Inventor · disambiguated record
Frederic W. Pollman
Also filed as: POLLMAN FREDERIC W
38 granted patents·4 pending applications·779 citations·filing 1977–2007
98Inventor score
Files withSUNDSTRAND CORP15SAUER DANFOSS INC14POLLMAN FREDERIC W6HYDRO GEAR LTD PARTNERSHIP5SAUER INC1
Top patents by PatentIndex Score
42 records- 0198US4399886AControls for variable displacement motor and motorsSUNDSTRAND CORP·Filed 1980·Granted Aug 23, 1983·111 cites·24 claims
- 0296US7354368B2Method and means for shifting a hydromechanical transmissionSAUER DANFOSS INC·Filed 2005·Granted Apr 8, 2008·38 cites·16 claims
- 0392US4478041AHydraulic motor controlSUNDSTRAND CORP·Filed 1981·Granted Oct 23, 1984·47 cites·17 claims
- 0490US4401182AVariable displacement hydraulic drive with disconnectSUNDSTRAND CORP·Filed 1980·Granted Aug 30, 1983·44 cites·14 claims
- 0589US6988959B2Golf putterPOLLMAN FREDERIC W·Filed 2003·Granted Jan 24, 2006·45 cites·9 claims
- 0689US4537364AConstant tension cable reel driveSUNDSTRAND CORP·Filed 1982·Granted Aug 27, 1985·36 cites·12 claims
- 0787US4476680APressure override controlSUNDSTRAND CORP·Filed 1979·Granted Oct 16, 1984·35 cites·15 claims
- 0884US7175537B2Golf putter with lift anglePOLLMAN FREDERIC W·Filed 2005·Granted Feb 13, 2007·18 cites·15 claims
- 0984US6932733B2Hydromechanical transmission with differential steerSAUER DANFOSS INC·Filed 2002·Granted Aug 23, 2005·19 cites·7 claims
- 1083US5560203ATransmission control system and methodSAUER INC·Filed 1995·Granted Oct 1, 1996·36 cites·24 claims
- 1183US4341131AHydromechanical transmissionsSUNDSTRAND CORP·Filed 1980·Granted Jul 27, 1982·34 cites·6 claims
- 1283US4306467AHydromechanical transmissionsSUNDSTRAND CORP·Filed 1980·Granted Dec 22, 1981·34 cites·3 claims
- 1382US6575872B2Method and apparatus for making smooth shifts during mode changes of an HMT when using mechanical clutchesSAUER DANFOSS INC·Filed 2002·Granted Jun 10, 2003·22 cites·6 claims
- 1479US6626785B2Hydromechanical transmissionSAUER DANFOSS INC·Filed 2001·Granted Sep 30, 2003·18 cites·4 claims
- 1577US6533695B2Hydromechanical transmissionSAUER DANFOSS INC·Filed 2001·Granted Mar 18, 2003·25 cites·13 claims
- 1676US7399233B2Golf putter with aiming markPOLLMAN FREDERIC W·Filed 2005·Granted Jul 15, 2008·9 cites·11 claims
- 1776US4232572AEngine-transmission control systemSUNDSTRAND CORP·Filed 1978·Granted Nov 11, 1980·22 cites·17 claims
- 1874US7156759B2Method for selecting a golf putterPOLLMAN FREDERIC W·Filed 2005·Granted Jan 2, 2007·8 cites·9 claims
- 1974US6338689B1Hydromechanical transmissionSAUER DANFOSS INC·Filed 2000·Granted Jan 15, 2002·16 cites·12 claims
- 2073US6860358B1Utility vehicle having hydrostatic driveHYDRO GEAR LTD PARTNERSHIP·Filed 2002·Granted Mar 1, 2005·15 cites·7 claims
- 2172US4419610AReversible regenerating electric vehicle driveSUNDSTRAND CORP·Filed 1982·Granted Dec 6, 1983·21 cites·8 claims
- 2271US4102131AIntegrated transmission-engine controlSUNDSTRAND CORP·Filed 1977·Granted Jul 25, 1978·20 cites·22 claims
- 2370US4426194AViscosity compensating circuitsSUNDSTRAND CORP·Filed 1981·Granted Jan 17, 1984·17 cites·17 claims
- 2469US4246806AMulti-mode hydromechanical transmission shift systemSUNDSTRAND CORP·Filed 1978·Granted Jan 27, 1981·18 cites·16 claims
- 2563US4111003AHydraulic transmission drive assembly with noise attenuation meansSUNDSTRAND CORP·Filed 1977·Granted Sep 5, 1978·17 cites·15 claims
- 2661US6904997B2Compact vehicle transmissionSAUER DANFOSS INC·Filed 2002·Granted Jun 14, 2005·8 cites·11 claims
- 2760US7578362B1Vehicles with dual path hydromechanical transmissionsSAUER DANFOSS INC·Filed 2007·Granted Aug 25, 2009·6 cites·14 claims
- 2859US7594868B1Split-power transmission with mode shiftSAUER DANFOSS INC·Filed 2006·Granted Sep 29, 2009·2 cites·19 claims
- 2956US6939261B1Compact vehicle transmissionSAUER DANFOSS INC·Filed 2004·Granted Sep 6, 2005·5 cites·15 claims
- 3053US6966859B2Hydromechanical transmission with differential steerSAUER DANFOSS INC·Filed 2004·Granted Nov 22, 2005·4 cites·6 claims
- 3151US7717245B2Self-actuating clutchSAUER DANFOSS INC·Filed 2007·Granted May 18, 2010·0 cites·15 claims
- 3251US4462210AInput torque control for a variable displacement hydraulic transmissionSUNDSTRAND CORP·Filed 1981·Granted Jul 31, 1984·12 cites·10 claims
- 3350US7201250B1Utility vehicle having hydrostatic driveHYDRO GEAR LTD PARTNERSHIP·Filed 2004·Granted Apr 10, 2007·4 cites·17 claims
- 3450US6994180B1Utility vehicle having hydrostatic driveHYDRO GEAR LTD PARTNERSHIP·Filed 2004·Granted Feb 7, 2006·4 cites·17 claims
- 3549US2007259734A1Golf putter with compensation for stroking errorsPOLLMAN FREDERIC W·Filed 2006·Application pending·0 cites
- 3645US4352367AElectro-hydraulic control structureSUNDSTRAND CORP·Filed 1980·Granted Oct 5, 1982·8 cites·14 claims
- 3743US7093685B1Utility vehicle having hydrostatic driveHYDRO GEAR LTD PARTNERSHIP·Filed 2004·Granted Aug 22, 2006·1 cites·8 claims
- 3843US2008171626A1Hydromechanical transmission with output summerSAUER DANFOSS INC·Filed 2007·Application pending·0 cites
- 3943US2008103006A1Hydromechanical transmission with input summerSAUER DANFOSS INC·Filed 2007·Application pending·0 cites
- 4041US7080709B1Utility vehicle having hydrostatic driveHYDRO GEAR LTD PARTNERSHIP·Filed 2004·Granted Jul 25, 2006·0 cites·9 claims
- 4139US2002094902A1Small vehicle transmissionFiled 2002·Application pending·0 cites
- 4236US8387738B1Electro-mechanical transmission for compact vehiclesPOLLMAN FREDERIC W·Filed 2006·Granted Mar 5, 2013·0 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →