The weekly litigation news digest is live. Subscribe now
The patent EP3521207 was granted to K FEE System on Jan 22, 2020. The application was filed on Jul 22, 2011 under application number EP19165219A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| NESTLE | Jan 22, 2020 | BIRD & BIRD HAMBURG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1772398 |
| DESCRIPTION | US5285041 |
| DESCRIPTION | WO0199047 |
| DESCRIPTION | WO0228241 |
| DESCRIPTION | WO2005044067 |
| DESCRIPTION | WO2011141532 |
| OPPOSITION | DE3432339 |
| OPPOSITION | EP0455337 |
| OPPOSITION | EP0638486 |
| OPPOSITION | EP1772398 |
| OPPOSITION | EP1849718 |
| OPPOSITION | JP2003235733 |
| OPPOSITION | US2002148356 |
| OPPOSITION | US2010078480 |
| OPPOSITION | US3501896 |
| OPPOSITION | US5243164 |
| OPPOSITION | US5285041 |
| OPPOSITION | WO0160712 |
| OPPOSITION | WO0199047 |
| OPPOSITION | WO0228241 |
| OPPOSITION | WO2005044067 |
| OPPOSITION | WO2010026053 |
| OPPOSITION | WO2010041179 |
| OPPOSITION | WO2010076761 |
| OPPOSITION | WO2011047836 |
| OPPOSITION | WO2011141532 |
| SEARCH | US2005150391 |
| SEARCH | US2007157821 |
| SEARCH | US2010078480 |
| SEARCH | US5285041 |
| SEARCH | WO02078498 |
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
Get instant alerts for new documents
Dec 15, 2025
Nov 24, 2025
Sep 29, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Jun 27, 2025
Jun 27, 2025
Apr 10, 2025
Non-public annex
OPPO
Nov 29, 2024
Jul 31, 2024
Annex
OPPO
Jul 31, 2024
Jul 31, 2024
Jul 30, 2024
Jul 30, 2024
Nov 2, 2023
Nov 2, 2023
Jul 13, 2023
Jul 6, 2023
Annex
OPPO
Jul 6, 2023
Feb 23, 2023
Feb 21, 2023
Feb 21, 2023
Aug 5, 2022
Aug 5, 2022
Jun 10, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
Jun 2, 2022
May 4, 2022
Communication from the Legal Division
Search/Exam
Mar 24, 2022
Mar 24, 2022
Letter to the Legal Division
Search/Exam
Mar 24, 2022
Mar 24, 2022
Mar 23, 2022
Mar 23, 2022
Mar 22, 2022
Mar 22, 2022
Mar 22, 2022
Mar 22, 2022
Mar 22, 2022
Mar 22, 2022
Mar 22, 2022
Mar 17, 2022
Annex
OPPO
Mar 17, 2022
Annex
OPPO
Mar 17, 2022
Annex
OPPO
Mar 17, 2022
Annex
OPPO
Mar 17, 2022
Annex
OPPO
Mar 17, 2022
Mar 17, 2022
Mar 17, 2022
Mar 17, 2022
Mar 17, 2022
Mar 17, 2022
Mar 15, 2022
Mar 15, 2022
Annex
OPPO
Mar 15, 2022
Annex
OPPO
Mar 15, 2022
Annex
OPPO
Mar 15, 2022
Mar 15, 2022
Mar 14, 2022
Mar 11, 2022
Mar 8, 2022
Mar 8, 2022
Mar 8, 2022
Dec 2, 2021
Nov 30, 2021
Nov 30, 2021
Nov 30, 2021
Nov 30, 2021
Nov 30, 2021
Nov 30, 2021
Mar 18, 2021
Mar 18, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Mar 15, 2021
Nov 5, 2020
Nov 5, 2020
Oct 26, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Oct 21, 2020
Feb 3, 2020
Jan 27, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 22, 2020
Jan 8, 2020
Decision to grant a European patent
Search/Exam
Dec 9, 2019
(Electronic) Receipt
Search/Exam
Dec 9, 2019
English translation of the claims
Search/Exam
Dec 9, 2019
Filing of the translations of the claims
Search/Exam
Dec 9, 2019
French translation of claims
Search/Exam
Dec 9, 2019
Letter accompanying subsequently filed items
Search/Exam
Dec 3, 2019
Dec 3, 2019
Dec 3, 2019
Intention to grant (signatures)
Search/Exam
Dec 3, 2019
Text intended for grant (clean copy)
Search/Exam
Dec 3, 2019
Oct 21, 2019
Deficiencies in an enquiry
Search/Exam
Oct 8, 2019
(Electronic) Receipt
Search/Exam
Oct 8, 2019
Oct 8, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 16, 2019
Examination started
Search/Exam
Sep 11, 2019
(Electronic) Receipt
Search/Exam
Sep 11, 2019
Sep 11, 2019
Letter accompanying subsequently filed items
Search/Exam
Sep 11, 2019
Aug 29, 2019
(Electronic) Receipt
Search/Exam
Aug 29, 2019
Aug 29, 2019
Amended claims with annotations
Search/Exam
Aug 29, 2019
Aug 29, 2019
Amended description with annotations
Search/Exam
Aug 29, 2019
Amendments received before examination
Search/Exam
Aug 29, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 12, 2019
Jul 10, 2019
Notification of forthcoming publication
Search/Exam
Jun 13, 2019
Refund of fees
Search/Exam
May 23, 2019
May 23, 2019
European search opinion
Search/Exam
May 23, 2019
European search report
Search/Exam
May 23, 2019
Information on Search Strategy
Search/Exam
May 17, 2019
Communication to designated inventor
Search/Exam
May 17, 2019
Communication to designated inventor
Search/Exam
May 17, 2019
Modified abstract
Search/Exam
Apr 16, 2019
Search started
Search/Exam
Mar 26, 2019
Abstract
Search/Exam
Mar 26, 2019
Mar 26, 2019
Claims
Search/Exam
Mar 26, 2019
Description
Search/Exam
Mar 26, 2019
Designation of inventor
Search/Exam
Mar 26, 2019
Drawings
Search/Exam
Mar 26, 2019
Request for grant of a European patent
Search/Exam
Dec 13, 2016
Priority search results
Search/Exam
Feb 14, 2012
Feb 14, 2012
Feb 14, 2012