A Fermentation Method For Producing Gellan Gum

Patent No. EP3483280 (titled "A Fermentation Method For Producing Gellan Gum") was filed by DSM Assets on Nov 9, 2018. The application was issued on Mar 9, 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
JUNGBUNZLAUER AUSTRIA	Dec 9, 2022	ELLMEYER

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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Oct 15, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Oct 15, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Sep 15, 2025
F3345 Forwarding of submissions to parties
Sep 10, 2025
(Electronic) Receipt
Sep 10, 2025
Letter accompanying subsequently filed items
Sep 10, 2025
Letter dealing with oral proceedings during the appeal procedure
Aug 22, 2025
Communication about missing proof of delivery
Jul 16, 2025
F3011.1 Oral Proceedings: summons
Jul 16, 2025
F3011.1 Oral Proceedings: summons
Jul 16, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jul 16, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Jul 15, 2025
Composition of the board (T)
Jul 15, 2025
F3010 Oral proceedings: order for summons
May 7, 2025
Communication of the registration of a transfer or change of name and/or address
May 7, 2025
F3345 Forwarding of submissions to parties
Apr 28, 2025
(Electronic) Receipt
Apr 28, 2025
Letter accompanying subsequently filed items
Apr 28, 2025
Submission concerning change of proprietor's address
Oct 22, 2024
F3345 Forwarding of submissions to parties
Oct 17, 2024
Consolidated list of documents cited in appeal procedure
Oct 16, 2024
(Electronic) Receipt
Oct 16, 2024
Letter accompanying subsequently filed items
Oct 16, 2024
Reply to appeal
Jun 17, 2024
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jun 13, 2024
Letter accompanying subsequently filed items
Jun 13, 2024
Submission concerning representation
Jun 12, 2024
(Electronic) Receipt
Jun 12, 2024
Citation in appeal procedure - 012
Jun 12, 2024
Letter accompanying subsequently filed items
Jun 12, 2024
Statement of grounds of appeal
Apr 19, 2024
F3204 Communication of the file number to the parties
Apr 19, 2024
F3204 Communication of the file number to the parties
Apr 8, 2024
Letter accompanying subsequently filed items
Apr 8, 2024
Notice of appeal
Feb 12, 2024
Annex to the communication - opposition
Feb 12, 2024
Brief communication - Opposition proceedings
Feb 12, 2024
Brief communication - Opposition proceedings
Feb 12, 2024
Decision of the Opposition Division and instruction
Feb 12, 2024
Decision rejecting the opposition
Feb 12, 2024
Decision rejecting the opposition
Feb 12, 2024
Grounds for the decision (Annex) - opposition
Feb 12, 2024
Means of redress
Feb 12, 2024
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 12, 2024
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Feb 12, 2024
Provision of a copy of the minutes - opposition procedure
Feb 12, 2024
Provision of a copy of the minutes - opposition procedure
Feb 12, 2024
Scanned annex to a communication - opposition procedure
Jan 29, 2024
Information about the result of oral proceedings
Dec 18, 2023
Brief communication - Opposition proceedings
Dec 4, 2023
Brief communication - Opposition proceedings
Dec 4, 2023
Brief communication - Opposition proceedings
Nov 29, 2023
Citation in opposition procedure - 011
Nov 29, 2023
Consolidated list of cited opposition documents
Nov 29, 2023
Written submission in preparation to/during oral proceedings
Nov 28, 2023
(Electronic) Receipt
Nov 28, 2023
Letter accompanying subsequently filed items
Nov 28, 2023
Written submission in preparation to/during oral proceedings
May 24, 2023
Advice of delivery
May 22, 2023
Advice of delivery
May 22, 2023
Document concerning representation
May 22, 2023
Miscellaneous requests concerning client data
May 19, 2023
Annex to the communication - opposition
May 19, 2023
Information concerning oral proceedings
May 19, 2023
Scanned annex to a communication - opposition procedure
May 19, 2023
Summons to attend oral proceedings
May 19, 2023
Summons to attend oral proceedings
May 19, 2023
Transmittal of decision / summons - opposition
May 19, 2023
Transmittal of decision / summons - opposition
May 2, 2023
Brief communication - Opposition proceedings
Apr 24, 2023
(Electronic) Receipt
Apr 24, 2023
Citation in opposition procedure - 010
Apr 24, 2023
Letter accompanying subsequently filed items
Apr 24, 2023
Reply of the patent proprietor to the notice(s) of opposition
Dec 21, 2022
