Contactless Rotary Joint

Patent No. EP2954844 (titled "Contactless Rotary Joint") was filed by Schleifring on Jul 21, 2011. The application was issued on Aug 26, 2020.

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
SIEMENS HEALTHCARE	May 12, 2021	-

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 16, 2026
F3345 Forwarding of submissions to parties
Jan 13, 2026
(Electronic) Receipt
Jan 13, 2026
Letter accompanying subsequently filed items
Jan 13, 2026
Letter dealing with oral proceedings during the appeal procedure
Jan 5, 2026
F3345 Forwarding of submissions to parties
Dec 18, 2025
(Electronic) Receipt
Dec 18, 2025
Letter accompanying subsequently filed items
Dec 18, 2025
Letter dealing with oral proceedings during the appeal procedure
Dec 17, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Dec 17, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Dec 15, 2025
F3022 Oral proceedings: change of board composition
Dec 15, 2025
F3022 Oral proceedings: change of board composition
Dec 15, 2025
F3345 Forwarding of submissions to parties
Dec 10, 2025
(Electronic) Receipt
Dec 10, 2025
Letter accompanying subsequently filed items
Dec 10, 2025
Letter dealing with oral proceedings during the appeal procedure
Dec 10, 2025
Letter dealing with oral proceedings during the appeal procedure
Dec 10, 2025
Request for interpreters during oral proceedings
Dec 3, 2025
F3303.16 Change of composition of the Board (T)
Nov 26, 2025
F3345 Forwarding of submissions to parties
Nov 20, 2025
(Electronic) Receipt
Nov 20, 2025
Letter accompanying subsequently filed items
Nov 20, 2025
Letter dealing with oral proceedings during the appeal procedure
May 9, 2025
F3345 Forwarding of submissions to parties
Apr 29, 2025
Letter dealing with oral proceedings during the appeal procedure
Apr 23, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Apr 23, 2025
F3017 Oral Proceedings: Notification of cancellation/postponing
Apr 16, 2025
F3014 Oral Proceedings: Order cancelling/postponing
Apr 16, 2025
F3345 Forwarding of submissions to parties
Apr 9, 2025
(Electronic) Receipt
Apr 9, 2025
Letter accompanying subsequently filed items
Apr 9, 2025
Oral proceedings: Request for postponement
Apr 3, 2025
F3345 Forwarding of submissions to parties
Mar 31, 2025
(Electronic) Receipt
Mar 31, 2025
Letter accompanying subsequently filed items
Mar 31, 2025
Oral proceedings: Request for postponement
Mar 20, 2025
F3011.1 Oral Proceedings: summons
Mar 20, 2025
F3011.1 Oral Proceedings: summons
Mar 17, 2025
F3010 Oral proceedings: order for summons
Jun 4, 2024
Communication of the registration of a transfer or change of name and/or address
Jun 4, 2024
F3345 Forwarding of submissions to parties
May 28, 2024
(Electronic) Receipt
May 28, 2024
Annexes in respect of a client data request
May 28, 2024
Annexes in respect of a client data request
May 28, 2024
Letter accompanying subsequently filed items
May 28, 2024
Submission concerning change of proprietor's address
Feb 9, 2024
F3345 Forwarding of submissions to parties
Feb 6, 2024
(Electronic) Receipt
Feb 6, 2024
Letter accompanying subsequently filed items
Feb 6, 2024
Letter relating to Appeal Procedure
Jan 19, 2024
Standard Communication Rule 103 (2) EPC
Jan 19, 2024
Standard Communication Rule 103 (2) EPC
Jan 5, 2024
F3345 Forwarding of submissions to parties
Dec 27, 2023
(Electronic) Receipt
Dec 27, 2023
Amended claims with annotations
Dec 27, 2023
Auxiliary request during appeals procedure - 05
Dec 27, 2023
Letter accompanying subsequently filed items
Dec 27, 2023
Letter relating to Appeal Procedure
Nov 8, 2023
F3345 Forwarding of submissions to parties
Nov 7, 2023
F3345 Forwarding of submissions to parties
Nov 3, 2023
(Electronic) Receipt
Nov 3, 2023
Letter accompanying subsequently filed items
Nov 3, 2023
Letter relating to Appeal Procedure
Oct 31, 2023
F3345 Forwarding of submissions to parties
Oct 30, 2023
(Electronic) Receipt
Oct 30, 2023
Letter accompanying subsequently filed items
Oct 30, 2023
Reply to appeal
Oct 25, 2023
(Electronic) Receipt
Oct 25, 2023
Amended claims with annotations
Oct 25, 2023
Auxiliary request during appeals procedure - 07
Oct 25, 2023
Letter accompanying subsequently filed items
Oct 25, 2023
Reply to appeal
Sep 25, 2023
Composition of the board (T)
Jun 22, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jun 22, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Jun 16, 2023
(Electronic) Receipt
Jun 16, 2023
Letter accompanying subsequently filed items
Jun 16, 2023
Statement of grounds of appeal
Jun 14, 2023
(Electronic) Receipt
Jun 14, 2023
Amended claims with annotations
Jun 14, 2023
Amended claims with annotations
Jun 14, 2023
Amended claims with annotations
Jun 14, 2023
Amended claims with annotations
Jun 14, 2023
Amended claims with annotations
Jun 14, 2023
Amended claims with annotations
Jun 14, 2023
Auxiliary request during appeals procedure - 01
Jun 14, 2023
Auxiliary request during appeals procedure - 02
Jun 14, 2023
Auxiliary request during appeals procedure - 03
Jun 14, 2023
Auxiliary request during appeals procedure - 04
Jun 14, 2023
Auxiliary request during appeals procedure - 05
Jun 14, 2023
Auxiliary request during appeals procedure - 06
Jun 14, 2023
Letter accompanying subsequently filed items
Jun 14, 2023
Patent Document cited during the appeal procedure
Jun 14, 2023
Statement of grounds of appeal
Apr 21, 2023
F3204 Communication of the file number to the parties
Apr 21, 2023
F3204 Communication of the file number to the parties
Apr 18, 2023
(Electronic) Receipt
Apr 18, 2023
(Electronic) Receipt
Apr 18, 2023
Letter accompanying subsequently filed items
Apr 18, 2023
Letter accompanying subsequently filed items
Apr 18, 2023
Notice of appeal
Apr 18, 2023
Notice of appeal
Feb 10, 2023
Advice of delivery
Feb 9, 2023
Advice of delivery
Feb 8, 2023
Annex to the communication - opposition
Feb 8, 2023
Decision of the Opposition Division and instruction
Feb 8, 2023
Druckexemplar in opposition procedure
Feb 8, 2023
Grounds for the decision (Annex) - opposition
Feb 8, 2023
Interlocutory decision in opposition proceedings
Feb 8, 2023
Interlocutory decision in opposition proceedings
Feb 8, 2023
Means of redress
Feb 8, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 8, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Feb 8, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Feb 8, 2023
Provision of a copy of the minutes - opposition procedure
Feb 8, 2023
Provision of a copy of the minutes - opposition procedure
Feb 8, 2023
Scanned annex to a communication - opposition procedure
Feb 8, 2023
Scanned annex to a communication - opposition procedure
Feb 8, 2023
Scanned annex to a communication - opposition procedure
Feb 8, 2023
Scanned annex to a communication - opposition procedure
Feb 8, 2023
Scanned annex to a communication - opposition procedure
Feb 8, 2023
Scanned annex to a communication - opposition procedure
Feb 8, 2023
Scanned annex to a communication - opposition procedure
Feb 8, 2023
Scanned annex to a communication - opposition procedure
Feb 8, 2023
Scanned annex to a communication - opposition procedure
Feb 8, 2023
Transmittal of decision / summons - opposition
Feb 8, 2023
Transmittal of decision / summons - opposition
Dec 19, 2022
Brief communication - Opposition proceedings
Dec 15, 2022
Information about the result of oral proceedings
Dec 14, 2022
(Electronic) Receipt
Dec 14, 2022
Description
Dec 14, 2022
Letter accompanying subsequently filed items
Dec 14, 2022
Written submission in preparation to/during oral proceedings
Nov 30, 2022
Notification concerning the date of oral proceedings
Nov 30, 2022
Notification concerning the date of oral proceedings
Nov 24, 2022
Information about the result of oral proceedings
Nov 22, 2022
Brief communication - Opposition proceedings
Nov 21, 2022
(Electronic) Receipt
Nov 21, 2022
