Pump Unit

Patent No. EP2453555 (titled "Pump Unit") was filed by Grundfos Management on Mar 15, 2011. The application was issued on Feb 8, 2023.

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
KSB	Nov 8, 2023	VON TIETZEN UND HENNIG

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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Mar 27, 2025
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Mar 27, 2025
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Dec 20, 2024
Decision of the Opposition Division and instruction
Dec 20, 2024
Decision revoking the European patent
Dec 20, 2024
Decision revoking the European patent
Dec 20, 2024
Grounds for the decision (Annex) - opposition
Dec 20, 2024
Means of redress
Dec 20, 2024
Scanned annex to a communication - opposition procedure
Dec 6, 2024
Notification concerning the date of oral proceedings
Dec 6, 2024
Notification concerning the date of oral proceedings
Dec 2, 2024
Brief communication - Opposition proceedings
Nov 29, 2024
(Electronic) Receipt
Nov 29, 2024
Letter accompanying subsequently filed items
Nov 29, 2024
Written submission in preparation to/during oral proceedings
Oct 14, 2024
Brief communication - Opposition proceedings
Oct 11, 2024
Brief communication - Opposition proceedings
Oct 10, 2024
(Electronic) Receipt
Oct 10, 2024
(Electronic) Receipt
Oct 10, 2024
Amended description with annotations
Oct 10, 2024
Amended description with annotations
Oct 10, 2024
Amended description with annotations
Oct 10, 2024
Amended description with annotations
Oct 10, 2024
Amended description with annotations
Oct 10, 2024
Description
Oct 10, 2024
Description
Oct 10, 2024
Description
Oct 10, 2024
Description
Oct 10, 2024
Description
Oct 10, 2024
Description
Oct 10, 2024
Description
Oct 10, 2024
Letter accompanying subsequently filed items
Oct 10, 2024
Letter accompanying subsequently filed items
Oct 10, 2024
Written submission in preparation to/during oral proceedings
Oct 10, 2024
Written submission in preparation to/during oral proceedings
Jul 10, 2024
Annex to the communication - opposition
Jul 10, 2024
Scanned annex to a communication - opposition procedure
Jul 10, 2024
Summons to attend oral proceedings
Jul 10, 2024
Summons to attend oral proceedings
Mar 25, 2024
Brief communication - Opposition proceedings
Mar 22, 2024
(Electronic) Receipt
Mar 22, 2024
Auxiliary request during Opposition procedure
Mar 22, 2024
Auxiliary request during Opposition procedure
Mar 22, 2024
Auxiliary request during Opposition procedure
Mar 22, 2024
Auxiliary request during Opposition procedure
Mar 22, 2024
Auxiliary request during Opposition procedure
Mar 22, 2024
Auxiliary request during Opposition procedure
Mar 22, 2024
Auxiliary request during Opposition procedure
Mar 22, 2024
Auxiliary request during Opposition procedure
Mar 22, 2024
Auxiliary request during Opposition procedure - 01
Mar 22, 2024
Auxiliary request during Opposition procedure - 02
Mar 22, 2024
Auxiliary request during Opposition procedure - 03
Mar 22, 2024
Auxiliary request during Opposition procedure - 04
Mar 22, 2024
Auxiliary request during Opposition procedure - 05
Mar 22, 2024
Auxiliary request during Opposition procedure - 06
Mar 22, 2024
Auxiliary request during Opposition procedure - 07
Mar 22, 2024
Auxiliary request during Opposition procedure - 08
Mar 22, 2024
Letter accompanying subsequently filed items
Mar 22, 2024
Reply of the patent proprietor to the notice(s) of opposition
Nov 23, 2023
Communication of a notice of opposition and request to file observations
Nov 23, 2023
Notice of further oppositions to opponent(s)
Nov 15, 2023
Communication of a notice of opposition - first information to patent proprietor
Nov 8, 2023
(Electronic) Receipt
Nov 8, 2023
Any annexes (other than citation) to an opposition letter
Nov 8, 2023
Any annexes (other than citation) to an opposition letter
Nov 8, 2023
Citation in opposition procedure - 001
Nov 8, 2023
Citation in opposition procedure - 002
Nov 8, 2023
Citation in opposition procedure - 003
Nov 8, 2023
Citation in opposition procedure - 004
Nov 8, 2023
Citation in opposition procedure - 005
Nov 8, 2023
Citation in opposition procedure - 006
Nov 8, 2023
Citation in opposition procedure - 007
Nov 8, 2023
Citation in opposition procedure - 008
Nov 8, 2023
Citation in opposition procedure - 009
Nov 8, 2023
Citation in opposition procedure - 010
Nov 8, 2023
Citation in opposition procedure - 011
Nov 8, 2023
Citation in opposition procedure - 012
Nov 8, 2023
Consolidated list of cited opposition documents
Nov 8, 2023
Letter accompanying subsequently filed items
Nov 8, 2023
Notice of opposition
Feb 21, 2023
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jan 12, 2023
