The weekly litigation news digest is live. Subscribe now
The patent EP3371443 was granted to KS Kolbenschmidt on Apr 10, 2024. The application was filed on Nov 2, 2016 under application number EP16790990A. 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.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | GB268399 |
| INTERNATIONAL-SEARCH-REPORT | DE102006055251 |
| INTERNATIONAL-SEARCH-REPORT | GB2366607 |
| INTERNATIONAL-SEARCH-REPORT | JPS59168556U |
| INTERNATIONAL-SEARCH-REPORT | WO2007068222 |
| INTERNATIONAL-SEARCH-REPORT | WO2011072657 |
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 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 19, 2025
Dec 15, 2025
Dec 15, 2025
Dec 10, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 3, 2025
Dec 2, 2025
Dec 2, 2025
Dec 2, 2025
Dec 2, 2025
Dec 2, 2025
Dec 2, 2025
Oct 20, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Oct 10, 2025
Sep 9, 2025
Sep 5, 2025
Sep 5, 2025
Aug 22, 2025
Aug 22, 2025
Aug 22, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
Jul 29, 2025
May 23, 2025
May 15, 2025
May 15, 2025
May 15, 2025
Mar 4, 2025
Mar 4, 2025
Feb 24, 2025
Feb 24, 2025
Feb 24, 2025
Jan 22, 2025
Jan 22, 2025
Jan 2, 2025
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Dec 19, 2024
Apr 23, 2024
Mar 14, 2024
Decision to grant a European patent
Search/Exam
Mar 6, 2024
(Electronic) Receipt
Search/Exam
Mar 6, 2024
English translation of the claims
Search/Exam
Mar 6, 2024
Filing of the translations of the claims
Search/Exam
Mar 6, 2024
French translation of claims
Search/Exam
Mar 6, 2024
Letter accompanying subsequently filed items
Search/Exam
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Nov 6, 2023
Intention to grant (signatures)
Search/Exam
Nov 6, 2023
Text intended for grant (clean copy)
Search/Exam
Nov 6, 2023
Apr 20, 2023
Apr 13, 2023
(Electronic) Receipt
Search/Exam
Apr 13, 2023
(Electronic) Receipt
Search/Exam
Apr 13, 2023
Amended claims with annotations
Search/Exam
Apr 13, 2023
Annex
Search/Exam
Apr 13, 2023
Claims
Search/Exam
Apr 13, 2023
Letter accompanying subsequently filed items
Search/Exam
Apr 13, 2023
Letter accompanying subsequently filed items
Search/Exam
Apr 13, 2023
Apr 13, 2023
Dec 21, 2022
Annex to the communication
Search/Exam
Dec 21, 2022
Summons to attend oral proceedings
Search/Exam
Mar 14, 2022
Mar 8, 2022
Annexes in respect of a client data request
Search/Exam
Mar 8, 2022
Letter accompanying subsequently filed items
Search/Exam
Mar 8, 2022
Apr 26, 2021
(Electronic) Receipt
Search/Exam
Apr 26, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 26, 2021
Apr 26, 2021
Request for further processing
Search/Exam
Feb 16, 2021
Nov 6, 2020
Nov 2, 2020
Jul 13, 2020
Annex to the communication
Search/Exam
Jul 13, 2020
Communication from the Examining Division
Search/Exam
Jul 3, 2020
Examination started
Search/Exam
Feb 15, 2019
Jan 24, 2019
Dec 14, 2018
(Electronic) Receipt
Search/Exam
Dec 14, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 14, 2018
Reply to Written Opinion prepared by the EPO
Search/Exam
Aug 16, 2018
Jun 8, 2018
Jun 8, 2018
Communication to designated inventor
Search/Exam
May 23, 2018
Mar 26, 2018
(Electronic) Receipt
Search/Exam
Mar 26, 2018
Request for entry into the European phase
Search/Exam
Mar 16, 2018
Information on entry into European phase
Search/Exam
May 31, 2017
May 11, 2017
Copy of the international search report
Search/Exam
May 11, 2017
Copy of the international search report
Search/Exam
May 11, 2017
Published international application - A1
Search/Exam
Jan 19, 2017
ISR: cited documents
PCTISA
Jan 19, 2017
Jan 18, 2017
Jan 18, 2017
Jan 18, 2017
Jan 9, 2017
Nov 18, 2016
Nov 16, 2016
Nov 11, 2016
Nov 2, 2016
(Electronic) Receipt
PCTRO
Nov 2, 2016
Abstract
PCTRO
Nov 2, 2016
Claims
PCTRO
Nov 2, 2016
Description
PCTRO
Nov 2, 2016
Nov 2, 2016
Drawings
PCTRO
Nov 2, 2016