Impedance-Matched Microwave Quantum Circuit Systems

Patent No. EP3217336 (titled "Impedance-Matched Microwave Quantum Circuit Systems") was filed by Rigetti on Jan 31, 2017. The application was issued on Oct 1, 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
UEBERFLUSS	Jun 1, 2021	SCHORR

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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Sep 4, 2025
Decision to maintain the European patent in amended form
Sep 4, 2025
Decision to maintain the European patent in amended form
Sep 2, 2025
Communication of the registration of a transfer or change of name and/or address
Aug 27, 2025
(Electronic) Receipt
Aug 27, 2025
French translation of claims
Aug 27, 2025
German translation of the claims
Aug 27, 2025
Submission concerning change of proprietor's address
Jun 10, 2025
Communication to opponent concerning maintenance
Jun 10, 2025
Communication with request to file translations
Jun 3, 2025
Maintenance of the patent with the documents specified in the final decision
May 28, 2025
Decision of the Board of Appeal
May 28, 2025
F3032 Notification(s) of the decision
May 28, 2025
F3032 Notification(s) of the decision
Mar 24, 2025
F3013 Oral Proceedings: Forwarding minutes
Mar 24, 2025
F3013 Oral Proceedings: Forwarding minutes
Mar 24, 2025
F3316 Oral Proceedings: Minutes (Appellant: Opponent)
Mar 17, 2025
F3345 Forwarding of submissions to parties
Mar 14, 2025
(Electronic) Receipt
Mar 14, 2025
Letter accompanying subsequently filed items
Mar 14, 2025
Letter dealing with oral proceedings during the appeal procedure
Mar 12, 2025
F3345 Forwarding of submissions to parties
Mar 11, 2025
(Electronic) Receipt
Mar 11, 2025
Letter accompanying subsequently filed items
Mar 11, 2025
Letter dealing with oral proceedings during the appeal procedure
Feb 27, 2025
F3345 Forwarding of submissions to parties
Feb 26, 2025
(Electronic) Receipt
Feb 26, 2025
Letter accompanying subsequently filed items
Feb 26, 2025
Letter dealing with oral proceedings during the appeal procedure
Jan 31, 2025
F3345 Forwarding of submissions to parties
Jan 29, 2025
(Electronic) Receipt
Jan 29, 2025
Amended claims with annotations
Jan 29, 2025
Amended claims with annotations
Jan 29, 2025
Auxiliary request during appeals procedure - 07
Jan 29, 2025
Auxiliary request during appeals procedure - 08
Jan 29, 2025
Citation in appeal procedure - 013
Jan 29, 2025
Citation in appeal procedure - 014
Jan 29, 2025
Citation in appeal procedure - 015
Jan 29, 2025
Citation in appeal procedure - 016
Jan 29, 2025
Citation in appeal procedure - 017
Jan 29, 2025
Citation in appeal procedure - 018
Jan 29, 2025
Citation in appeal procedure - 019
Jan 29, 2025
Citation in appeal procedure - 020
Jan 29, 2025
Letter accompanying subsequently filed items
Jan 29, 2025
Letter dealing with oral proceedings during the appeal procedure
Dec 3, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Dec 3, 2024
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
May 22, 2024
F3345 Forwarding of submissions to parties
May 21, 2024
(Electronic) Receipt
May 21, 2024
Letter accompanying subsequently filed items
May 21, 2024
Request for interpreters during oral proceedings
May 6, 2024
F3011.1 Oral Proceedings: summons
May 6, 2024
F3011.1 Oral Proceedings: summons
Apr 30, 2024
F3010 Oral proceedings: order for summons
Nov 27, 2023
F3303.16 Change of composition of the Board (T)
Jul 25, 2023
Composition of the board (T)
Jul 13, 2023
F3345 Forwarding of submissions to parties
Jul 7, 2023
(Electronic) Receipt
Jul 7, 2023
Amended claims with annotations
Jul 7, 2023
Amended claims with annotations
Jul 7, 2023
Amended claims with annotations
Jul 7, 2023
Amended claims with annotations
Jul 7, 2023
Amended claims with annotations
Jul 7, 2023
Amended claims with annotations
Jul 7, 2023
Auxiliary request during appeals procedure - 01
Jul 7, 2023
Auxiliary request during appeals procedure - 02
Jul 7, 2023
Auxiliary request during appeals procedure - 03
Jul 7, 2023
Auxiliary request during appeals procedure - 04
Jul 7, 2023
Auxiliary request during appeals procedure - 05
Jul 7, 2023
Auxiliary request during appeals procedure - 06
Jul 7, 2023
Letter accompanying subsequently filed items
Jul 7, 2023
Main request during appeals procedure
