Inventor · disambiguated record
Rollin George Giffin
Also filed as: GIFFIN III ROLLIN G · GIFFIN III ROLLIN GEORGE · GIFFIN ROLLIN G · GIFFIN ROLLIN GEORGE
31 granted patents·2 pending applications·1,666 citations·filing 1978–2010
98Inventor score
Top patents by PatentIndex Score
33 records- 0199US5261227AVariable specific thrust turbofan engineGEN ELECTRIC·Filed 1992·Granted Nov 16, 1993·247 cites·7 claims
- 0298US5809772ATurbofan engine with a core driven supercharged bypass ductGEN ELECTRIC·Filed 1996·Granted Sep 22, 1998·217 cites·16 claims
- 0397US7246484B2FLADE gas turbine engine with counter-rotatable fansGEN ELECTRIC·Filed 2003·Granted Jul 24, 2007·111 cites·55 claims
- 0497US4809498AGas turbine engineGEN ELECTRIC·Filed 1988·Granted Mar 7, 1989·128 cites·74 claims
- 0596US4254619APartial span inlet guide vane for cross-connected enginesGEN ELECTRIC·Filed 1978·Granted Mar 10, 1981·98 cites·1 claims
- 0695US6672072B1Pressure boosted compressor cooling systemGEN ELECTRIC·Filed 1998·Granted Jan 6, 2004·131 cites·19 claims
- 0794US7624565B2Hybrid worm gas turbine engineGEN ELECTRIC·Filed 2007·Granted Dec 1, 2009·18 cites·46 claims
- 0891US7631484B2High pressure ratio aft fanGIFFIN ROLLIN GEORGE·Filed 2006·Granted Dec 15, 2009·40 cites·13 claims
- 0989US8695324B2Multistage tip fanGIFFIN ROLLIN GEORGE·Filed 2010·Granted Apr 15, 2014·14 cites·27 claims
- 1088US7707815B2Axial flow positive displacement worm gas generatorGEN ELECTRIC·Filed 2005·Granted May 4, 2010·12 cites·44 claims
- 1188US5155993AApparatus for compressor air extractionGEN ELECTRIC·Filed 1990·Granted Oct 20, 1992·67 cites·37 claims
- 1286US7726115B2Axial flow positive displacement worm compressorGEN ELECTRIC·Filed 2006·Granted Jun 1, 2010·23 cites·51 claims
- 1384US5154052AExhaust assembly for a high speed civil transport aircraft engineGEN ELECTRIC·Filed 1990·Granted Oct 13, 1992·76 cites·37 claims
- 1483US8708643B2Counter-rotatable fan gas turbine engine with axial flow positive displacement worm gas generatorGIFFIN ROLLIN GEORGE·Filed 2007·Granted Apr 29, 2014·8 cites·60 claims
- 1583US8622687B2Method of operating adaptive core enginesGIFFIN ROLLIN GEORGE·Filed 2010·Granted Jan 7, 2014·9 cites·13 claims
- 1683US6041589AAsymmetric turboprop boosterGEN ELECTRIC·Filed 1998·Granted Mar 28, 2000·49 cites·19 claims
- 1783US4817378AGas turbine engine with augmentor and variable area bypass injectorGEN ELECTRIC·Filed 1988·Granted Apr 4, 1989·38 cites·15 claims
- 1882US5327716ASystem and method for tailoring rotor tip bleed airGEN ELECTRIC·Filed 1993·Granted Jul 12, 1994·49 cites·12 claims
- 1979US6662546B1Gas turbine engine fanGEN ELECTRIC·Filed 1993·Granted Dec 16, 2003·42 cites·9 claims
- 2078US5345760ATurboprop boosterGEN ELECTRIC·Filed 1993·Granted Sep 13, 1994·53 cites·10 claims
- 2176US7144221B2Method and apparatus for assembling gas turbine enginesGEN ELECTRIC·Filed 2004·Granted Dec 5, 2006·32 cites·18 claims
- 2274US5231825AMethod for compressor air extractionGEN ELECTRIC·Filed 1991·Granted Aug 3, 1993·38 cites·3 claims
- 2373US5056335AAuxiliary refrigerated air system employing input air from turbine engine compressor after bypassing and conditioning within auxiliary systemGEN ELECTRIC·Filed 1990·Granted Oct 15, 1991·52 cites·12 claims
- 2470US7854111B2Axial flow positive displacement turbineGEN ELECTRIC·Filed 2008·Granted Dec 21, 2010·3 cites·46 claims
- 2569US7784266B2Methods and systems for supplying air to a vehicleGEN ELECTRIC·Filed 2006·Granted Aug 31, 2010·9 cites·15 claims
- 2669US5680754ACompressor splitter for use with a forward variable area bypass injectorGEN ELECTRIC·Filed 1990·Granted Oct 28, 1997·30 cites·14 claims
- 2767US5036678AAuxiliary refrigerated air system employing mixture of air bled from turbine engine compressor and air recirculated within auxiliary systemGEN ELECTRIC·Filed 1990·Granted Aug 6, 1991·36 cites·14 claims
- 2861US8328542B2Positive displacement rotary components having main and gate rotors with axial flow inlets and outletsMURROW KURT DAVID·Filed 2008·Granted Dec 11, 2012·1 cites·37 claims
- 2959US7905084B2Rotary pressure rise combustor for a gas turbine engineGEN ELECTRONIC CO·Filed 2008·Granted Mar 15, 2011·8 cites·20 claims
- 3058US8127527B2Methods and systems for operating oxidizer systemsGIFFIN ROLLIN GEORGE·Filed 2004·Granted Mar 6, 2012·9 cites·18 claims
- 3148US5820345ASplit rotor shaft driven lift fanGEN ELECTRIC·Filed 1996·Granted Oct 13, 1998·18 cites·12 claims
- 3243US2007237642A1Axial flow positive displacement worm pumpMURROW KURT D·Filed 2006·Application pending·0 cites
- 3341US2011120083A1Gas turbine engine with outer fansGIFFIN ROLLIN GEORGE·Filed 2010·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Rollin George Giffin files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →