Thermally Inhibited Waxy Cassava Starch

Patent No. EP3681298 (titled "Thermally Inhibited Waxy Cassava Starch") was filed by Corn Products on Sep 11, 2018. The application was issued on Feb 21, 2024.

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
RUPP	Nov 19, 2024	STRYCH

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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Sep 15, 2025
Annex to the communication - opposition
Sep 15, 2025
Information concerning oral proceedings
Sep 15, 2025
Scanned annex to a communication - opposition procedure
Sep 15, 2025
Summons to attend oral proceedings
Sep 15, 2025
Summons to attend oral proceedings
Aug 1, 2025
Notification concerning the date of oral proceedings
Aug 1, 2025
Notification concerning the date of oral proceedings
Jul 21, 2025
Brief communication - Opposition proceedings
Jul 16, 2025
(Electronic) Receipt
Jul 16, 2025
Any annexes (other than citation) to an opposition letter
Jul 16, 2025
Letter accompanying subsequently filed items
Jul 16, 2025
Oral proceedings: Request for postponement
Jul 11, 2025
Annex to the communication - opposition
Jul 11, 2025
Information concerning oral proceedings
Jul 11, 2025
Scanned annex to a communication - opposition procedure
Jul 11, 2025
Summons to attend oral proceedings
Jul 11, 2025
Summons to attend oral proceedings
Apr 10, 2025
Brief communication - Opposition proceedings
Apr 4, 2025
(Electronic) Receipt
Apr 4, 2025
Auxiliary request during Opposition procedure
Apr 4, 2025
Auxiliary request during Opposition procedure
Apr 4, 2025
Auxiliary request during Opposition procedure
Apr 4, 2025
Auxiliary request during Opposition procedure
Apr 4, 2025
Auxiliary request during Opposition procedure
Apr 4, 2025
Auxiliary request during Opposition procedure
Apr 4, 2025
Auxiliary request during Opposition procedure
Apr 4, 2025
Auxiliary request during Opposition procedure
Apr 4, 2025
Auxiliary request during Opposition procedure - 01
Apr 4, 2025
Auxiliary request during Opposition procedure - 02
Apr 4, 2025
Auxiliary request during Opposition procedure - 03
Apr 4, 2025
Auxiliary request during Opposition procedure - 04
Apr 4, 2025
Auxiliary request during Opposition procedure - 05
Apr 4, 2025
Auxiliary request during Opposition procedure - 06
Apr 4, 2025
Auxiliary request during Opposition procedure - 07
Apr 4, 2025
Auxiliary request during Opposition procedure - 08
Apr 4, 2025
Citation in opposition procedure - 019
Apr 4, 2025
Citation in opposition procedure - 020
Apr 4, 2025
Citation in opposition procedure - 021
Apr 4, 2025
Citation in opposition procedure - 022
Apr 4, 2025
Consolidated list of cited opposition documents
Apr 4, 2025
Letter accompanying subsequently filed items
Apr 4, 2025
Reply of the patent proprietor to the notice(s) of opposition
Dec 12, 2024
Brief communication - Opposition proceedings
Dec 5, 2024
Communication of a notice of opposition and request to file observations
Dec 5, 2024
Notice of further oppositions to opponent(s)
Nov 26, 2024
Refund of fees
Nov 22, 2024
Communication of a notice of opposition - first information to patent proprietor
Nov 19, 2024
Citation in opposition procedure - 001
Nov 19, 2024
Citation in opposition procedure - 002
Nov 19, 2024
Citation in opposition procedure - 003
Nov 19, 2024
Citation in opposition procedure - 004
Nov 19, 2024
Citation in opposition procedure - 005
Nov 19, 2024
Citation in opposition procedure - 006
Nov 19, 2024
Citation in opposition procedure - 007
Nov 19, 2024
Citation in opposition procedure - 008
Nov 19, 2024
Citation in opposition procedure - 009
Nov 19, 2024
Citation in opposition procedure - 010
Nov 19, 2024
Citation in opposition procedure - 011
Nov 19, 2024
Citation in opposition procedure - 012
Nov 19, 2024
Citation in opposition procedure - 013
Nov 19, 2024