Communication of a notice of opposition and request to file observations
Dec 21, 2022
Notice of further oppositions to opponent(s)
Dec 14, 2022
Communication of a notice of opposition - first information to patent proprietor
Dec 9, 2022
(Electronic) Receipt
Dec 9, 2022
Citation in opposition procedure - 001
Dec 9, 2022
Citation in opposition procedure - 002
Dec 9, 2022
Citation in opposition procedure - 003
Dec 9, 2022
Citation in opposition procedure - 004
Dec 9, 2022
Citation in opposition procedure - 005
Dec 9, 2022
Citation in opposition procedure - 006
Dec 9, 2022
Citation in opposition procedure - 007
Dec 9, 2022
Citation in opposition procedure - 008
Dec 9, 2022
Citation in opposition procedure - 009
Dec 9, 2022
Notice of opposition
Dec 9, 2022
Notice of opposition
Mar 22, 2022
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 10, 2022
Decision to grant a European patent
Feb 4, 2022
Rectification of the designation of the inventor under Rule 21 EPC
Feb 1, 2022
Bibliographic data of the European patent application
Jan 28, 2022
(Electronic) Receipt
Jan 28, 2022
Filing of the translations of the claims
Jan 28, 2022
French translation of claims
Jan 28, 2022
German translation of the claims
Jan 28, 2022
Letter accompanying subsequently filed items
Nov 22, 2021
Bibliographic data of the European patent application
Nov 22, 2021
Communication about intention to grant a European patent
Nov 22, 2021
Intention to grant (signatures)
Nov 22, 2021
Text intended for grant (clean copy)
Nov 22, 2021
Text intended for grant (version for approval)
Nov 9, 2020
(Electronic) Receipt
Nov 9, 2020
Amended claims with annotations
Nov 9, 2020
Claims
Nov 9, 2020
Letter accompanying subsequently filed items
Nov 9, 2020
Reply to communication from the Examining Division
Aug 17, 2020
(Electronic) Receipt
Aug 17, 2020
Letter accompanying subsequently filed items
Aug 17, 2020
Priority search results
Aug 17, 2020
Reply to invitation to file a copy of priority search results
Jul 15, 2020
Annex to the communication
Jul 15, 2020
Communication from the Examining Division
Jul 9, 2020
Examination started
May 8, 2020
Communication of amended entries concerning the representative
Apr 30, 2020
Letter accompanying subsequently filed items
Apr 30, 2020
Submission concerning change of applicant's representative
Dec 12, 2019
(Electronic) Receipt
Dec 12, 2019
Letter accompanying subsequently filed items
Dec 12, 2019
Statement of non-availability of priority search results
Oct 14, 2019
Invitation to file a copy of search results(priority)
Oct 8, 2019
Miscellaneous requests concerning client data
Sep 30, 2019
(Electronic) Receipt
Sep 30, 2019
Amended claims filed after receipt of (European) search report
Sep 30, 2019
Amended claims with annotations
Sep 30, 2019
Amendments received before examination
Sep 30, 2019
Letter accompanying subsequently filed items
May 20, 2019
Invitation to confirm maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Apr 17, 2019
Notification of forthcoming publication
Mar 22, 2019
Communication regarding the transmission of the European search report
Mar 22, 2019
European search opinion
Mar 22, 2019
European search report
Mar 22, 2019
Information on Search Strategy
Mar 11, 2019
Search started
Jan 17, 2019
Confirmation of receipt of (electronically) transmitted priority document
Jan 9, 2019
Priority document (electronically transmitted)
Jan 4, 2019
Communication to designated inventor
Jan 4, 2019
Communication to designated inventor
Jan 4, 2019
Communication to designated inventor
Jan 4, 2019
Communication to designated inventor
Dec 7, 2018
Brief communication to applicant/representative (Legal Division)
Nov 28, 2018
(Electronic) Receipt
Nov 28, 2018
Designation of inventor
Nov 28, 2018
Letter accompanying subsequently filed items
Nov 28, 2018
Letter concerning the inventor
Nov 9, 2018
Abstract
Nov 9, 2018
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Nov 9, 2018
Claims
Nov 9, 2018
Description
Nov 9, 2018
Designation of inventor
Nov 9, 2018
Request for grant of a European patent
Nov 9, 2018
Submission concerning representation

EP3483280

DSM ASSETS

Application Number: EP18205490A
Filing Date: Nov 9, 2018
Status: Granted And Under Opposition; Feb 4, 2022
Publication Date: Mar 9, 2022
External Links: Slate, Register , Google Patents

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A Fermentation Method For Producing Gellan Gum

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Dossier Documents

EP3483280