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Extract from the Register of European Patents

EP About this file: EP2809881

EP2809881 - LOW NOISE COMPRESSOR ROTOR FOR GEARED TURBOFAN ENGINE [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  26.01.2024
Database last updated on 13.07.2024
FormerThe patent has been granted
Status updated on  08.12.2017
FormerGrant of patent is intended
Status updated on  21.09.2017
FormerExamination is in progress
Status updated on  28.12.2016
Most recent event   Tooltip26.01.2024Revocation of patentpublished on 28.02.2024  [2024/09]
Applicant(s)For all designated states
RTX Corporation
10 Farm Springs Road
Farmington, CT 06032 / US
For all designated states
MTU Aero Engines AG
Dachauer Strasse 665
80995 München / DE
[2023/44]
Former [2021/12]For all designated states
Raytheon Technologies Corporation
10 Farm Springs Road
Farmington, CT 06032 / US
For all designated states
MTU Aero Engines AG
Dachauer Strasse 665
80995 München / DE
Former [2016/43]For all designated states
United Technologies Corporation
10 Farm Springs Road
Farmington, CT 06032 / US
For all designated states
MTU Aero Engines AG
Dachauer Strasse 665
80995 München / DE
Former [2014/50]For all designated states
United Technologies Corporation
One Financial Plaza
Hartford, CT 06101 / US
For all designated states
MTU Aero Engines AG
Dachauer Strasse 665
80995 München / DE
Inventor(s)01 / TOPOL, David A.
36 Lyman Road
West Hartford, Connecticut 06117 / US
02 / MORIN, Bruce L.
20 Biella St.
Springfield, Massachusetts 01104 / US
03 / KORTE, Detlef
Waldeckstrasse 4
81543 Munich / DE
 [2014/50]
Representative(s)Dehns
St. Bride's House
10 Salisbury Square
London EC4Y 8JD / GB
[N/P]
Former [2014/50]Hull, James Edward
Dehns
St. Bride's House
10 Salisbury Square
London
EC4Y 8JD / GB
Application number, filing date13749721.018.01.2013
[2018/02]
WO2013US22035
Priority number, dateUS201261592643P31.01.2012         Original published format: US 201261592643 P
[2014/50]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO2013122713
Date:22.08.2013
Language:EN
[2013/34]
Type: A2 Application without search report 
No.:EP2809881
Date:10.12.2014
Language:EN
The application published by WIPO in one of the EPO official languages on 22.08.2013 takes the place of the publication of the European patent application.
[2014/50]
Type: B1 Patent specification 
No.:EP2809881
Date:10.01.2018
Language:EN
[2018/02]
Search report(s)International search report - published on:US30.05.2014
(Supplementary) European search report - dispatched on:EP22.07.2015
ClassificationIPC:F01D1/02, F02C7/262, F02K3/02
[2014/50]
CPC:
F02C3/107 (EP,US); F02C3/04 (CN); F01D5/02 (US);
F02C7/06 (EP,US); F02C7/20 (EP,US); F02K3/06 (EP,RU,US);
F04D29/056 (EP,US); F04D29/26 (CN); F05D2260/4031 (CN);
F05D2260/961 (EP,US); F05D2270/333 (EP,US); Y02T50/60 (EP,US) (-)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2014/50]
Extension statesBANot yet paid
MENot yet paid
TitleGerman:RAUSCHARMER VERDICHTERROTOR FÜR DEN MOTOR EINES TURBOLÜFTERS MIT EINEM GETRIEBE[2014/50]
English:LOW NOISE COMPRESSOR ROTOR FOR GEARED TURBOFAN ENGINE[2014/50]
French:ROTOR DE COMPRESSEUR À BRUIT RÉDUIT POUR MOTEUR À DOUBLE FLUX À RÉDUCTEUR[2014/50]
Entry into regional phase17.06.2014National basic fee paid 
17.06.2014Search fee paid 
17.06.2014Designation fee(s) paid 
17.06.2014Examination fee paid 