Citation in opposition procedure - 013
Nov 19, 2024
Citation in opposition procedure - 014
Nov 19, 2024
Citation in opposition procedure - 015
Nov 19, 2024
Citation in opposition procedure - 016
Nov 19, 2024
Citation in opposition procedure - 017
Nov 19, 2024
Citation in opposition procedure - 018
Nov 19, 2024
Notice of opposition
Nov 19, 2024
Notice of opposition
Mar 5, 2024
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jan 25, 2024
Decision to grant a European patent
Jan 15, 2024
Information about non-relevance of third-party observations
Dec 21, 2023
(Electronic) Receipt
Dec 21, 2023
Filing of the translations of the claims
Dec 21, 2023
French translation of claims
Dec 21, 2023
German translation of the claims
Dec 21, 2023
Letter accompanying subsequently filed items
Dec 21, 2023
Transmittal of third party observations to applicant
Dec 18, 2023
Citation filed by a third party
Dec 18, 2023
Citation filed by a third party
Dec 18, 2023
Citation filed by a third party
Dec 18, 2023
Citation filed by a third party
Dec 18, 2023
Citation filed by a third party
Dec 18, 2023
Non-patent literature filed by a third party
Dec 18, 2023
Observations by third parties
Dec 18, 2023
Observations by third parties
Nov 16, 2023
Annex to the communication about intention to grant a European patent
Nov 16, 2023
Bibliographic data of the European patent application
Nov 16, 2023
Communication about intention to grant a European patent
Nov 16, 2023
Intention to grant (signatures)
Nov 16, 2023
Text intended for grant (clean copy)
Nov 16, 2023
Text intended for grant (version for approval)
Sep 27, 2023
(Electronic) Receipt
Sep 27, 2023
Amended claims with annotations
Sep 27, 2023
Claims
Sep 27, 2023
Letter accompanying subsequently filed items
Sep 27, 2023
Non-patent literature cited during the examination procedure
Sep 27, 2023
Reply to communication from the Examining Division
Jul 25, 2023
Grant of extension of time limit (examination procedure)
Jul 20, 2023
(Electronic) Receipt
Jul 20, 2023
Request for extension of time limit to communication from the Examining Division
Mar 17, 2023
Annex to the communication
Mar 17, 2023
Communication from the Examining Division
Feb 14, 2023
Transmittal of third party observations to applicant
Feb 9, 2023
Observations by third parties
Jan 18, 2023
(Electronic) Receipt
Jan 18, 2023
Amended claims with annotations
Jan 18, 2023
Amended claims with annotations
Jan 18, 2023
Amended claims with annotations
Jan 18, 2023
Amended description with annotations
Jan 18, 2023
Claims
Jan 18, 2023
Claims
Jan 18, 2023
Claims
Jan 18, 2023
Description
Jan 18, 2023
Letter accompanying subsequently filed items
Jan 18, 2023
Non-patent literature cited during the examination procedure
Jan 18, 2023
Non-patent literature cited during the examination procedure
Jan 18, 2023
Reply to communication from the Examining Division
Sep 30, 2022
Transmittal of third party observations to applicant
Sep 27, 2022
Observations by third parties
Sep 8, 2022
Annex to the communication
Sep 8, 2022
Communication from the Examining Division
Jul 4, 2022
(Electronic) Receipt
Jul 4, 2022
Amended claims with annotations
Jul 4, 2022
Amended claims with annotations
Jul 4, 2022
Amended claims with annotations
Jul 4, 2022
Claims
Jul 4, 2022
Claims
Jul 4, 2022
Claims
Jul 4, 2022
Letter accompanying subsequently filed items
Jul 4, 2022
Reply to communication from the Examining Division
Mar 4, 2022
Annex to a communication
Mar 4, 2022
Annex to a communication
Mar 4, 2022
Annex to a communication
Mar 4, 2022
Annex to a communication
Mar 4, 2022
Annex to a communication
Mar 4, 2022
Annex to a communication
Mar 4, 2022
Annex to the communication
Mar 4, 2022
Communication from the Examining Division
Feb 28, 2022
Examination started
Dec 6, 2021
(Electronic) Receipt
