Compressor Device

Patent No. EP3214313 (titled "Compressor Device") was filed by Atlas Copco on Sep 2, 2014. The application was issued on Nov 5, 2025.

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
KAESER KOMPRESSOREN	Dec 23, 2021	MEISSNER BOLTE PARTNERSCHAFT MBB

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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Jan 21, 2026
Request for change of client data cannot be registered anymore
Jan 15, 2026
(Electronic) Receipt
Jan 15, 2026
Letter accompanying subsequently filed items
Jan 15, 2026
Submission concerning change of proprietor's representative
Oct 9, 2025
Decision to maintain the European patent in amended form
Oct 9, 2025
Decision to maintain the European patent in amended form
Sep 30, 2025
(Electronic) Receipt
Sep 30, 2025
Filing of the translation of the amended claims
Sep 30, 2025
French translation of claims
Sep 30, 2025
German translation of the claims
Jul 22, 2025
Communication of bibliographic data
Jul 22, 2025
Communication to opponent concerning maintenance
Jul 22, 2025
Communication with request to file translations
Jul 17, 2025
Maintenance of the patent with the documents specified in the final decision
Apr 1, 2025
Annex to the communication - opposition
Apr 1, 2025
Brief communication - Opposition proceedings
Apr 1, 2025
Brief communication - Opposition proceedings
Apr 1, 2025
Druckexemplar in opposition procedure
Apr 1, 2025
Grounds for the decision (Annex) - opposition
Apr 1, 2025
Interlocutory decision in opposition proceedings
Apr 1, 2025
Interlocutory decision in opposition proceedings
Apr 1, 2025
Means of redress
Apr 1, 2025
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 1, 2025
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 1, 2025
Provision of a copy of the minutes - opposition procedure
Apr 1, 2025
Provision of a copy of the minutes - opposition procedure
Apr 1, 2025
Scanned annex to a communication - opposition procedure
Apr 1, 2025
Scanned annex to a communication - opposition procedure
Mar 28, 2025
Decision of the Opposition Division and instruction
Jan 30, 2025
Information about the result of oral proceedings
Jan 27, 2025
Brief communication - Opposition proceedings
Jan 22, 2025
(Electronic) Receipt
Jan 22, 2025
Letter accompanying subsequently filed items
Jan 22, 2025
Written submission in preparation to/during oral proceedings
Dec 3, 2024
Brief communication - Opposition proceedings
Nov 26, 2024
(Electronic) Receipt
Nov 26, 2024
(Electronic) Receipt
Nov 26, 2024
Letter accompanying subsequently filed items
Nov 26, 2024
Letter accompanying subsequently filed items
Nov 26, 2024
Written submission in preparation to/during oral proceedings
Nov 26, 2024
Written submission in preparation to/during oral proceedings
Oct 10, 2024
Brief communication - Opposition proceedings
Oct 2, 2024
(Electronic) Receipt
Oct 2, 2024
Letter accompanying subsequently filed items
Oct 2, 2024
Written submission in preparation to/during oral proceedings
Jul 10, 2024
Brief communication - Opposition proceedings
Jul 3, 2024
(Electronic) Receipt
Jul 3, 2024
Letter accompanying subsequently filed items
May 22, 2024
Brief communication - Opposition proceedings
May 14, 2024
(Electronic) Receipt
May 14, 2024
Amended description with annotations
May 14, 2024
Amended description with annotations
May 14, 2024
Amended description with annotations
May 14, 2024
Letter accompanying subsequently filed items
May 14, 2024
Written submission in preparation to/during oral proceedings
May 7, 2024
Annex to the communication - opposition
May 7, 2024
Brief communication - Opposition proceedings
May 7, 2024
Brief communication - Opposition proceedings
May 7, 2024
Information concerning oral proceedings
