Method For Controlling A Compressor Installation

Patent No. EP2376784 (titled "Method For Controlling A Compressor Installation") was filed by Kaeser Kompressoren on Dec 23, 2009. The application was issued on Mar 21, 2018.

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
WF STEUERUNGSTECHNIK	Dec 18, 2018	LEITNER

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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Aug 21, 2025
Decision of the Enlarged Board of Appeal in review procedure
Aug 21, 2025
Notification of the Decision to the Petitioner / Other party (R)
Aug 21, 2025
Notification of the Decision to the Petitioner / Other party (R)
Jun 23, 2025
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Jun 23, 2025
OP - forwarding minutes to the Petitioner / Other party (R)
Jun 23, 2025
OP - forwarding minutes to the Petitioner / Other party (R)
May 8, 2025
(Electronic) Receipt
May 8, 2025
Letter accompanying subsequently filed items
May 8, 2025
Letter relating to review procedure
Apr 25, 2025
(Electronic) Receipt
Apr 25, 2025
Letter accompanying subsequently filed items
Apr 25, 2025
Letter dealing with oral proceedings during review procedure
Mar 25, 2025
Communication of the Enlarged Board of Appeal during review procedure
Nov 6, 2024
Communication of change of OP (R)
Oct 31, 2024
Order - OP - cancellation or postponing (R)
Oct 29, 2024
(Electronic) Receipt
Oct 29, 2024
Annexes (other than cited documents) regarding review procedure
Oct 29, 2024
Letter accompanying subsequently filed items
Oct 29, 2024
Oral proceedings: Request for postponement
Oct 28, 2024
OP Summons VICO (R)
Oct 23, 2024
Order - OP Summons (R)
Jul 24, 2023
Communication of the Registry during review procedure
Jul 24, 2023
Communication of the Registry during review procedure
Jul 18, 2023
Order from the Enlarged Board of Appeal in review procedure
May 10, 2023
(Electronic) Receipt
May 10, 2023
Letter accompanying subsequently filed items
May 10, 2023
Letter relating to review procedure
Mar 13, 2023
Advice of delivery
Mar 13, 2023
Termination of the opposition proceedings with revocation of patent
Mar 10, 2023
Decision of the Board of Appeal
Mar 10, 2023
Decision of the Board of Appeal
Mar 10, 2023
F3032 Notification(s) of the decision
Mar 10, 2023
F3032 Notification(s) of the decision
Mar 10, 2023
F3032 Notification(s) of the decision
Feb 16, 2023
F3013 Oral Proceedings: Forwarding minutes
Feb 16, 2023
F3013 Oral Proceedings: Forwarding minutes
Feb 16, 2023
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Feb 16, 2023
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Feb 16, 2023
Letter dealing with oral proceedings during the appeal procedure
Feb 16, 2023
Letter dealing with oral proceedings during the appeal procedure
Jan 12, 2023
F3345 Forwarding of submissions to parties
Jan 11, 2023
Letter dealing with oral proceedings during the appeal procedure
Dec 7, 2022
F3345 Forwarding of submissions to parties
Dec 6, 2022
F3345 Forwarding of submissions to parties
Dec 2, 2022
(Electronic) Receipt
Dec 2, 2022
Amended claims with annotations
Dec 2, 2022
Claims
Dec 2, 2022
Letter accompanying subsequently filed items
Dec 2, 2022
Letter dealing with oral proceedings during the appeal procedure
Dec 1, 2022
Letter dealing with oral proceedings during the appeal procedure
Sep 23, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Sep 23, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 31, 2022
Advice of delivery
May 30, 2022
F3011.1 Oral Proceedings: summons
May 30, 2022
F3011.1 Oral Proceedings: summons
May 30, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 30, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 24, 2022
F3010 Oral proceedings: order for summons
Dec 17, 2021
F3345 Forwarding of submissions to parties
Dec 14, 2021
(Electronic) Receipt
Dec 14, 2021
Letter accompanying subsequently filed items
Dec 14, 2021
Reply to appeal
Oct 27, 2021
Composition of the board (T)
Sep 20, 2021
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Sep 9, 2021
Statement of grounds of appeal
Sep 8, 2021
Statement of grounds of appeal
Jul 14, 2021
F3204 Communication of the file number to the parties
Jul 14, 2021
F3204 Communication of the file number to the parties
Jul 8, 2021
Declaration of eligibility for a reduction of fees
Jul 8, 2021
Notice of appeal
May 11, 2021
Advice of delivery
May 6, 2021
Annex to the communication - opposition
May 6, 2021
Decision of the Opposition Division and instruction
May 6, 2021
Decision of the Opposition Division and instruction
May 6, 2021
Decision rejecting the opposition
May 6, 2021
Grounds for the decision (Annex) - opposition
May 6, 2021
Internal form - Opposition/addressees
May 6, 2021
Internal form - Opposition/addressees
May 6, 2021
Means of redress
May 6, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
May 6, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
May 6, 2021
Provision of a copy of the minutes - opposition procedure
May 6, 2021
Scanned annex to a communication - opposition procedure
May 6, 2021
Transmittal of decision / summons - opposition
May 6, 2021
Transmittal of decision / summons - opposition
Jan 28, 2021
Information about the result of oral proceedings
Jan 20, 2021
(Electronic) Receipt
Jan 20, 2021
Annex
Jan 20, 2021
Brief communication - Opposition proceedings
Jan 20, 2021
Letter accompanying subsequently filed items
Jan 20, 2021
Letter regarding the opposition procedure (no time limit)
Jan 15, 2021
Brief communication - Opposition proceedings
Jan 14, 2021
(Electronic) Receipt
Jan 14, 2021
Letter accompanying subsequently filed items
Jan 14, 2021
Letter regarding the opposition procedure (no time limit)
Jan 12, 2021
Annex to the communication - opposition
Jan 12, 2021
Letter regarding the opposition procedure (no time limit)
Jan 12, 2021
Notification concerning the date of oral proceedings
Jan 12, 2021
Notification concerning the date of oral proceedings
Dec 21, 2020
Result of consultation by telephone/in person
Dec 18, 2020
Brief communication - Opposition proceedings
Dec 15, 2020
Brief communication - Opposition proceedings
Dec 15, 2020
Letter regarding the opposition procedure (no time limit)
Dec 10, 2020
(Electronic) Receipt
Dec 10, 2020
Letter accompanying subsequently filed items
Dec 10, 2020
Letter regarding the opposition procedure (no time limit)
Dec 3, 2020
Brief communication - Opposition proceedings
Dec 3, 2020
Notification concerning the date of oral proceedings
Dec 3, 2020
Notification concerning the date of oral proceedings
Dec 1, 2020
Brief communication - Opposition proceedings
Dec 1, 2020
Brief communication - Opposition proceedings
Nov 27, 2020
(Electronic) Receipt
Nov 27, 2020
Auxiliary request during Opposition procedure
Nov 27, 2020
Auxiliary request during Opposition procedure
Nov 27, 2020
Auxiliary request during Opposition procedure
Nov 27, 2020
Auxiliary request during Opposition procedure
Nov 27, 2020
Auxiliary request during Opposition procedure
Nov 27, 2020
Auxiliary request during Opposition procedure
Nov 27, 2020
Auxiliary request during Opposition procedure
Nov 27, 2020
Auxiliary request during Opposition procedure
Nov 27, 2020
Auxiliary request during Opposition procedure - 01
Nov 27, 2020
Auxiliary request during Opposition procedure - 05
Nov 27, 2020
Auxiliary request during Opposition procedure - 06
Nov 27, 2020
Auxiliary request during Opposition procedure - 07
Nov 27, 2020
Auxiliary request during Opposition procedure - 08
Nov 27, 2020
Auxiliary request during Opposition procedure - 09
Nov 27, 2020
Auxiliary request during Opposition procedure - 10
Nov 27, 2020
Auxiliary request during Opposition procedure - 11
Nov 27, 2020
Letter accompanying subsequently filed items
Nov 27, 2020
Letter regarding the opposition procedure (no time limit)
Nov 26, 2020
Letter regarding the opposition procedure (no time limit)
Jun 17, 2020
Advice of delivery
Jun 10, 2020
Advice of delivery
Jun 5, 2020
Acknowledgement of a document
Jun 5, 2020
Acknowledgement of a document
Jun 5, 2020
Summons to attend oral proceedings
Jun 5, 2020
Summons to attend oral proceedings
Jun 3, 2020
Notification concerning the date of oral proceedings
Jun 3, 2020
Notification concerning the date of oral proceedings
May 26, 2020
Information about the result of oral proceedings
May 26, 2020
Oral proceedings: reply to date proposed
May 26, 2020
Oral proceedings: reply to date proposed
May 6, 2020
Brief communication - Opposition proceedings
Apr 29, 2020
Brief communication - Opposition proceedings
Apr 24, 2020
(Electronic) Receipt
Apr 24, 2020
Amended claims with annotations
Apr 24, 2020
Auxiliary request during Opposition procedure
Apr 24, 2020
Letter accompanying subsequently filed items
Apr 24, 2020
Letter regarding the opposition procedure (no time limit)
Apr 23, 2020
Letter regarding the opposition procedure (no time limit)
Apr 15, 2020
Brief communication - Opposition proceedings
Apr 8, 2020
Letter regarding the opposition procedure (no time limit)
Nov 4, 2019
Brief communication - Opposition proceedings
Oct 29, 2019
Request for interpreters during oral proceedings
Oct 21, 2019
Advice of delivery
Oct 21, 2019
Advice of delivery
Oct 21, 2019
Advice of delivery
Oct 21, 2019
Advice of delivery
Oct 18, 2019
Brief communication - Opposition proceedings
Oct 18, 2019
Rejection of request for extension of time limit
Oct 16, 2019
Acknowledgement of a document
Oct 16, 2019
Acknowledgement of a document
Oct 16, 2019
Annex to the communication - opposition
Oct 16, 2019
Information concerning oral proceedings
Oct 16, 2019
Summons to attend oral proceedings
Oct 16, 2019
Summons to attend oral proceedings
Oct 14, 2019
Request for extension of time limit
Aug 22, 2019
Brief communication - Opposition proceedings
Aug 16, 2019
(Electronic) Receipt
Aug 16, 2019
Amended claims with annotations
Aug 16, 2019
Claims
Aug 16, 2019
Letter accompanying subsequently filed items
Aug 16, 2019
Reply to an examination report in opposition proceedings
Jun 25, 2019
Annex to the communication - opposition
Jun 25, 2019
Communication inviting the parties to file observations
Jun 25, 2019
Internal form - Opposition/addressees
May 31, 2019
Brief communication - Opposition proceedings
May 24, 2019
(Electronic) Receipt
May 24, 2019
Amended claims with annotations
May 24, 2019
Amended claims with annotations
May 24, 2019
Amended claims with annotations
May 24, 2019
Amended claims with annotations
May 24, 2019
Amended claims with annotations
May 24, 2019
Amended claims with annotations
May 24, 2019
Amended claims with annotations
May 24, 2019
Amended claims with annotations
May 24, 2019
Any annexes (other than citation) to an opposition letter
May 24, 2019
Auxiliary request during Opposition procedure - 01
May 24, 2019
Auxiliary request during Opposition procedure - 02
May 24, 2019
Auxiliary request during Opposition procedure - 03
May 24, 2019
Auxiliary request during Opposition procedure - 04
May 24, 2019
Auxiliary request during Opposition procedure - 05
May 24, 2019
Auxiliary request during Opposition procedure - 06
May 24, 2019
Auxiliary request during Opposition procedure - 07
May 24, 2019
Auxiliary request during Opposition procedure - 08
May 24, 2019
Letter accompanying subsequently filed items
May 24, 2019
Reply of the patent proprietor to the notice(s) of opposition
Jan 15, 2019
Communication of a notice of opposition and request to file observations
Jan 15, 2019
Notice of further oppositions to opponent(s)
Jan 7, 2019
Communication of a notice of opposition - first information to patent proprietor
Dec 19, 2018
Non-patent literature cited during the opposition procedure
Dec 19, 2018
Notice of opposition
Dec 19, 2018
Patent document cited during the opposition procedure
Dec 19, 2018
Patent document cited during the opposition procedure
Dec 19, 2018
Patent document cited during the opposition procedure
Dec 19, 2018
Patent document cited during the opposition procedure
Dec 19, 2018
Patent document cited during the opposition procedure
Apr 3, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Feb 22, 2018
Decision to grant a European patent
Feb 9, 2018
(Electronic) Receipt
Feb 9, 2018
Filing of the translations of the claims
Feb 9, 2018
Letter accompanying subsequently filed items
Oct 9, 2017
Bibliographic data of the European patent application
Oct 9, 2017
Communication about intention to grant a European patent
Oct 9, 2017
Intention to grant (signatures)
Oct 9, 2017
Text intended for grant (clean copy)
Oct 9, 2017
Text intended for grant (version for approval)
Sep 18, 2017
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Aug 9, 2017
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Aug 1, 2017
(Electronic) Receipt
Aug 1, 2017
Amended claims with annotations
Aug 1, 2017
Claims
Aug 1, 2017
English translation of the claims
Aug 1, 2017
French translation of claims
Aug 1, 2017
Letter accompanying subsequently filed items
Aug 1, 2017
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Apr 5, 2017
Bibliographic data of the European patent application
Apr 5, 2017
Communication about intention to grant a European patent
Apr 5, 2017
Intention to grant (signatures)
Apr 5, 2017
Text intended for grant (clean copy)
Apr 5, 2017
Text intended for grant (version for approval)
Nov 9, 2016
(Electronic) Receipt
Nov 9, 2016
Amended claims with annotations
Nov 9, 2016
Amended description with annotations
Nov 9, 2016
Claims
Nov 9, 2016
Description
Nov 9, 2016
Letter accompanying subsequently filed items
Nov 9, 2016
Reply to communication from the Examining Division
Jul 8, 2016
Annex to the communication
Jul 8, 2016
Communication from the Examining Division
Jun 30, 2016
Examination started
Jun 10, 2016
Submission concerning representation
Jun 10, 2016
Submission concerning representation
Aug 28, 2014
Communication of the registration of a transfer or change of name and/or address
Aug 22, 2014
Submission concerning change of applicant's name
Jul 16, 2014
Refund of fees
Jul 9, 2014
Communication of the registration of a transfer or change of name and/or address
Apr 30, 2014
Annexes in respect of a client data request
Apr 30, 2014
Payment of fees and costs
Apr 30, 2014
Submission concerning change of applicant's name
Aug 3, 2012
Communication of the registration of a transfer or change of name and/or address
Jun 27, 2012
Annexes in respect of a client data request
Jun 27, 2012
Submission concerning change of applicant's name
Mar 7, 2012
Amended claims filed after receipt of (European) search report
Mar 7, 2012
Amended claims with annotations
Mar 7, 2012
Amendments received before examination
Sep 21, 2011
Notification on forthcoming publication of bibliographic data
Sep 7, 2011
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Jul 12, 2011
Reminder for payment period (examination fee/designation fees)
Jul 11, 2011
(Electronic) Receipt
Jul 11, 2011
Copy of the international preliminary report on patentability
Jul 11, 2011
Request for entry into the European phase
Jul 11, 2011
Submission concerning representation
Jul 7, 2011
Copy of the international search report
Jul 7, 2011
Copy of the international search report
Jul 7, 2011
International publication of the international search report
May 18, 2011
Written opinion of the ISA, boxes No. I to VIII
May 18, 2011
Written opinion of the ISA, cover sheet
May 18, 2011
Written opinion of the ISA, supplemental box
May 9, 2011
Information on entry into European phase
Jul 22, 2010
Priority document (electronically transmitted)
Jul 1, 2010
Published international application - A2
Feb 9, 2010
Submission concerning representation
Dec 23, 2009
(Electronic) Receipt
Dec 23, 2009
Abstract
Dec 23, 2009
Claims
Dec 23, 2009
Description
Dec 23, 2009
Drawings
Dec 23, 2009
Submission concerning representation

EP2376784

KAESER KOMPRESSOREN

Application Number: EP09799640A
Filing Date: Dec 23, 2009
Status: Revoked; Mar 13, 2023
Publication Date: Mar 21, 2018
External Links: Slate, Register , Google Patents

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Method For Controlling A Compressor Installation

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Dossier Documents

EP2376784