Dec 6, 2021
Amended claims with annotations
Dec 6, 2021
Claims
Dec 6, 2021
Letter accompanying subsequently filed items
Dec 6, 2021
Reply from applicant/patentee regarding third party observations
Oct 14, 2021
Transmittal of third party observations to applicant
Oct 11, 2021
Observations by third parties
Oct 11, 2021
Patent document filed by a Third party
Oct 11, 2021
Patent document filed by a Third party
Oct 11, 2021
Patent document filed by a Third party
Oct 11, 2021
Patent document filed by a Third party
Oct 11, 2021
Patent document filed by a Third party
Oct 11, 2021
Patent document filed by a Third party
Oct 11, 2021
Patent document filed by a Third party
Jan 21, 2021
Document concerning representation
Nov 2, 2020
(Electronic) Receipt
Nov 2, 2020
Amended claims filed after receipt of (European) search report
Nov 2, 2020
Amended claims with annotations
Nov 2, 2020
Amendments received before examination
Nov 2, 2020
Letter accompanying subsequently filed items
Jun 24, 2020
Notification on forthcoming publication of bibliographic data
Apr 21, 2020
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Apr 17, 2020
Communication to designated inventor
Apr 17, 2020
Communication to designated inventor
Apr 17, 2020
Communication to designated inventor
Apr 17, 2020
Communication to designated inventor
Apr 17, 2020
Communication to designated inventor
Apr 17, 2020
Communication to designated inventor
Apr 17, 2020
Communication to designated inventor
Apr 17, 2020
Communication to designated inventor
Apr 14, 2020
Communication confirming withdrawal from representation
Apr 14, 2020
Communication of amended entries concerning the representative
Mar 31, 2020
Copy of the international preliminary report on patentability
Mar 31, 2020
Submission concerning change of applicant's representative
Mar 30, 2020
(Electronic) Receipt
Mar 30, 2020
Amended claims filed after receipt of (European) search report
Mar 30, 2020
Amended claims with annotations
Mar 30, 2020
Request for entry into the European phase
Mar 17, 2020
Notification of the recording of a change
Mar 17, 2020
Notification of the recording of a change
Mar 3, 2020
Notification of the recording of a change
Mar 3, 2020
Notification of the recording of a change
Jan 27, 2020
Notification of the recording of a change
Jan 27, 2020
Notification of the recording of a change
Jan 24, 2020
Information on entry into European phase
Apr 11, 2019
Priority document (electronically transmitted)
Mar 21, 2019
Copy of the international search report
Mar 21, 2019
Published international application - A1
Jan 3, 2019
ISR: cited documents
Jan 2, 2019
Written opinion of the ISA, boxes No. I to VIII
Jan 2, 2019
Written opinion of the ISA, cover sheet
Jan 2, 2019
Written opinion of the ISA, supplemental box
Nov 19, 2018
Notification of receipt of Search copy
Nov 12, 2018
Incoming letter related to ISA procedure
Nov 12, 2018
Notification Concerning Payment of Prescribed Fees (copy for ISA/EP)
Oct 29, 2018
Abstract
Oct 29, 2018
Annex
Oct 29, 2018
Claims
Oct 29, 2018
Description
Oct 29, 2018
Drawings
Oct 29, 2018
Fee calculation sheet for an international application
Oct 29, 2018
Notification Concerning Payment of Prescribed Fees (copy for ISA/EP)
Oct 29, 2018
Notification of the International Application Number and of the International Filing Date (copy for ISA/EP)
Oct 29, 2018
Request form for international application (copy for ISA/EP)

EP3681298

CORN PRODUCTS

Application Number: EP18796517A
Filing Date: Sep 11, 2018
Status: Granted And Under Opposition; Jan 19, 2024
Publication Date: Feb 21, 2024
External Links: Slate, Register , Google Patents

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Thermally Inhibited Waxy Cassava Starch

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Dossier Documents

EP3681298