May 7, 2024
Scanned annex to a communication - opposition procedure
May 7, 2024
Summons to attend oral proceedings
May 7, 2024
Summons to attend oral proceedings
Jan 23, 2024
Brief communication - Opposition proceedings
Jan 16, 2024
(Electronic) Receipt
Jan 16, 2024
Letter accompanying subsequently filed items
Jan 16, 2024
Reply from the opponent to submission of proprietor
Nov 8, 2023
Brief communication - Opposition proceedings
Oct 31, 2023
(Electronic) Receipt
Oct 31, 2023
Auxiliary request during Opposition procedure
Oct 31, 2023
Auxiliary request during Opposition procedure
Oct 31, 2023
Auxiliary request during Opposition procedure - 01
Oct 31, 2023
Auxiliary request during Opposition procedure - 02
Oct 31, 2023
Letter accompanying subsequently filed items
Oct 31, 2023
Letter regarding the opposition procedure (no time limit)
Oct 31, 2023
Main request during Opposition procedure
Oct 31, 2023
Main request during Opposition procedure
Aug 31, 2022
Brief communication - Opposition proceedings
Aug 24, 2022
(Electronic) Receipt
Aug 24, 2022
Citation in opposition procedure - 016
Aug 24, 2022
Citation in opposition procedure - 017
Aug 24, 2022
Citation in opposition procedure - 018
Aug 24, 2022
Citation in opposition procedure - 019
Aug 24, 2022
Citation in opposition procedure - 020
Aug 24, 2022
Citation in opposition procedure - 021
Aug 24, 2022
Consolidated list of cited opposition documents
Aug 24, 2022
Letter accompanying subsequently filed items
Aug 24, 2022
Reply from the opponent to submission of proprietor
Jun 1, 2022
Brief communication - Opposition proceedings
May 24, 2022
(Electronic) Receipt
May 24, 2022
Amended description with annotations
May 24, 2022
Auxiliary request during Opposition procedure
May 24, 2022
Auxiliary request during Opposition procedure
May 24, 2022
Auxiliary request during Opposition procedure - 01
May 24, 2022
Auxiliary request during Opposition procedure - 02
May 24, 2022
Description
May 24, 2022
Letter accompanying subsequently filed items
May 24, 2022
Main request during Opposition procedure
May 24, 2022
Main request during Opposition procedure
May 24, 2022
Reply of the patent proprietor to the notice(s) of opposition
Jan 14, 2022
Communication of a notice of opposition and request to file observations
Jan 14, 2022
Notice of further oppositions to opponent(s)
Jan 10, 2022
Communication of a notice of opposition - first information to patent proprietor
Dec 23, 2021
(Electronic) Receipt
Dec 23, 2021
Any annexes (other than citation) to an opposition letter
Dec 23, 2021
Citation in opposition procedure - 001
Dec 23, 2021
Citation in opposition procedure - 001
Dec 23, 2021
Citation in opposition procedure - 002
Dec 23, 2021
Citation in opposition procedure - 003
Dec 23, 2021
Citation in opposition procedure - 004
Dec 23, 2021
Citation in opposition procedure - 005
Dec 23, 2021
Citation in opposition procedure - 006
Dec 23, 2021
Citation in opposition procedure - 007
Dec 23, 2021
Citation in opposition procedure - 008
Dec 23, 2021
Citation in opposition procedure - 009
Dec 23, 2021
Citation in opposition procedure - 010
Dec 23, 2021
Citation in opposition procedure - 011
Dec 23, 2021
Citation in opposition procedure - 012
Dec 23, 2021
Citation in opposition procedure - 013
Dec 23, 2021
Citation in opposition procedure - 014
Dec 23, 2021
Citation in opposition procedure - 015
Dec 23, 2021
Notice of opposition
Dec 23, 2021
Notice of opposition
Apr 6, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 25, 2021
Decision to grant a European patent
Feb 12, 2021
(Electronic) Receipt
Feb 12, 2021
French translation of claims
Feb 12, 2021
German translation of the claims
Feb 12, 2021
Letter accompanying subsequently filed items
