedure
OPPO
Apr 10, 2025
Auxiliary request during Opposition procedure
OPPO
Apr 10, 2025
Auxiliary request during Opposition procedure - 01
OPPO
Apr 10, 2025
Auxiliary request during Opposition procedure - 02
OPPO
Apr 10, 2025
Auxiliary request during Opposition procedure - 03
OPPO
Apr 10, 2025
Auxiliary request during Opposition procedure - 04
OPPO
Apr 10, 2025
Letter accompanying subsequently filed items
OPPO
Apr 10, 2025
Main request during Opposition procedure
OPPO
Apr 10, 2025
Main request during Opposition procedure
OPPO
Apr 10, 2025
Reply of the patent proprietor to the notice(s) of opposition
OPPO
Jan 8, 2025
Brief communication - Opposition proceedings
OPPO
Dec 20, 2024
(Electronic) Receipt
OPPO
Dec 20, 2024
Letter accompanying subsequently filed items
OPPO
Dec 20, 2024
Notice of opposition
OPPO
Dec 12, 2024
Communication of a notice of opposition and request to file observations
OPPO
Dec 12, 2024
Notice of further oppositions to opponent(s)
OPPO
Dec 4, 2024
Communication of a notice of opposition - first information to patent proprietor
OPPO
Nov 28, 2024
(Electronic) Receipt
OPPO
Nov 28, 2024
Citation in opposition procedure - 001
OPPO
Nov 28, 2024
Citation in opposition procedure - 002
OPPO
Nov 28, 2024
Citation in opposition procedure - 003
OPPO
Nov 28, 2024
Citation in opposition procedure - 004
OPPO
Nov 28, 2024
Citation in opposition procedure - 004
OPPO
Nov 28, 2024
Citation in opposition procedure - 005
OPPO
Nov 28, 2024
Citation in opposition procedure - 006
OPPO
Nov 28, 2024
Citation in opposition procedure - 007
OPPO
Nov 28, 2024
Citation in opposition procedure - 007
OPPO
Nov 28, 2024
Citation in opposition procedure - 008
OPPO
Nov 28, 2024
Citation in opposition procedure - 009
OPPO
Nov 28, 2024
Citation in opposition procedure - 010
OPPO
Nov 28, 2024
Citation in opposition procedure - 011
OPPO
Nov 28, 2024
Citation in opposition procedure - 012
OPPO
Nov 28, 2024
Consolidated list of cited opposition documents
OPPO
Nov 28, 2024
Notice of opposition
OPPO
Nov 28, 2024
Notice of opposition
OPPO
Mar 13, 2024
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Search/Exam
Feb 1, 2024
Decision to grant a European patent
Search/Exam
Jan 23, 2024
(Electronic) Receipt
Search/Exam
Jan 23, 2024
French translation of claims
Search/Exam
Jan 23, 2024
German translation of the claims
Search/Exam
Jan 23, 2024
Letter accompanying subsequently filed items
Search/Exam
Oct 25, 2023
Annex to the communication about intention to grant a European patent
Search/Exam
Oct 25, 2023
Bibliographic data of the European patent application
Search/Exam
Oct 25, 2023
Communication about intention to grant a European patent
Search/Exam
Oct 25, 2023
Intention to grant (signatures)
Search/Exam
Oct 25, 2023
Text intended for grant (clean copy)
Search/Exam
Oct 25, 2023
Text intended for grant (version for approval)
Search/Exam
Sep 22, 2023
Examination started
Search/Exam
Jul 10, 2023
(Electronic) Receipt
Search/Exam
Jul 10, 2023
Letter accompanying subsequently filed items
Search/Exam
Jul 10, 2023
Statement of non-availability of priority search results
Search/Exam
May 12, 2023
Invitation to file a copy of search results(priority)
Search/Exam
May 10, 2023
Notification on forthcoming publication of bibliographic data
Search/Exam
Feb 28, 2023
Priority search results copy provided by EPO
Search/Exam
Feb 6, 2023
Annexes to the international preliminary examination report
Search/Exam
Feb 6, 2023
Copy of the international preliminary examination report
Search/Exam
Jan 27, 2023
Information regarding early processing
Search/Exam
Jan 18, 2023
(Electronic) Receipt
Search/Exam
Jan 18, 2023
Request for entry into the European phase
Search/Exam
Dec 9, 2022
Information on entry into European phase
Search/Exam
Jul 5, 2022
Annex to International preliminary examination report
PCT2
Jul 5, 2022
International preliminary examination report
PCT2
Jul 5, 2022
International preliminary examination report - free text sheet
PCT2
Jul 5, 2022
International preliminary examination report - points I-VIII
PCT2
Jul 5, 2022
Transmittal of International Preliminary Examination Report
PCT2
Jun 30, 2022
Notification of election of EPO
Search/Exam
Jun 18, 2022
Amendments of documents (Article 19 PCT) (without attachments)
PCT2
Jun 7, 2022
Notification of receipt of demand
PCT2
May 24, 2022
(Electronic) Receipt
PCT2
May 24, 2022
Letter regarding PCTII procedure
PCT2
May 24, 2022
PCT demand form
PCT2
May 24, 2022
PCT(IPEA): Amended sheet - claims
PCT2
May 24, 2022
PCT(IPEA): Amended sheet - claims
PCT2
May 24, 2022
PCT(IPEA): Amended sheet - description
PCT2
May 24, 2022
PCT(IPEA): Amended sheet - description
PCT2
May 24, 2022
Reply to International Search Opinion
PCT2
Feb 21, 2022
Priority document (electronically transmitted)
Search/Exam
Feb 21, 2022
Priority document (electronically transmitted)
Search/Exam
Feb 3, 2022
Copy of the international search report
Search/Exam
Feb 3, 2022
Published international application - A1
Search/Exam
Dec 11, 2021
Notification of the recording of a change
PCTRO
Dec 11, 2021
Notification of the recording of a change
PCTRO
Nov 30, 2021
Notification relating to declaration under Rule 4.17 PCT (copy for ISA/EP)
PCTRO
Nov 10, 2021
Notification of refund of search fee
PCTISA
Nov 5, 2021
ISR: cited documents
PCTISA
Nov 5, 2021
Written opinion of the ISA, boxes No. I to VIII
PCTISA
Nov 5, 2021
Written opinion of the ISA, cover sheet
PCTISA
Nov 5, 2021
Written opinion of the ISA, supplemental box
PCTISA
Oct 26, 2021
(Electronic) Receipt
PCTRO
Oct 26, 2021
Incoming letter related to PCT RO
PCTRO
Aug 19, 2021
Notification of receipt of Search copy
PCTISA
Aug 18, 2021
Notification of the international application number and of the international filing date
PCTRO
Aug 13, 2021
Request form for international application (copy for ISA/EP)
PCTISA
Jul 26, 2021
(Electronic) Receipt
PCTRO
Jul 26, 2021
Abstract
PCTRO
Jul 26, 2021
Claims
PCTRO
Jul 26, 2021
Description
PCTRO
Jul 26, 2021
Document concerning fees and payments
PCTRO
Jul 26, 2021
Electronic request for grant of an International application
PCTRO
Jul 26, 2021
Incoming communication concerning PCT Direct
PCTRO