Jul 7, 2023
Reply to appeal
Feb 28, 2023
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Feb 23, 2023
Non-Patent Literature cited during the appeal procedure
Feb 23, 2023
Non-Patent Literature cited during the appeal procedure
Feb 23, 2023
Non-Patent Literature cited during the appeal procedure
Feb 23, 2023
Non-Patent Literature cited during the appeal procedure
Feb 23, 2023
Patent Document cited during the appeal procedure
Feb 23, 2023
Statement of grounds of appeal
Dec 23, 2022
F3204 Communication of the file number to the parties
Dec 23, 2022
F3204 Communication of the file number to the parties
Dec 21, 2022
(Electronic) Receipt
Dec 21, 2022
Letter accompanying subsequently filed items
Dec 21, 2022
Notice of appeal
Oct 14, 2022
(Electronic) Receipt
Oct 14, 2022
Advice of delivery
Oct 14, 2022
Advice of delivery
Oct 14, 2022
Letter accompanying subsequently filed items
Oct 13, 2022
Annex to the communication - opposition
Oct 13, 2022
Decision of the Opposition Division and instruction
Oct 13, 2022
Druckexemplar in opposition procedure
Oct 13, 2022
Grounds for the decision (Annex) - opposition
Oct 13, 2022
Interlocutory decision in opposition proceedings
Oct 13, 2022
Interlocutory decision in opposition proceedings
Oct 13, 2022
Means of redress
Oct 13, 2022
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Oct 13, 2022
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Oct 13, 2022
Provision of a copy of the minutes - opposition procedure
Oct 13, 2022
Provision of a copy of the minutes - opposition procedure
Oct 13, 2022
Scanned annex to a communication - opposition procedure
Oct 13, 2022
Scanned annex to a communication - opposition procedure
Oct 13, 2022
Transmittal of decision / summons - opposition
Oct 13, 2022
Transmittal of decision / summons - opposition
Jun 9, 2022
Information about the result of oral proceedings
May 17, 2022
Brief communication - Opposition proceedings
May 9, 2022
(Electronic) Receipt
May 9, 2022
Letter accompanying subsequently filed items
May 9, 2022
Request for interpreters during oral proceedings
Apr 20, 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 14, 2022
Brief communication - Opposition proceedings
Apr 11, 2022
(Electronic) Receipt
Apr 11, 2022
Letter accompanying subsequently filed items
Apr 8, 2022
(Electronic) Receipt
Apr 8, 2022
Letter accompanying subsequently filed items
Apr 8, 2022
Written submission in preparation to/during oral proceedings
Apr 7, 2022
(Electronic) Receipt
Apr 7, 2022
Auxiliary request during Opposition procedure
Apr 7, 2022
Auxiliary request during Opposition procedure
Apr 7, 2022
Auxiliary request during Opposition procedure
Apr 7, 2022
Auxiliary request during Opposition procedure
Apr 7, 2022
Auxiliary request during Opposition procedure
Apr 7, 2022
Auxiliary request during Opposition procedure
Apr 7, 2022
Auxiliary request during Opposition procedure - 01
Apr 7, 2022
Auxiliary request during Opposition procedure - 02
Apr 7, 2022
Auxiliary request during Opposition procedure - 03
Apr 7, 2022
Auxiliary request during Opposition procedure - 04
Apr 7, 2022
Auxiliary request during Opposition procedure - 05
Apr 7, 2022
Auxiliary request during Opposition procedure - 06
Apr 7, 2022
Letter accompanying subsequently filed items
Apr 7, 2022
Main request during Opposition procedure
Apr 7, 2022
Written submission in preparation to/during oral proceedings
Mar 10, 2022
Communication concerning corrected entries of the applicant
Feb 18, 2022
Annexes in respect of a client data request
Feb 18, 2022
Letter accompanying subsequently filed items
Feb 18, 2022
Request for correction of client data
Feb 17, 2022
Communication of the registration of a transfer or change of name and/or address
Feb 11, 2022
Annexes in respect of a client data request
Feb 11, 2022
Annexes in respect of a client data request
Feb 11, 2022
Letter accompanying subsequently filed items
Feb 11, 2022
Submission concerning change of applicant's name
Dec 7, 2021
Advice of delivery
Dec 3, 2021
Advice of delivery
Dec 3, 2021
Annex to the communication - opposition
Dec 3, 2021
Information concerning oral proceedings
Dec 3, 2021
Summons to attend oral proceedings
Dec 3, 2021
Summons to attend oral proceedings
Dec 3, 2021
Transmittal of decision / summons - opposition
Dec 3, 2021
Transmittal of decision / summons - opposition
Oct 22, 2021
Brief communication - Opposition proceedings
Oct 21, 2021
Brief communication - Opposition proceedings
Oct 20, 2021
Communication of amended entries
Oct 19, 2021
Communication concerning the filing of a power of attorney
Oct 14, 2021
(Electronic) Receipt
Oct 14, 2021
Auxiliary request during Opposition procedure
Oct 14, 2021
Auxiliary request during Opposition procedure
Oct 14, 2021
Auxiliary request during Opposition procedure
Oct 14, 2021
Auxiliary request during Opposition procedure - 01
Oct 14, 2021
Auxiliary request during Opposition procedure - 02
Oct 14, 2021
Auxiliary request during Opposition procedure - 03
Oct 14, 2021
Letter accompanying subsequently filed items
Oct 14, 2021
Main request during Opposition procedure
Oct 14, 2021
Reply of the patent proprietor to the notice(s) of opposition
Oct 12, 2021
Authorisation
Oct 12, 2021
Request for change of opponent's representative
Oct 8, 2021
Brief communication - Opposition proceedings
Oct 8, 2021
Communication of amended entries
Oct 5, 2021
(Electronic) Receipt
Oct 5, 2021
Letter accompanying subsequently filed items
Oct 5, 2021
Request for change of opponent's representative
Jun 17, 2021
Communication of a notice of opposition and request to file observations
Jun 17, 2021
Notice of further oppositions to opponent(s)
Jun 14, 2021
Communication of a notice of opposition - first information to patent proprietor
Jun 1, 2021
(Electronic) Receipt
Jun 1, 2021
Citation in opposition procedure - 001
Jun 1, 2021
Citation in opposition procedure - 002
Jun 1, 2021
Citation in opposition procedure - 003
Jun 1, 2021
Citation in opposition procedure - 004
Jun 1, 2021
Citation in opposition procedure - 005
Jun 1, 2021
Citation in opposition procedure - 006
Jun 1, 2021
Citation in opposition procedure - 007
Jun 1, 2021
Citation in opposition procedure - 008
Jun 1, 2021
Citation in opposition procedure - 009
Jun 1, 2021
Citation in opposition procedure - 010
Jun 1, 2021
Citation in opposition procedure - 011
Jun 1, 2021
Citation in opposition procedure - 012
Jun 1, 2021
Consolidated list of cited opposition documents
Jun 1, 2021
Notice of opposition
Jun 1, 2021
Notice of opposition
Sep 14, 2020
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 6, 2020
Decision to grant a European patent
Jul 22, 2020
(Electronic) Receipt
Jul 22, 2020
Filing of the translations of the claims
Jul 22, 2020
French translation of claims
Jul 22, 2020
German translation of the claims
Jul 22, 2020
Letter accompanying subsequently filed items
May 8, 2020
Acknowledgement of receipt of third party observations
May 8, 2020
Transmittal of third party observations to applicant
May 6, 2020
Information about non-relevance of third-party observations
Apr 24, 2020
Non-patent literature cited during the examination procedure
Apr 24, 2020
Non-scannable object
Apr 24, 2020
Non-scannable object
Apr 24, 2020
Observations by third parties
Mar 25, 2020
Bibliographic data of the European patent application
Mar 25, 2020
Communication about intention to grant a European patent
Mar 25, 2020
Intention to grant (signatures)
Mar 25, 2020
Text intended for grant (clean copy)
Mar 25, 2020
Text intended for grant (version for approval)
Feb 19, 2020
Annex to the communication
Feb 19, 2020
Consultation by telephone/in person
Feb 19, 2020
Result of consultation by telephone/in person
Feb 18, 2020
Notification concerning the date of oral proceedings
Feb 17, 2020
Notification concerning the date of oral proceedings
Feb 10, 2020
Annex to the communication
Feb 10, 2020
Summons to attend oral proceedings
Feb 6, 2020
(Electronic) Receipt
Feb 6, 2020
Amended claims with annotations
Feb 6, 2020
Amended claims with annotations
Feb 6, 2020
Claims
Feb 6, 2020
Claims
Feb 6, 2020
Letter accompanying subsequently filed items
Feb 6, 2020
Written submission in preparation to/during oral proceedings
Jan 30, 2020
(Electronic) Receipt
Jan 30, 2020
Letter accompanying subsequently filed items
Jan 30, 2020
Oral proceedings: reply to date proposed
Jan 24, 2020
Communication of amended entries concerning the representative
Jan 17, 2020
Annexes in respect of a client data request
Jan 17, 2020
Letter accompanying subsequently filed items
Jan 17, 2020
Submission concerning change of applicant's representative
Jan 10, 2020
Annexes in respect of a client data request
Jan 10, 2020
Annexes in respect of a client data request
Jan 10, 2020
Submission concerning change of applicant's representative
Oct 25, 2019
Advice of delivery
Oct 23, 2019
Advice of delivery
Oct 18, 2019
Acknowledgement of a document
Oct 18, 2019
Annex to the communication
Oct 18, 2019
Summons to attend oral proceedings
Oct 11, 2019
Summons to attend oral proceedings
Aug 20, 2019
(Electronic) Receipt
Aug 20, 2019
Filing of the translations of the claims
Aug 20, 2019
French translation of claims
Aug 20, 2019
German translation of the claims
Jun 21, 2019
Acknowledgement of receipt of third party observations
Jun 21, 2019
Transmittal of third party observations to applicant
Apr 30, 2019
Non-patent literature filed by a third party
Apr 30, 2019
Non-patent literature filed by a third party
Apr 30, 2019
Non-patent literature filed by a third party
Apr 30, 2019
Non-patent literature filed by a third party
Apr 30, 2019
Non-patent literature filed by a third party
Apr 30, 2019
Non-scannable object
Apr 30, 2019
Observations by third parties
Apr 30, 2019
Patent document filed by a Third party
Apr 30, 2019
Patent document filed by a Third party
Apr 17, 2019
Bibliographic data of the European patent application
Apr 17, 2019
Communication about intention to grant a European patent
Apr 17, 2019
Intention to grant (signatures)
Apr 17, 2019
Text intended for grant (clean copy)
Apr 17, 2019
Text intended for grant (version for approval)
Apr 8, 2019
Communication of the registration of a transfer or change of name and/or address
Apr 5, 2019
Change to the inventor details
Mar 28, 2019
(Electronic) Receipt
Mar 28, 2019
Letter concerning the inventor
Dec 21, 2018
(Electronic) Receipt
Dec 21, 2018
Amended claims with annotations
Dec 21, 2018
Claims
Dec 21, 2018
Letter accompanying subsequently filed items
Dec 21, 2018
Reply to communication from the Examining Division
Aug 16, 2018
Annex to the communication
Aug 16, 2018
Communication from the Examining Division
Aug 2, 2018
Examination started
Mar 13, 2018
(Electronic) Receipt
Mar 13, 2018
Amended claims filed after receipt of (European) search report
Mar 13, 2018
Amended claims with annotations
Mar 13, 2018
Amended description filed after receipt of (European) search report
Mar 13, 2018
Amended description with annotations
Mar 13, 2018
Amendments received before examination
Mar 13, 2018
Letter accompanying subsequently filed items
Oct 4, 2017
Letter accompanying subsequently filed items
Oct 4, 2017
Letter concerning the priority
Oct 4, 2017
Non-scannable object
Oct 4, 2017
US-Priority document (transmitted on CD)
Sep 18, 2017
Invitation to confirm maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Aug 25, 2017
Invitation to file priority document
Aug 17, 2017
Notification of forthcoming publication
Aug 3, 2017
Communication regarding the transmission of the European search report
Aug 3, 2017
European search opinion
Aug 3, 2017
European search report
Aug 3, 2017
Information on Search Strategy
Jul 24, 2017
Search started
Jul 5, 2017
Brief communication to applicant/representative
Jun 27, 2017
(Electronic) Receipt
Jun 27, 2017
Letter concerning the priority
Apr 6, 2017
Confirmation of receipt of (electronically) transmitted priority document
Mar 31, 2017
Priority document (electronically transmitted)
Mar 24, 2017
Communication to designated inventor
Mar 24, 2017
Communication to designated inventor
Mar 24, 2017
Communication to designated inventor
Mar 24, 2017
Communication to designated inventor
Jan 31, 2017
Abstract
Jan 31, 2017
Acknowledgement of receipt of electronic submission of the request for grant of a European patent
Jan 31, 2017
Claims
Jan 31, 2017
Description
Jan 31, 2017
Designation of inventor
Jan 31, 2017
Drawings
Jan 31, 2017
Request for grant of a European patent

EP3217336

RIGETTI

Application Number: EP17153888A
Filing Date: Jan 31, 2017
Status: Patent Maintained As Amended; Aug 29, 2025
Publication Date: Oct 1, 2025
External Links: Slate, Register , Google Patents

IP Verse

Impedance-Matched Microwave Quantum Circuit Systems

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP3217336