The patent EP3681298 was granted to Corn Products on Feb 21, 2024. The application was originally filed on Sep 11, 2018 under application number EP18796517A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
Get a free citation report including examiner, opposition, and international search citations.
Get Citation ReportThe 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
Get instant alerts for new documents
Sep 15, 2025
Sep 15, 2025
Sep 15, 2025
Sep 15, 2025
Sep 15, 2025
Aug 1, 2025
Aug 1, 2025
Jul 21, 2025
Jul 16, 2025
Jul 16, 2025
Jul 16, 2025
Jul 16, 2025
Jul 11, 2025
Jul 11, 2025
Jul 11, 2025
Jul 11, 2025
Jul 11, 2025
Apr 10, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Apr 4, 2025
Dec 12, 2024
Dec 5, 2024
Dec 5, 2024
Nov 26, 2024
Refund of fees
OPPO
Nov 22, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Nov 19, 2024
Mar 5, 2024
Jan 25, 2024
Decision to grant a European patent
Search/Exam
Jan 15, 2024
Dec 21, 2023
(Electronic) Receipt
Search/Exam
Dec 21, 2023
Filing of the translations of the claims
Search/Exam
Dec 21, 2023
French translation of claims
Search/Exam
Dec 21, 2023
German translation of the claims
Search/Exam
Dec 21, 2023
Letter accompanying subsequently filed items
Search/Exam
Dec 21, 2023
Dec 18, 2023
Citation filed by a third party
Search/Exam
Dec 18, 2023
Citation filed by a third party
Search/Exam
Dec 18, 2023
Citation filed by a third party
Search/Exam
Dec 18, 2023
Citation filed by a third party
Search/Exam
Dec 18, 2023
Citation filed by a third party
Search/Exam
Dec 18, 2023
Non-patent literature filed by a third party
Search/Exam
Dec 18, 2023
Observations by third parties
Search/Exam
Dec 18, 2023
Observations by third parties
Search/Exam
Nov 16, 2023
Nov 16, 2023
Nov 16, 2023
Nov 16, 2023
Intention to grant (signatures)
Search/Exam
Nov 16, 2023
Text intended for grant (clean copy)
Search/Exam
Nov 16, 2023
Sep 27, 2023
(Electronic) Receipt
Search/Exam
Sep 27, 2023
Amended claims with annotations
Search/Exam
Sep 27, 2023
Claims
Search/Exam
Sep 27, 2023
Letter accompanying subsequently filed items
Search/Exam
Sep 27, 2023
Sep 27, 2023
Jul 25, 2023
Jul 20, 2023
(Electronic) Receipt
Search/Exam
Jul 20, 2023
Mar 17, 2023
Annex to the communication
Search/Exam
Mar 17, 2023
Communication from the Examining Division
Search/Exam
Feb 14, 2023
Feb 9, 2023
Observations by third parties
Search/Exam
Jan 18, 2023
(Electronic) Receipt
Search/Exam
Jan 18, 2023
Amended claims with annotations
Search/Exam
Jan 18, 2023
Amended claims with annotations
Search/Exam
Jan 18, 2023
Amended claims with annotations
Search/Exam
Jan 18, 2023
Amended description with annotations
Search/Exam
Jan 18, 2023
Claims
Search/Exam
Jan 18, 2023
Claims
Search/Exam
Jan 18, 2023
Claims
Search/Exam
Jan 18, 2023
Description
Search/Exam
Jan 18, 2023
Letter accompanying subsequently filed items
Search/Exam
Jan 18, 2023
Jan 18, 2023
Jan 18, 2023
Sep 30, 2022
Sep 27, 2022
Observations by third parties
Search/Exam
Sep 8, 2022
Annex to the communication
Search/Exam
Sep 8, 2022
Communication from the Examining Division
Search/Exam
Jul 4, 2022
(Electronic) Receipt
Search/Exam
Jul 4, 2022
Amended claims with annotations
Search/Exam
Jul 4, 2022
Amended claims with annotations
Search/Exam
Jul 4, 2022
Amended claims with annotations
Search/Exam
Jul 4, 2022
Claims
Search/Exam
Jul 4, 2022
Claims
Search/Exam
Jul 4, 2022
Claims
Search/Exam
Jul 4, 2022
Letter accompanying subsequently filed items
Search/Exam
Jul 4, 2022
Mar 4, 2022
Annex to a communication
Search/Exam
Mar 4, 2022
Annex to a communication
Search/Exam
Mar 4, 2022
Annex to a communication
Search/Exam
Mar 4, 2022
Annex to a communication
Search/Exam
Mar 4, 2022
Annex to a communication
Search/Exam
Mar 4, 2022
Annex to a communication
Search/Exam
Mar 4, 2022
Annex to the communication
Search/Exam
Mar 4, 2022
Communication from the Examining Division
Search/Exam
Feb 28, 2022
Examination started
Search/Exam
Dec 6, 2021
(Electronic) Receipt
Search/Exam
Dec 6, 2021
Amended claims with annotations
Search/Exam
Dec 6, 2021
Claims
Search/Exam
Dec 6, 2021
Letter accompanying subsequently filed items
Search/Exam
Dec 6, 2021
Oct 14, 2021
Oct 11, 2021
Observations by third parties
Search/Exam
Oct 11, 2021
Patent document filed by a Third party
Search/Exam
Oct 11, 2021
Patent document filed by a Third party
Search/Exam
Oct 11, 2021
Patent document filed by a Third party
Search/Exam
Oct 11, 2021
Patent document filed by a Third party
Search/Exam
Oct 11, 2021
Patent document filed by a Third party
Search/Exam
Oct 11, 2021
Patent document filed by a Third party
Search/Exam
Oct 11, 2021
Patent document filed by a Third party
Search/Exam
Jan 21, 2021
Document concerning representation
Search/Exam
Nov 2, 2020
(Electronic) Receipt
Search/Exam
Nov 2, 2020
Nov 2, 2020
Amended claims with annotations
Search/Exam
Nov 2, 2020
Amendments received before examination
Search/Exam
Nov 2, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 24, 2020
Apr 21, 2020
Apr 17, 2020
Communication to designated inventor
Search/Exam
Apr 17, 2020
Communication to designated inventor
Search/Exam
Apr 17, 2020
Communication to designated inventor
Search/Exam
Apr 17, 2020
Communication to designated inventor
Search/Exam
Apr 17, 2020
Communication to designated inventor
Search/Exam
Apr 17, 2020
Communication to designated inventor
Search/Exam
Apr 17, 2020
Communication to designated inventor
Search/Exam
Apr 17, 2020
Communication to designated inventor
Search/Exam
Apr 14, 2020
Apr 14, 2020
Mar 31, 2020
Mar 31, 2020
Mar 30, 2020
(Electronic) Receipt
Search/Exam
Mar 30, 2020
Mar 30, 2020
Amended claims with annotations
Search/Exam
Mar 30, 2020
Request for entry into the European phase
Search/Exam
Mar 17, 2020
Mar 17, 2020
Notification of the recording of a change
Search/Exam
Mar 3, 2020
Mar 3, 2020
Notification of the recording of a change
Search/Exam
Jan 27, 2020
Jan 27, 2020
Notification of the recording of a change
Search/Exam
Jan 24, 2020
Information on entry into European phase
Search/Exam
Apr 11, 2019
Mar 21, 2019
Copy of the international search report
Search/Exam
Mar 21, 2019
Published international application - A1
Search/Exam
Jan 3, 2019
ISR: cited documents
PCTISA
Jan 2, 2019
Jan 2, 2019
Jan 2, 2019
Nov 19, 2018
Nov 12, 2018
Nov 12, 2018
Oct 29, 2018
Abstract
PCTISA
Oct 29, 2018
Annex
PCTISA
Oct 29, 2018
Claims
PCTISA
Oct 29, 2018
Description
PCTISA
Oct 29, 2018
Drawings
PCTISA
Oct 29, 2018
Oct 29, 2018
Oct 29, 2018
Oct 29, 2018