Inventor · disambiguated record
Fred W. Hoffman
Also filed as: HOFFMAN FRED · HOFFMAN FRED W
46 granted patents·8 pending applications·451 citations·filing 1978–2021
98Inventor score
Files withBENDIX COMMERCIAL VEHICLE SYS26BENDIX COMMERCIAL VEHICLE SYSTEMS LLC8UPPCO INC3ALLIEDSIGNAL TRUCK BRAKE SYST2BENDIX COMMERICAL VEHICLE SYST2
Top patents by PatentIndex Score
54 records- 0194US6074462AAir dryer reservoir module componentsALLIEDSIGNAL TRUCK BRAKE SYST·Filed 1998·Granted Jun 13, 2000·55 cites·9 claims
- 0291US5917139AAir dryer reservoir moduleALLIEDSIGNAL TRUCK BRAKE SYST·Filed 1997·Granted Jun 29, 1999·46 cites·21 claims
- 0388US6585806B2Air dryer reservoir module componentsBENDIX COMMERCIAL VEHICLE SYS·Filed 2000·Granted Jul 1, 2003·37 cites·48 claims
- 0485US6878194B2Remote purge drying unit for compressed gasBENDIX COMMERCIAL VEHICLE SYS·Filed 2003·Granted Apr 12, 2005·35 cites·26 claims
- 0584US6425935B1Trailer air dryer with purge during park featureBENDIX COMMERCIAL VEHICLE SYS·Filed 2000·Granted Jul 30, 2002·20 cites·19 claims
- 0683US6858066B2Air dryer moduleBENDIX COMMERCIAL VEHICLE SYS·Filed 2003·Granted Feb 22, 2005·24 cites·79 claims
- 0782US7100305B2Air dryer mounting assemblyBENDIX COMMERICAL VEHICLE SYST·Filed 2003·Granted Sep 5, 2006·41 cites·17 claims
- 0881US6881245B2Membrane air dryer and method of mounting a membrane dryer to a vehicleBENDIX COMMERCIAL VEHICLE SYS·Filed 2002·Granted Apr 19, 2005·17 cites·32 claims
- 0980US7708793B2Purge exhaust processorBENDIX COMMERCIAL VEHICLE SYS·Filed 2007·Granted May 4, 2010·7 cites·31 claims
- 1078US10933351B2Effluent processing apparatus for a vehicle air brake charging systemBENDIX COMMERCIAL VEHICLE SYSTEMS LLC·Filed 2018·Granted Mar 2, 2021·1 cites·11 claims
- 1177US9101856B2Purge exhaust processorQUINN LEONARD A·Filed 2012·Granted Aug 11, 2015·5 cites·21 claims
- 1277US7789925B2Purge exhaust processorBENDIX COMMERCIAL VEHICLE SYS·Filed 2010·Granted Sep 7, 2010·7 cites·8 claims
- 1377US7117896B2Air system module including reservoir and mounting structureBENDIX COMMERCIAL VEHICLE SYS·Filed 2003·Granted Oct 10, 2006·15 cites·9 claims
- 1476US9156458B2Braking system with non-spring parking brake actuatorBENDIX COMMERCIAL VEHICLE SYS·Filed 2013·Granted Oct 13, 2015·3 cites·29 claims
- 1576USD574940SAir dryer systemBENDIX COMMERCIAL VEHICLE SYS·Filed 2007·Granted Aug 12, 2008·15 cites·1 claims
- 1675US7789950B2Air dryer with oil removal filterBENDIX COMMERCIAL VEHICLE SYS·Filed 2007·Granted Sep 7, 2010·13 cites·15 claims
- 1774US11752462B2Effluent processing apparatus and method for a vehicle air brake charging systemBENDIX COMMERCIAL VEHICLE SYSTEMS LLC·Filed 2021·Granted Sep 12, 2023·0 cites·7 claims
- 1874US9457785B2Heat-exchange dryer apparatus, system and methodBENDIX COMMERCIAL VEHICLE SYSTEMS LLC·Filed 2012·Granted Oct 4, 2016·2 cites·38 claims
- 1974US7520922B2Air dryer systemBENDIX COMMERCIAL VEHICLE SYS·Filed 2005·Granted Apr 21, 2009·6 cites·33 claims
- 2073US7981194B2Air drying arrangementBENDIX COMMERCIAL VEHICLE SYS·Filed 2006·Granted Jul 19, 2011·4 cites·19 claims
- 2166US7631656B2Pressure control valveBENDIX COMMERCIAL VEHICLE SYS·Filed 2005·Granted Dec 15, 2009·4 cites·13 claims
- 2266US7285149B2Oil separator for vehicle air systemBENDIX COMMERCIAL VEHICLE SYS·Filed 2003·Granted Oct 23, 2007·12 cites·35 claims
- 2365US7753069B2Drain valveBENDIX COMMERCIAL VEHICLE SYS·Filed 2004·Granted Jul 13, 2010·11 cites·8 claims
- 2464US11420137B2Effluent processing apparatus for a vehicle air brake charging systemBENDIX COMMERCIAL VEHICLES SYSTEMS LLC·Filed 2021·Granted Aug 23, 2022·0 cites·12 claims
- 2564US7819958B2Purge valveBENDIX COMMERICAL VEHICLE SYST·Filed 2005·Granted Oct 26, 2010·2 cites·18 claims
- 2664US7717680B2Charging systemBENDIX COMMERCIAL VEHICLE SYS·Filed 2006·Granted May 18, 2010·1 cites·39 claims
- 2764US7637985B2Dry compressed air supply moduleBENDIX COMMERCIAL VEHICLE SYS·Filed 2006·Granted Dec 29, 2009·1 cites·17 claims
- 2862US10131338B2Heat-exchange dryer apparatus, system and methodBENDIX COMMERCIAL VEHICLE SYSTEMS LLC·Filed 2016·Granted Nov 20, 2018·0 cites·12 claims
- 2962US2020179856A1Effluent Processing Apparatus and Method for a Vehicle Air Brake Charging SystemBENDIX COMMERCIAL VEHICLE SYSTEMS LLC·Filed 2018·Application pending·0 cites
- 3061USD570979SAir dryer reservoirBENDIX COMMERCIAL VEHICLE SYS·Filed 2007·Granted Jun 10, 2008·8 cites·1 claims
- 3157US10065617B2Apparatus and method for isolating an intact portion of a service braking circuit from a failed service brake wheel endBENDIX COMMERCIAL VEHICLE SYSTEMS LLC·Filed 2016·Granted Sep 4, 2018·0 cites·11 claims
- 3255US6695893B2Continuous flow dryer reservoir module dryer systemBENDIX COMMERCIAL VEHICLE SYS·Filed 2002·Granted Feb 24, 2004·11 cites·27 claims
- 3354US8118911B2Air drying arrangementHOFFMAN FRED W·Filed 2011·Granted Feb 21, 2012·2 cites·10 claims
- 3454US4646889ACompressor drive with oil distribution sleeveALLIED CORP·Filed 1985·Granted Mar 3, 1987·12 cites·10 claims
- 3552US9381899B2Apparatus and method for isolating an intact portion of a service braking circuit from a failed service brake wheel endBENDIX COMMERCIAL VEHICLE SYS·Filed 2012·Granted Jul 5, 2016·0 cites·11 claims
- 3652USD546431SAir dryer reservoirBENDIX COMMERCIAL VEHICLE SYS·Filed 2004·Granted Jul 10, 2007·5 cites·1 claims
- 3751US10583382B2Effluent processing apparatus for a vehicle air brake charging systemBENDIX COMMERCIAL VEHICLE SYSTEMS LLC·Filed 2017·Granted Mar 10, 2020·0 cites·9 claims
- 3851US9180854B2Dual purpose dryers for high flowEBERLING CHARLES E·Filed 2014·Granted Nov 10, 2015·0 cites·20 claims
- 3951US6679527B2Push-to-connect fittings for air brake reservoirsBENDIX COMMERCIAL VEHICLE SYS·Filed 2001·Granted Jan 20, 2004·3 cites·9 claims
- 4047US10583820B2Effluent processing apparatus and method for a vehicle air brake charging systemBENDIX COMMERCIAL VEHICLE SYSTEMS LLC·Filed 2017·Granted Mar 10, 2020·0 cites·10 claims
- 4146US2008110337A1Cartridge life testerBENDIX COMMERCIAL VEHICLE SYS·Filed 2006·Application pending·0 cites
- 4244US2007188013A1Hydraulically powered air charging arrangementHOFFMAN FRED W·Filed 2006·Application pending·0 cites
- 4343USRE39467EAir dryer reservoir module componentsBENDIX COMMERCIAL VEHICLE SYS·Filed 2003·Granted Jan 16, 2007·0 cites·53 claims
- 4442US4421211AConnection mechanism for automatic slack adjusterBENDIX CORP·Filed 1978·Granted Dec 20, 1983·8 cites·6 claims
- 4538US2002189456A1External purge reservoir for air dryersHONEYWELL COMMERCIAL VEHICLE S·Filed 2001·Application pending·0 cites
- 4637US2007209705A1Drain valveNICHOLS RANDALL W·Filed 2006·Application pending·0 cites
- 4737US2002189459A1Isolation mechanism for trailer air dryerHONEYWELL COMMERCIAL VEHICLE S·Filed 2001·Application pending·0 cites
- 4836USD573240SAir dryer systemBENDIX COMMERCIAL VEHICLE SYS·Filed 2007·Granted Jul 15, 2008·1 cites·1 claims
- 4936US2004134343A1Tamper-resistant band clamp for spring brake actuatorFiled 2003·Application pending·0 cites
- 5035US2006236558A1Air dryer mounting assemblyHOFFMAN FRED·Filed 2006·Application pending·0 cites
Showing the top 50 of 54 patent records by PatentIndex Score.
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