Letter accompanying subsequently filed items
Nov 21, 2022
Written submission in preparation to/during oral proceedings
Nov 15, 2022
Brief communication - Opposition proceedings
Nov 14, 2022
Brief communication - Opposition proceedings
Nov 10, 2022
(Electronic) Receipt
Nov 10, 2022
Letter accompanying subsequently filed items
Nov 10, 2022
Written submission in preparation to/during oral proceedings
Nov 8, 2022
(Electronic) Receipt
Nov 8, 2022
Letter accompanying subsequently filed items
Nov 8, 2022
Written submission in preparation to/during oral proceedings
Sep 29, 2022
Brief communication - Opposition proceedings
Sep 23, 2022
(Electronic) Receipt
Sep 23, 2022
Letter accompanying subsequently filed items
Sep 23, 2022
Written submission in preparation to/during oral proceedings
May 16, 2022
Brief communication - Opposition proceedings
May 11, 2022
(Electronic) Receipt
May 11, 2022
Auxiliary request during Opposition procedure
May 11, 2022
Auxiliary request during Opposition procedure - 01
May 11, 2022
Letter accompanying subsequently filed items
May 11, 2022
Written submission in preparation to/during oral proceedings
May 10, 2022
Brief communication - Opposition proceedings
May 4, 2022
(Electronic) Receipt
May 4, 2022
(Electronic) Receipt
May 4, 2022
Advice of delivery
May 4, 2022
Letter accompanying subsequently filed items
May 4, 2022
Letter accompanying subsequently filed items
May 4, 2022
Request for interpreters during oral proceedings
May 4, 2022
Written submission in preparation to/during oral proceedings
Apr 27, 2022
Advice of delivery
Apr 25, 2022
Information concerning oral proceedings
Apr 25, 2022
Summons to attend oral proceedings
Apr 25, 2022
Summons to attend oral proceedings
Apr 25, 2022
Transmittal of decision / summons - opposition
Apr 25, 2022
Transmittal of decision / summons - opposition
Apr 22, 2022
Notification concerning the date of oral proceedings
Apr 22, 2022
Notification concerning the date of oral proceedings
Apr 21, 2022
Brief communication - Opposition proceedings
Apr 19, 2022
Notification concerning the date of oral proceedings
Apr 19, 2022
Notification concerning the date of oral proceedings
Apr 13, 2022
(Electronic) Receipt
Apr 13, 2022
(Electronic) Receipt
Apr 13, 2022
Letter accompanying subsequently filed items
Apr 13, 2022
Letter accompanying subsequently filed items
Apr 13, 2022
Oral proceedings: Request for postponement
Apr 8, 2022
Advice of delivery
Apr 6, 2022
Advice of delivery
Apr 4, 2022
Annex to the communication - opposition
Apr 4, 2022
Information concerning oral proceedings
Apr 4, 2022
Summons to attend oral proceedings
Apr 4, 2022
Summons to attend oral proceedings
Apr 4, 2022
Transmittal of decision / summons - opposition
Apr 4, 2022
Transmittal of decision / summons - opposition
Oct 11, 2021
Brief communication - Opposition proceedings
Oct 5, 2021
(Electronic) Receipt
Oct 5, 2021
Letter accompanying subsequently filed items
Oct 5, 2021
Reply of the patent proprietor to the notice(s) of opposition
Jun 8, 2021
Communication of a notice of opposition and request to file observations
Jun 8, 2021
Notice of further oppositions to opponent(s)
May 20, 2021
Communication of a notice of opposition - first information to patent proprietor
May 12, 2021
(Electronic) Receipt
May 12, 2021
Citation in opposition procedure - 001
May 12, 2021
Citation in opposition procedure - 002
May 12, 2021
Citation in opposition procedure - 003
May 12, 2021
Citation in opposition procedure - 004
May 12, 2021
Citation in opposition procedure - 005
May 12, 2021
Citation in opposition procedure - 006
May 12, 2021
Citation in opposition procedure - 007
May 12, 2021
Citation in opposition procedure - 008
May 12, 2021
Citation in opposition procedure - 009
May 12, 2021
Citation in opposition procedure - 010
May 12, 2021
Citation in opposition procedure - 011
May 12, 2021
Citation in opposition procedure - 012
May 12, 2021
