Inventor · disambiguated record
Evan A. Fradenburgh
Also filed as: FRADENBURGH EVAN A
18 granted patents·748 citations·filing 1976–1995
96Inventor score
Top patents by PatentIndex Score
18 records- 0197US4142697AMechanism for synchronously varying diameter of a plurality of rotors and for limiting the diameters thereofUNITED TECHNOLOGIES CORP·Filed 1977·Granted Mar 6, 1979·94 cites·24 claims
- 0296US4248572AHelicopter bladeUNITED TECHNOLOGIES CORP·Filed 1978·Granted Feb 3, 1981·83 cites·10 claims
- 0387US5015842AHigh density fiber optic damage detection systemUNITED TECHNOLOGIES CORP·Filed 1989·Granted May 14, 1991·81 cites·24 claims
- 0486US4324530AHelicopter blade with a tip having a selected combination of sweep, taper and anhedral to improve hover efficiencyUNITED TECHNOLOGIES CORP·Filed 1980·Granted Apr 13, 1982·69 cites·9 claims
- 0584US4212588ASimplified rotor head fairingUNITED TECHNOLOGIES CORP·Filed 1978·Granted Jul 15, 1980·49 cites·8 claims
- 0683US4591400AMethod of forming a fiber reinforced composite article of a complex configurationUNITED TECHNOLOGIES CORP·Filed 1984·Granted May 27, 1986·33 cites·8 claims
- 0783US4323332AHingeless helicopter rotor with elastic gimbal hubUNITED TECHNOLOGIES CORP·Filed 1979·Granted Apr 6, 1982·50 cites·12 claims
- 0878US5253979AVariable diameter rotor having an offset twistUNITED TECHNOLOGIES CORP·Filed 1992·Granted Oct 19, 1993·64 cites·9 claims
- 0977US4652122AGust detection systemUNITED TECHNOLOGIES CORP·Filed 1985·Granted Mar 24, 1987·41 cites·6 claims
- 1073US5735670ARotor system having alternating length rotor blades and positioning means therefor for reducing blade-vortex interaction (BVI) noiseSIKORSKY AIRCRAFT CORP·Filed 1995·Granted Apr 7, 1998·48 cites·23 claims
- 1163US4216924AHelicopterUNITED TECHNOLOGIES CORP·Filed 1978·Granted Aug 12, 1980·18 cites·15 claims
- 1261US4655685AHelicopter main rotor blade having a short span slot near the tip endUNITED TECHNOLOGIES CORP·Filed 1985·Granted Apr 7, 1987·25 cites·3 claims
- 1356US4648800AComposite flexbeam for a rotary wing aircraftUNITED TECHNOLOGIES CORP·Filed 1984·Granted Mar 10, 1987·21 cites·4 claims
- 1452US4666753AFilament wound structure for use as a torque driveUNITED TECHNOLOGIES CORP·Filed 1985·Granted May 19, 1987·13 cites·15 claims
- 1547US4074952ALocking control and overtravel safety stop system for variable length rotor bladesUNITED TECHNOLOGIES CORP·Filed 1976·Granted Feb 21, 1978·16 cites·14 claims
- 1646US5299912ADrive system for changing the diameter of a variable diameter rotorUNITED TECHNOLOGIES CORP·Filed 1992·Granted Apr 5, 1994·18 cites·13 claims
- 1740US4080097ALocking control and overtravel safety stop system for variable length rotor bladesUNITED TECHNOLOGIES CORP·Filed 1976·Granted Mar 21, 1978·12 cites·35 claims
- 1839US5116201AAdjustment means for helicopter rotor blade viscous damperUNITED TECHNOLOGIES CORP·Filed 1991·Granted May 26, 1992·13 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →