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Low Pressure Ratio Fan Engine Having A Dimensional Relationship Between Inlet And Fan Size

Patent No. EP2935788 (titled "Low Pressure Ratio Fan Engine Having A Dimensional Relationship Between Inlet And Fan Size") was filed by Raytheon on Dec 18, 2013. The application was issued on Sep 15, 2021.

Patent Summary

Patent Family

Patent Oppositions

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
ROLLS ROYCE	Jun 14, 2022	HASELTINE LAKE KEMPNER

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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Feb 25, 2025
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Feb 25, 2025
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Nov 20, 2024
Decision revoking the European patent
Nov 20, 2024
Decision revoking the European patent
Nov 20, 2024
Notification concerning the date of oral proceedings
Nov 20, 2024
Notification concerning the date of oral proceedings
Nov 18, 2024
Brief communication - Opposition proceedings
Nov 14, 2024
(Electronic) Receipt
Nov 14, 2024
Request for revocation of patent
Nov 7, 2024
Brief communication - Opposition proceedings
Oct 25, 2024
(Electronic) Receipt
Oct 25, 2024
Letter accompanying subsequently filed items
Oct 8, 2024
Annex to the communication - opposition
Oct 8, 2024
Brief communication - Opposition proceedings
Oct 8, 2024
Brief communication - Opposition proceedings
Oct 8, 2024
Scanned annex to a communication - opposition procedure
Oct 8, 2024
Summons to attend oral proceedings
Oct 8, 2024
Summons to attend oral proceedings
Sep 24, 2024
Brief communication - Opposition proceedings
Sep 6, 2024
Notification concerning the date of oral proceedings
Sep 6, 2024
Notification concerning the date of oral proceedings
Sep 3, 2024
(Electronic) Receipt
Sep 3, 2024
Letter accompanying subsequently filed items
Jul 31, 2024
Brief communication - Opposition proceedings
Jul 23, 2024
(Electronic) Receipt
Jul 23, 2024
Letter accompanying subsequently filed items
Jul 23, 2024
Written submission in preparation to/during oral proceedings
Jul 15, 2024
Brief communication - Opposition proceedings
Jul 9, 2024
Brief communication - Opposition proceedings
Jul 5, 2024
(Electronic) Receipt
Jul 5, 2024
Letter accompanying subsequently filed items
Jul 5, 2024
Written submission in preparation to/during oral proceedings
Jun 28, 2024
(Electronic) Receipt
Jun 28, 2024
Letter accompanying subsequently filed items
Jun 28, 2024
Request for change of opponent's representative
Jun 19, 2024
Brief communication - Opposition proceedings
Jun 12, 2024
(Electronic) Receipt
Jun 12, 2024
Authorisation
Jun 12, 2024
Citation in opposition procedure - 008
Jun 12, 2024
Citation in opposition procedure - 009
Jun 12, 2024
Citation in opposition procedure - 010
Jun 12, 2024
Consolidated list of cited opposition documents
Jun 12, 2024
Letter accompanying subsequently filed items
Jun 12, 2024
Written submission in preparation to/during oral proceedings
Feb 12, 2024
Annex to the communication - opposition
Feb 12, 2024
Brief communication - Opposition proceedings
Feb 12, 2024
Brief communication - Opposition proceedings
Feb 12, 2024
Brief communication - Opposition proceedings
Feb 12, 2024
Summons to attend oral proceedings
Feb 12, 2024
Summons to attend oral proceedings
Oct 4, 2023
Communication of the registration of a transfer or change of name and/or address
Sep 27, 2023
Annexes in respect of a client data request
Sep 27, 2023
Letter accompanying subsequently filed items
Sep 27, 2023
Submission concerning change of applicant's name
Nov 18, 2022
Brief communication - Opposition proceedings
Nov 10, 2022
(Electronic) Receipt
Nov 10, 2022
Auxiliary request during Opposition procedure
Nov 10, 2022
Auxiliary request during Opposition procedure