Consolidated list of cited opposition documents
May 12, 2021
Letter accompanying subsequently filed items
May 12, 2021
Notice of opposition
Sep 7, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 30, 2020
Decision to grant a European patent
Jun 30, 2020
Communication regarding the forthcoming grant
Jun 30, 2020
Communication regarding the forthcoming grant
Jun 24, 2020
(Electronic) Receipt
Jun 24, 2020
Filing of the translations of the claims
Jun 24, 2020
French translation of claims
Jun 24, 2020
German translation of the claims
Jun 24, 2020
Letter accompanying subsequently filed items
Mar 2, 2020
Bibliographic data of the European patent application
Mar 2, 2020
Communication about intention to grant a European patent
Mar 2, 2020
Intention to grant (signatures)
Mar 2, 2020
Text intended for grant (clean copy)
Mar 2, 2020
Text intended for grant (version for approval)
Feb 5, 2020
Grant of extension of time limit (examination procedure)
Jan 29, 2020
(Electronic) Receipt
Jan 29, 2020
Amended description with annotations
Jan 29, 2020
Claims
Jan 29, 2020
Description
Jan 29, 2020
Letter accompanying subsequently filed items
Jan 29, 2020
Reply to communication from the Examining Division
Jan 24, 2020
(Electronic) Receipt
Jan 24, 2020
Letter accompanying subsequently filed items
Jan 24, 2020
Request for extension of time limit to communication from the Examining Division
Nov 15, 2019
Annex to the communication
Nov 15, 2019
Consultation by telephone/in person (with time limit)
Nov 15, 2019
Result of consultation by telephone/in person
Aug 16, 2018
Communication of amended entries concerning the representative
Aug 6, 2018
Submission concerning change of applicant's representative
Mar 15, 2018
Communication of the registration of a transfer or change of name and/or address
Mar 14, 2018
Submission concerning change of applicant's name
Mar 8, 2018
Submission concerning change of applicant's name
Dec 4, 2017
(Electronic) Receipt
Dec 4, 2017
Amended claims with annotations
Dec 4, 2017
Annex
Dec 4, 2017
Claims
Dec 4, 2017
Letter accompanying subsequently filed items
Dec 4, 2017
Reply to communication from the Examining Division
Oct 9, 2017
Grant of extension of time limit (examination procedure)
Oct 2, 2017
Request for extension of time limit to communication from the Examining Division
May 26, 2017
Annex to the communication
May 26, 2017
Communication from the Examining Division
May 17, 2017
Examination started
Aug 17, 2016
Statement of non-availability of priority search results
Jun 29, 2016
Invitation to file a copy of search results(priority)
Feb 12, 2016
Communication of amended entries concerning the representative
Jan 14, 2016
Submission concerning change of applicant's representative
Dec 28, 2015
Reply to Written Opinion prepared by the EPO
Dec 21, 2015
Reminder period for payment of examination fee/designation fee and correction of deficiencies in Written Opinion/amendment
Nov 18, 2015
Notification of forthcoming publication
Nov 18, 2015
Refund of fees
Oct 22, 2015
Communication regarding the transmission of the European search report
Oct 22, 2015
European search opinion
Oct 22, 2015
European search report
Oct 13, 2015
Search started
Aug 21, 2015
Communication to designated inventor
May 27, 2015
Abstract
May 27, 2015
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
May 27, 2015
Claims
May 27, 2015
Description
May 27, 2015
Designation of inventor
May 27, 2015
Drawings
May 27, 2015
Request for grant of a European patent
Apr 25, 2012
Priority document (electronically transmitted)

EP2954844

SCHLEIFRING

Application Number: EP15169494A
Filing Date: Jul 21, 2011
Status: Granted And Under Opposition; Jul 24, 2020
Publication Date: Aug 26, 2020
External Links: Slate, Register , Google Patents

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Contactless Rotary Joint

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Dossier Documents

EP2954844