Examination procedure17.06.2014Amendment by applicant (claims and/or description)
17.06.2014Examination requested  [2014/50]
09.03.2015Observations by third parties
11.09.2015Despatch of a communication from the examining division (Time limit: M04)
21.01.2016Reply to a communication from the examining division
02.05.2016Despatch of a communication from the examining division (Time limit: M04)
12.09.2016Reply to a communication from the examining division
19.12.2016Despatch of a communication from the examining division (Time limit: M04)
02.05.2017Reply to a communication from the examining division
22.09.2017Communication of intention to grant the patent
24.11.2017Fee for grant paid
24.11.2017Fee for publishing/printing paid
24.11.2017Receipt of the translation of the claim(s)
Divisional application(s)EP18150616.3  / EP3327249
The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  11.09.2015
Opposition(s)Opponent(s)01  08.10.2018  11.10.2018  ADMISSIBLE
Safran Aircraft Engines
2 boulevard du Général Martial Valin
75015 Paris / FR
Opponent's representative
Regimbeau
20, rue de Chazelles
75847 Paris Cedex 17 / FR
 [2018/46]
25.10.2018Invitation to proprietor to file observations on the notice of opposition
04.03.2019Reply of patent proprietor to notice(s) of opposition
09.03.2020Cancellation of oral proceeding that was planned for 19.03.2020
19.03.2020Date of oral proceedings
11.03.2021Date of oral proceedings
11.03.2021Legal effect of revocation of patent [2024/09]
14.05.2021Despatch of minutes of oral proceedings
14.05.2021Despatch of communication that the patent will be revoked
Appeal following opposition23.07.2021Appeal received No.  T1210/21
23.07.2021Payment of appeal fee
24.09.2021Statement of grounds filed
10.01.2024Result of appeal procedure: appeal of the proprietor withdrawn
Fees paidRenewal fee
13.01.2015Renewal fee patent year 03
28.01.2016Renewal fee patent year 04
24.01.2017Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
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Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipHU18.01.2013
AL10.01.2018
CY10.01.2018
CZ10.01.2018
DK10.01.2018
EE10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
MC10.01.2018
MK10.01.2018
NL10.01.2018
PL10.01.2018
PT10.01.2018
RO10.01.2018
RS10.01.2018
SE10.01.2018
SI10.01.2018
SK10.01.2018
SM10.01.2018
TR10.01.2018
IE18.01.2018
LU18.01.2018
MT18.01.2018
BE31.01.2018
CH31.01.2018
LI31.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
[2020/31]
Former [2020/28]HU18.01.2013
AL10.01.2018
CY10.01.2018
CZ10.01.2018
DK10.01.2018
EE10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
MC10.01.2018
NL10.01.2018
PL10.01.2018
PT10.01.2018
RO10.01.2018
RS10.01.2018
SE10.01.2018
SI10.01.2018
SK10.01.2018
SM10.01.2018
TR10.01.2018
IE18.01.2018
LU18.01.2018
MT18.01.2018
BE31.01.2018
CH31.01.2018
LI31.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2020/16]AL10.01.2018
CY10.01.2018
CZ10.01.2018
DK10.01.2018
EE10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
MC10.01.2018
NL10.01.2018
PL10.01.2018
RO10.01.2018
RS10.01.2018
SE10.01.2018
SI10.01.2018
SK10.01.2018
SM10.01.2018
TR10.01.2018
IE18.01.2018
LU18.01.2018
MT18.01.2018
BE31.01.2018
CH31.01.2018
LI31.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2020/08]AL10.01.2018
CY10.01.2018
CZ10.01.2018
DK10.01.2018
EE10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
MC10.01.2018
NL10.01.2018
PL10.01.2018
RO10.01.2018
RS10.01.2018
SE10.01.2018
SI10.01.2018
SK10.01.2018
SM10.01.2018
IE18.01.2018
LU18.01.2018
MT18.01.2018
BE31.01.2018
CH31.01.2018
LI31.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2019/13]AL10.01.2018
CY10.01.2018
CZ10.01.2018
DK10.01.2018
EE10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
MC10.01.2018
NL10.01.2018
PL10.01.2018
RO10.01.2018
RS10.01.2018
SE10.01.2018
SI10.01.2018
SK10.01.2018
SM10.01.2018
IE18.01.2018
LU18.01.2018
BE31.01.2018
CH31.01.2018
LI31.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2019/09]AL10.01.2018
CY10.01.2018
CZ10.01.2018
DK10.01.2018
EE10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
MC10.01.2018
NL10.01.2018
PL10.01.2018
RO10.01.2018
RS10.01.2018
SE10.01.2018
SK10.01.2018
SM10.01.2018
IE18.01.2018
LU18.01.2018
BE31.01.2018
CH31.01.2018
LI31.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2018/52]AL10.01.2018
CY10.01.2018
CZ10.01.2018
DK10.01.2018
EE10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
MC10.01.2018
NL10.01.2018
PL10.01.2018
RO10.01.2018
RS10.01.2018
SE10.01.2018
SK10.01.2018
SM10.01.2018
LU18.01.2018
BE31.01.2018
CH31.01.2018
LI31.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2018/51]AL10.01.2018
CY10.01.2018
CZ10.01.2018
DK10.01.2018
EE10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
MC10.01.2018
NL10.01.2018
PL10.01.2018
RO10.01.2018
RS10.01.2018
SE10.01.2018
SK10.01.2018
LU18.01.2018
BE31.01.2018
CH31.01.2018
LI31.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2018/50]AL10.01.2018
CY10.01.2018
CZ10.01.2018
EE10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
MC10.01.2018
NL10.01.2018
PL10.01.2018
RO10.01.2018
RS10.01.2018
SE10.01.2018
SK10.01.2018
LU18.01.2018
BE31.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2018/49]AL10.01.2018
CY10.01.2018
EE10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
MC10.01.2018
NL10.01.2018
PL10.01.2018
RO10.01.2018
RS10.01.2018
SE10.01.2018
LU18.01.2018
BE31.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2018/47]AL10.01.2018
CY10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
NL10.01.2018
PL10.01.2018
RS10.01.2018
SE10.01.2018
LU18.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2018/46]AL10.01.2018
CY10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
NL10.01.2018
PL10.01.2018
RS10.01.2018
SE10.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2018/40]CY10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
NL10.01.2018
PL10.01.2018
RS10.01.2018
SE10.01.2018
BG10.04.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2018/39]CY10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
LV10.01.2018
NL10.01.2018
PL10.01.2018
RS10.01.2018
SE10.01.2018
NO10.04.2018
GR11.04.2018
IS10.05.2018
Former [2018/37]CY10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
NL10.01.2018
PL10.01.2018
NO10.04.2018
GR11.04.2018
Former [2018/36]CY10.01.2018
ES10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
NL10.01.2018
PL10.01.2018
NO10.04.2018
Former [2018/35]CY10.01.2018
FI10.01.2018
HR10.01.2018
LT10.01.2018
NL10.01.2018
NO10.04.2018
Former [2018/34]FI10.01.2018
LT10.01.2018
NL10.01.2018
NO10.04.2018
Documents cited:Search[XAI]US3194487  (TYLER JOHN M, et al) [X] 10,11,15 * column 2, line 13 - line 32 * * column 4, line 35 - line 63 * * column 17, line 54 - line 67 * [A] 1,2,4,5 [I] 12-14;
 [XI]US3373928  (ERWIN JOHN R, et al) [X] 10,11,15 * column 1, line 65 - line 69 * * column 2, line 20 - line 24 * * column 2, line 53 - line 67 * * column 4, line 49 - line 62; figures 1,2, * [I] 1-9,12-14;
 [X]FR2260701  (SIEMENS AG [DE]) [X] 10,11,15 * column 1, line 44 - line 54 * * column 2, line 41 - line 46 *;
 [X]US2009191047  (SCHLINKER ROBERT HANS [US], et al) [X] 10,11,15 * paragraph [0057]; figure 3 *;
 [I]EP2157305  (UNITED TECHNOLOGIES CORP [US]) [I] 1-15* paragraph [0009] - paragraph [0010]; figure 1A *;
 [X]  - C RIEGLER ET AL, "THE GEARED TURBOFAN TECHNOLOGY - OPPORTUNITIES, CHALLENGES AND READINESS STATUS", PROCEEDINGS CEAS 2007, (20070911), XP055195802 [X] 1-3,8,9 * page 1 * * paragraph [02.1] * * paragraph [3.1.3]; figures 4,22 *
 [XA]  - DENÓS R ET AL, GEARED FAN, AERO-ENGINE DESIGN: FROM STATE-OF-THE-ART TURBOFANS TOWARDS INNOVATIVE ARCHITECTURES - HARDCOVER. LECTURES SERIES 2008-03,, PAGE(S) 1-26, (20080303), XP003035510 [X] 1-3,8,9 * page 16 * * page 60 - page 72; figures 4,22,62 * [A] 6,7
International search[A]US2850226  (LUNDQUIST WILTON G);
 [A]US2957655  (KNAPP GEORGE P, et al);
 [A]WO0019082  (RAMGEN POWER SYSTEMS INC [US], et al);
 [Y]US2009191047  (SCHLINKER ROBERT HANS [US], et al);
 [A]US2009260345  (CHAUDHRY ZAFFIR [US]);
 [Y]US2010192595  (ORLANDO ROBERT JOSEPH [US], et al)
Examination   - Bruce J. Clark ET AL, "MEASURED AND PREDICTED NOISE OF THE AVCO-LYCOMING YF-102 TURBOFAN NOISE", NASA Technical Memorandum 79069, (19790314), pages 1 - 18, URL: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19790007786.pdf, (20161213), XP055328531
    - Meyer Reshotko ET AL, "Core noise measurements on a YF-102 turbofan engine", NASA Technical memorandum X-73587, (19770124), URL: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19770010121.pdf, (20160525), XP055275146
otherUS3194487
 US2004128978
 US2008022691
 US2009191047
 US2009301055
 US2010192595
    - RIEGLER C. ET AL, "THE GEARED TURBOFAN TECHNOLOGY-OPPORTUNITIES, CHALLENGES AND READINESS STATUS", TECHNICAL REPORT, MTU AERO ENGINES GMBH, (2007), XP003035801
    - ZALUD, "GEARS PUT A NEW SPIN ON TURBOFAN PERFORMANCE", MACHINE DESIGN.COM, (19881105), XP055129882
    - "GEARED FAN", DENÓS R; ET AL, AERO-ENGINE DESIGN: FROM STATE-OF-THE-ART TURBOFANS TOWARDS INNOVATIVE ARCHITECTURES - HARDCOVER. LECTURES SERIES 2008-03, (20080303), pages 1-26,60 - 76, XP003035510
OppositionUS3194487
 US3373928
 US7806651
 US8246292
    - C. RIEGLER et al., "THE GEARED TURBOFAN TECHNOLOGY - OPPORTUNITIES, CHALLENGED AND READINESS", Proceedings CEAS 2007, (20070911), XP055195802
    - DENÓS R. et al, "GEARED FAN", AERO-ENGINE DESING: FROM STATE OF THE ART TURBOFANS TOWARDS INNOVATIVE ARCHITECTURES, (20080303), pages 1-26, 60 - 76, XP003035510
    - "Chapter 2", George Cramoisi, Air Cash Investigations. Accident Report NTSB/AAR-82-8, (20120000), pages 45 - 47, XP055523333
    - Dennis Culley et al, "More Intelligent Gas Turbine Engines (Des turbomoteurs plus intelligents)", RTO Technical Report TR-AVT-128, (20090400), XP055523359
    - anonymous, "Gas turbine", Wikipedia, the free encyclopedia, (20180819), pages 1 - 21, URL: https://en.wikipedia.org/wiki/Gas_turbine#Jet.engines, XP055523339
    - "Turbo engine fan section", anonymous, THE AIRCRAFT GAS TURBINE ENGINE AND ITS OPERATION, United Technologies Corporation, (19880800), pages 3-6 - 3-7, XP055523347
    - "3: Compressors", anonymous, The JET ENGINE, Rolls- Royce plc, (19960000), pages 19 - 26, XP055523349
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.