Decision to grant a European patent
Dec 22, 2022
(Electronic) Receipt
Dec 22, 2022
English translation of the claims
Dec 22, 2022
Filing of the translations of the claims
Dec 22, 2022
French translation of claims
Dec 22, 2022
Letter accompanying subsequently filed items
Aug 16, 2022
Bibliographic data of the European patent application
Aug 16, 2022
Communication about intention to grant a European patent
Aug 16, 2022
Intention to grant (signatures)
Aug 16, 2022
Text intended for grant (clean copy)
Aug 16, 2022
Text intended for grant (version for approval)
Jun 15, 2022
Notification concerning the date of oral proceedings
Jun 10, 2022
(Electronic) Receipt
Jun 10, 2022
Letter accompanying subsequently filed items
Jun 10, 2022
Written submission in preparation to/during oral proceedings
May 20, 2022
(Electronic) Receipt
May 20, 2022
Amended claims with annotations
May 20, 2022
Amended claims with annotations
May 20, 2022
Amended claims with annotations
May 20, 2022
Amended claims with annotations
May 20, 2022
Amended claims with annotations
May 20, 2022
Amended claims with annotations
May 20, 2022
Amended description with annotations
May 20, 2022
Amended description with annotations
May 20, 2022
Claims
May 20, 2022
Claims
May 20, 2022
Claims
May 20, 2022
Claims
May 20, 2022
Claims
May 20, 2022
Claims
May 20, 2022
Description
May 20, 2022
Description
May 20, 2022
Letter accompanying subsequently filed items
May 20, 2022
Oral proceedings: reply to date proposed
May 20, 2022
Written submission in preparation to/during oral proceedings
Jul 13, 2021
Advice of delivery
Jul 7, 2021
Acknowledgement of a document
Jul 7, 2021
Annex to the communication
Jul 7, 2021
Summons to attend oral proceedings
Dec 23, 2019
(Electronic) Receipt
Dec 23, 2019
Amended claims with annotations
Dec 23, 2019
Claims
Dec 23, 2019
Letter accompanying subsequently filed items
Dec 23, 2019
Reply to communication from the Examining Division
Nov 12, 2019
Grant of extension of time limit (examination procedure)
Nov 5, 2019
(Electronic) Receipt
Nov 5, 2019
Letter accompanying subsequently filed items
Nov 5, 2019
Request for extension of time limit to communication from the Examining Division
Jun 27, 2019
Annex to the communication
Jun 27, 2019
Communication from the Examining Division
Jun 17, 2019
Examination started
Mar 14, 2019
Notification regarding date of start of examination with possibility to withdraw
Feb 26, 2019
Communication of amended entries concerning the representative
Jan 22, 2019
Submission concerning representation
Jan 17, 2019
Submission concerning change of applicant's representative
Jan 17, 2019
Submission concerning representation
Nov 16, 2017
(Electronic) Receipt
Nov 16, 2017
Letter accompanying subsequently filed items
Nov 16, 2017
Priority search results
Nov 16, 2017
Priority search results
Nov 16, 2017
Priority search results
Nov 16, 2017
Reply to invitation to file a copy of priority search results
Oct 23, 2017
Invitation to file a copy of search results(priority)
Oct 4, 2017
(Electronic) Receipt
Oct 4, 2017
Amended claims filed after receipt of (European) search report
Oct 4, 2017
Amended claims with annotations
Oct 4, 2017
Amended description filed after receipt of (European) search report
Oct 4, 2017
Amended description with annotations
Oct 4, 2017
Amended drawings filed after receipt of (European) search report
Oct 4, 2017
Amendments received before examination
Oct 4, 2017
Letter accompanying subsequently filed items
Apr 10, 2017
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Mar 7, 2017
Payment of fees and costs
Mar 3, 2017
Communication regarding the transmission of the European search report
Mar 3, 2017
European search opinion
Mar 3, 2017
European search report
Mar 3, 2017
Information on Search Strategy
Mar 2, 2016
Payment of fees and costs
Mar 4, 2015
Payment of fees and costs
Apr 18, 2012
Notification of forthcoming publication
Nov 4, 2011
Designation of inventor
Nov 4, 2011
Letter concerning the inventor
May 25, 2011
Letter concerning the priority
May 25, 2011
Priority document
May 25, 2011
Priority document
Apr 8, 2011
Deficiency in designation of inventor
Mar 16, 2011
Abstract
Mar 16, 2011
Claims
Mar 16, 2011
Description
Mar 16, 2011
Drawings
Mar 16, 2011
Request for grant of a European patent
Mar 15, 2011
Abstract
Mar 15, 2011
Claims
Mar 15, 2011
Description
Mar 15, 2011
Drawings
Mar 15, 2011
Request for grant of a European patent

EP2453555

GRUNDFOS MANAGEMENT

Application Number: EP11002125A
Filing Date: Mar 15, 2011
Status: Revoked; Mar 28, 2025
Publication Date: Feb 8, 2023
External Links: Slate, Register , Google Patents

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Dossier Documents

EP2453555