Nov 10, 2022
Auxiliary request during Opposition procedure
Nov 10, 2022
Auxiliary request during Opposition procedure
Nov 10, 2022
Auxiliary request during Opposition procedure
Nov 10, 2022
Auxiliary request during Opposition procedure
Nov 10, 2022
Auxiliary request during Opposition procedure
Nov 10, 2022
Auxiliary request during Opposition procedure
Nov 10, 2022
Auxiliary request during Opposition procedure
Nov 10, 2022
Auxiliary request during Opposition procedure
Nov 10, 2022
Auxiliary request during Opposition procedure - 01
Nov 10, 2022
Auxiliary request during Opposition procedure - 02
Nov 10, 2022
Auxiliary request during Opposition procedure - 03
Nov 10, 2022
Auxiliary request during Opposition procedure - 04
Nov 10, 2022
Auxiliary request during Opposition procedure - 05
Nov 10, 2022
Auxiliary request during Opposition procedure - 06
Nov 10, 2022
Auxiliary request during Opposition procedure - 07
Nov 10, 2022
Auxiliary request during Opposition procedure - 08
Nov 10, 2022
Auxiliary request during Opposition procedure - 09
Nov 10, 2022
Auxiliary request during Opposition procedure - 10
Nov 10, 2022
Letter accompanying subsequently filed items
Nov 10, 2022
Main request during Opposition procedure
Nov 10, 2022
Main request during Opposition procedure
Nov 10, 2022
Reply of the patent proprietor to the notice(s) of opposition
Jun 30, 2022
Communication of a notice of opposition and request to file observations
Jun 30, 2022
Notice of further oppositions to opponent(s)
Jun 23, 2022
Communication of a notice of opposition - first information to patent proprietor
Jun 14, 2022
(Electronic) Receipt
Jun 14, 2022
Citation in opposition procedure - 001
Jun 14, 2022
Citation in opposition procedure - 002
Jun 14, 2022
Citation in opposition procedure - 003
Jun 14, 2022
Citation in opposition procedure - 004
Jun 14, 2022
Citation in opposition procedure - 005
Jun 14, 2022
Citation in opposition procedure - 006
Jun 14, 2022
Citation in opposition procedure - 007
Jun 14, 2022
Notice of opposition
Jun 14, 2022
Notice of opposition
Sep 28, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 19, 2021
Decision to grant a European patent
Aug 5, 2021
(Electronic) Receipt
Aug 5, 2021
Filing of the translations of the claims
Aug 5, 2021
French translation of claims
Aug 5, 2021
German translation of the claims
Aug 5, 2021
Letter accompanying subsequently filed items
Mar 30, 2021
Bibliographic data of the European patent application
Mar 30, 2021
Communication about intention to grant a European patent
Mar 30, 2021
Intention to grant (signatures)
Mar 30, 2021
Text intended for grant (clean copy)
Mar 30, 2021
Text intended for grant (version for approval)
Feb 19, 2021
Communication of the registration of a transfer or change of name and/or address
Feb 8, 2021
Authorisation
Feb 8, 2021
Submission concerning change of applicant's name
Jan 18, 2021
Indication of deficiencies in a request for entry of a change in personal particulars and invitation to correct them
Dec 18, 2020
Annexes in respect of a client data request
Dec 18, 2020
Annexes in respect of a client data request
Dec 18, 2020
Submission concerning change of applicant's name
Sep 15, 2020
Decision to allow further processing
Sep 4, 2020
(Electronic) Receipt
Sep 4, 2020
Amended claims with annotations
Sep 4, 2020
Amended description with annotations
Sep 4, 2020
Claims
Sep 4, 2020
Description
Sep 4, 2020
Drawings
Sep 4, 2020
Letter accompanying subsequently filed items
Sep 4, 2020
Reply to communication from the Examining Division
Jun 25, 2020
Application deemed to be withdrawn (no reply to communication from the Examining Division)
Feb 3, 2020
Grant of extension of time limit (examination procedure)
Jan 28, 2020
(Electronic) Receipt
Jan 28, 2020
Request for extension of time limit to communication from the Examining Division
Sep 18, 2019
Annex to the communication
Sep 18, 2019
Communication from the Examining Division
Sep 12, 2019
Acknowledgement of receipt of third party observations
Sep 12, 2019
Transmittal of third party observations to applicant
Sep 5, 2019
(Electronic) Receipt
Sep 5, 2019
Letter accompanying subsequently filed items
Sep 5, 2019
Non-patent literature filed by a third party
Sep 5, 2019
Non-patent literature filed by a third party
Sep 5, 2019
Observations by third parties
Jun 27, 2019
(Electronic) Receipt
Jun 27, 2019
Amended claims with annotations
Jun 27, 2019
Amended description with annotations
Jun 27, 2019
Claims
Jun 27, 2019
Description
Jun 27, 2019
Letter accompanying subsequently filed items
Jun 27, 2019
Reply to communication from the Examining Division
Feb 18, 2019
Annex to the communication
Feb 18, 2019
Communication from the Examining Division
Dec 21, 2018
(Electronic) Receipt
Dec 21, 2018
Amended claims with annotations
Dec 21, 2018
Amended description with annotations
Dec 21, 2018
Claims
Dec 21, 2018
Description
Dec 21, 2018
Letter accompanying subsequently filed items
Dec 21, 2018
Reply to communication from the Examining Division
Aug 17, 2018
Annex to the communication
Aug 17, 2018
Communication from the Examining Division
Aug 8, 2018
Examination started
May 28, 2018
Communication of amended entries concerning the representative
May 17, 2018
Submission concerning change of applicant's representative
Apr 26, 2018
Notification regarding date of start of examination with possibility to withdraw
Sep 21, 2016
Communication of the registration of a transfer or change of name and/or address
Sep 16, 2016
Submission concerning change of applicant's address
Sep 15, 2016
Submission concerning change of applicant's address
Jul 21, 2016
(Electronic) Receipt
Jul 21, 2016
Amended claims filed after receipt of (European) search report
Jul 21, 2016
Amended claims with annotations
Jul 21, 2016
Amended description filed after receipt of (European) search report
Jul 21, 2016
Amended description with annotations
Jul 21, 2016
Amendments received before examination
Jul 21, 2016
Letter accompanying subsequently filed items
Jan 14, 2016
Letter concerning the priority
Jan 14, 2016
Priority document
Jan 11, 2016
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Dec 23, 2015
Communication regarding the transmission of the European search report
Dec 23, 2015
European search opinion
Dec 23, 2015
Information on Search Strategy
Dec 23, 2015
Supplementary European search report
Dec 14, 2015
Search started
Dec 8, 2015
Priority document (electronically transmitted)
Nov 26, 2015
Invitation to file priority document
Sep 30, 2015
Notification on forthcoming publication of bibliographic data
Aug 10, 2015
Communication to designated inventor
Aug 10, 2015
Communication to designated inventor
Aug 10, 2015
Communication to designated inventor
Aug 10, 2015
Communication to designated inventor
Aug 10, 2015
Communication to designated inventor
Jul 20, 2015
(Electronic) Receipt
Jul 20, 2015
Amended claims filed after receipt of (European) search report
Jul 20, 2015
Amended claims with annotations
Jul 20, 2015
Amendments received before examination
Jul 20, 2015
Request for entry into the European phase
Jul 7, 2015
Copy of the international preliminary report on patentability
May 4, 2015
Information on entry into European phase
Dec 19, 2014
Notification of the recording of a change
Jun 26, 2014
Copy of the international search report
Jun 26, 2014
Published international application - A1

EP2935788

RAYTHEON

Application Number: EP13864565A
Filing Date: Dec 18, 2013
Status: Revoked; Feb 21, 2025
Publication Date: Sep 15, 2021
External Links: Slate, Register , Google Patents