Jan 28, 2021
Communication of amended entries concerning the representative
Jan 22, 2021
(Electronic) Receipt
Jan 22, 2021
Letter accompanying subsequently filed items
Jan 22, 2021
Submission concerning change of applicant's representative
Oct 23, 2020
Bibliographic data of the European patent application
Oct 23, 2020
Communication about intention to grant a European patent
Oct 23, 2020
Intention to grant (signatures)
Oct 23, 2020
Text intended for grant (clean copy)
Oct 23, 2020
Text intended for grant (version for approval)
Sep 11, 2020
(Electronic) Receipt
Sep 11, 2020
Letter accompanying subsequently filed items
Sep 11, 2020
Reply to communication from the Examining Division
Jul 13, 2020
Grant of extension of time limit (examination procedure)
Jul 7, 2020
(Electronic) Receipt
Jul 7, 2020
Letter accompanying subsequently filed items
Jul 7, 2020
Request for extension of time limit to communication from the Examining Division
Mar 12, 2020
Annex to the communication
Mar 12, 2020
Communication from the Examining Division
Feb 3, 2020
(Electronic) Receipt
Feb 3, 2020
Amended claims with annotations
Feb 3, 2020
Amended description with annotations
Feb 3, 2020
Claims
Feb 3, 2020
Description
Feb 3, 2020
Letter accompanying subsequently filed items
Feb 3, 2020
Reply to communication from the Examining Division
Oct 14, 2019
Annex to the communication
Oct 14, 2019
Communication from the Examining Division
Jun 28, 2019
(Electronic) Receipt
Jun 28, 2019
Letter accompanying subsequently filed items
Jun 28, 2019
Reply to communication from the Examining Division
May 17, 2019
Communication of amended entries concerning the representative
Mar 18, 2019
Annex to the communication
Mar 18, 2019
Communication from the Examining Division
Mar 12, 2019
Examination started
Aug 31, 2018
(Electronic) Receipt
Aug 31, 2018
Letter accompanying subsequently filed items
Mar 5, 2018
(Electronic) Receipt
Mar 5, 2018
Amended claims filed after receipt of (European) search report
Mar 5, 2018
Amended claims with annotations
Mar 5, 2018
Amended description filed after receipt of (European) search report
Mar 5, 2018
Amended description with annotations
Mar 5, 2018
Amendments received before examination
Mar 5, 2018
Letter accompanying subsequently filed items
Sep 11, 2017
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Aug 17, 2017
Refund of fees
Aug 9, 2017
Notification of forthcoming publication
Aug 7, 2017
Communication regarding the transmission of the European search report
Aug 7, 2017
European search opinion
Aug 7, 2017
European search report
Aug 7, 2017
Information on Search Strategy
Jul 26, 2017
Search started
Jun 9, 2017
(Electronic) Receipt
Jun 9, 2017
Authorisation
Jun 9, 2017
Authorisation
Jun 9, 2017
Designation of inventor
Jun 9, 2017
Letter accompanying subsequently filed items
Jun 2, 2017
Communication to designated inventor
Jun 2, 2017
Communication to designated inventor
Apr 28, 2017
Priority search results copy provided by EPO
Apr 10, 2017
Abstract
Apr 10, 2017
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Apr 10, 2017
Annex
Apr 10, 2017
Claims
Apr 10, 2017
Description
Apr 10, 2017
Designation of inventor
Apr 10, 2017
Drawings
Apr 10, 2017
Priority search results
Apr 10, 2017
Request for grant of a European patent
Mar 31, 2015
Priority document (electronically transmitted)

EP3214313

ATLAS COPCO

Application Number: EP17165818A
Filing Date: Sep 2, 2014
Status: Patent Maintained As Amended; Oct 3, 2025
Publication Date: Nov 5, 2025
External Links: Slate, EP3214313B2, Google Patents

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Compressor Device

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Dossier Documents

EP3214313