The weekly litigation news digest is live. Subscribe now
The patent EP3045726 was granted to Kaeser Kompressoren on Dec 25, 2019. The application was filed on Mar 22, 2013 under application number EP16151509A. 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 |
|---|---|---|---|
| ATLAS COPCO | Sep 25, 2020 | VO | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP20130159616 |
| DESCRIPTION | EP20130159618 |
| OPPOSITION | DE102008064491 |
| OPPOSITION | DE102011079732 |
| OPPOSITION | DE19826169 |
| OPPOSITION | US2003120619 |
| SEARCH | DE102005006410 |
| SEARCH | DE102008064491 |
| SEARCH | DE102011079732 |
| SEARCH | DE19826169 |
| SEARCH | EP1672454 |
| SEARCH | US2003097243 |
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
Sep 1, 2025
Aug 25, 2025
(Electronic) Receipt
Appeal
Aug 25, 2025
Aug 25, 2025
Jul 22, 2025
Jul 22, 2025
Jul 22, 2025
Jul 17, 2025
May 12, 2025
Feb 26, 2025
Feb 21, 2025
(Electronic) Receipt
Appeal
Feb 21, 2025
Feb 21, 2025
Feb 19, 2025
Feb 19, 2025
Nov 19, 2024
Nov 14, 2024
(Electronic) Receipt
Appeal
Nov 14, 2024
Nov 14, 2024
Jul 12, 2024
Jul 9, 2024
(Electronic) Receipt
Appeal
Jul 9, 2024
Jul 9, 2024
May 8, 2024
May 3, 2024
(Electronic) Receipt
Appeal
May 3, 2024
May 3, 2024
May 3, 2024
May 3, 2024
May 3, 2024
May 3, 2024
Feb 29, 2024
Feb 26, 2024
(Electronic) Receipt
Appeal
Feb 26, 2024
Feb 26, 2024
Jan 31, 2024
Jan 26, 2024
(Electronic) Receipt
Appeal
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Jan 26, 2024
Reply to appeal
Appeal
Sep 25, 2023
Sep 19, 2023
(Electronic) Receipt
Appeal
Sep 19, 2023
Sep 19, 2023
Jul 25, 2023
Jul 25, 2023
Jul 18, 2023
(Electronic) Receipt
Appeal
Jul 18, 2023
Jul 18, 2023
Notice of appeal
Appeal
May 22, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
Means of redress
OPPO
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
May 19, 2023
Apr 5, 2023
Mar 29, 2023
Mar 24, 2023
Mar 20, 2023
Mar 20, 2023
Feb 3, 2023
Feb 3, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 26, 2023
Jan 24, 2023
Jan 24, 2023
Jan 24, 2023
Dec 6, 2022
Dec 6, 2022
Sep 30, 2022
Sep 29, 2022
Sep 29, 2022
Sep 29, 2022
Sep 29, 2022
Dec 11, 2020
Dec 4, 2020
Dec 4, 2020
Dec 4, 2020
Oct 9, 2020
Oct 9, 2020
Oct 1, 2020
Sep 25, 2020
Sep 25, 2020
Sep 25, 2020
Sep 25, 2020
Sep 25, 2020
Sep 25, 2020
Sep 25, 2020
Sep 25, 2020
Jan 3, 2020
Nov 28, 2019
Decision to grant a European patent
Search/Exam
Nov 19, 2019
(Electronic) Receipt
Search/Exam
Nov 19, 2019
Filing of the translations of the claims
Search/Exam
Nov 19, 2019
Letter accompanying subsequently filed items
Search/Exam
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Intention to grant (signatures)
Search/Exam
Aug 13, 2019
Text intended for grant (clean copy)
Search/Exam
Aug 13, 2019
Jul 2, 2019
(Electronic) Receipt
Search/Exam
Jul 2, 2019
Amended claims with annotations
Search/Exam
Jul 2, 2019
Claims
Search/Exam
Jul 2, 2019
English translation of the claims
Search/Exam
Jul 2, 2019
French translation of claims
Search/Exam
Jul 2, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 2, 2019
Feb 25, 2019
Feb 25, 2019
Feb 25, 2019
Intention to grant (signatures)
Search/Exam
Feb 25, 2019
Text intended for grant (clean copy)
Search/Exam
Feb 25, 2019
Feb 6, 2019
Examination started
Search/Exam
Jan 28, 2019
Jan 15, 2019
(Electronic) Receipt
Search/Exam
Jan 15, 2019
Enquiry as to the processing of the file
Search/Exam
Jan 15, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 20, 2017
(Electronic) Receipt
Search/Exam
Jan 20, 2017
Jan 20, 2017
Amended claims with annotations
Search/Exam
Jan 20, 2017
Jan 20, 2017
Amended description with annotations
Search/Exam
Jan 20, 2017
Amendments received before examination
Search/Exam
Jan 20, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 25, 2016
Jun 22, 2016
Notification of forthcoming publication
Search/Exam
Jun 22, 2016
Refund of fees
Search/Exam
Jun 16, 2016
Jun 16, 2016
European search opinion
Search/Exam
Jun 16, 2016
European search report
Search/Exam
Jun 16, 2016
Information on Search Strategy
Search/Exam
Jun 10, 2016
Submission concerning representation
Search/Exam
Jun 10, 2016
Submission concerning representation
Search/Exam
Mar 9, 2016
Communication to designated inventor
Search/Exam
Mar 9, 2016
Communication to designated inventor
Search/Exam
Mar 9, 2016
Communication to designated inventor
Search/Exam
Mar 3, 2016
Priority search results copy provided by EPO
Search/Exam
Mar 3, 2016
Priority search results copy provided by EPO
Search/Exam
Jan 15, 2016
Abstract
Search/Exam
Jan 15, 2016
Jan 15, 2016
Annex
Search/Exam
Jan 15, 2016
Claims
Search/Exam
Jan 15, 2016
Description
Search/Exam
Jan 15, 2016
Designation of inventor
Search/Exam
Jan 15, 2016
Drawings
Search/Exam
Jan 15, 2016
Apr 17, 2014
Priority search results copy provided by EPO
Search/Exam
Apr 17, 2014
Priority search results copy provided by EPO
Search/Exam
May 10, 2013
Priority document
Search/Exam
May 10, 2013
Priority document
Search/Exam