Inventor · disambiguated record
Cullen P. Hart
Also filed as: HART CULLEN P
22 granted patents·564 citations·filing 1974–2001
97Inventor score
Top patents by PatentIndex Score
22 records- 0194US4343338ATire cooling system and methodCATERPILLAR TRACTOR CO·Filed 1981·Granted Aug 10, 1982·55 cites·26 claims
- 0293US5279378AFrictionally driven belted work vehicleCATERPILLAR INC·Filed 1986·Granted Jan 18, 1994·65 cites·46 claims
- 0392US4052852AConstant pressure sealed fluid storage tank for hydraulic systemsCATERPILLAR TRACTOR CO·Filed 1976·Granted Oct 11, 1977·37 cites·10 claims
- 0487USD309314SEndless belt for a belted vehicleCATERPILLAR INC·Filed 1987·Granted Jul 17, 1990·25 cites·1 claims
- 0586US4186815ASuspension and drive for tandem wheel vehicleCATERPILLAR TRACTOR CO·Filed 1977·Granted Feb 5, 1980·41 cites·5 claims
- 0686US4090723ATandem roadwheel leveling system for construction vehiclesCATERPILLAR TRACTOR CO·Filed 1977·Granted May 23, 1978·31 cites·10 claims
- 0784US3997017AAuxiliary hydrostatic front wheel drive systemCATERPILLAR TRACTOR CO·Filed 1974·Granted Dec 14, 1976·30 cites·8 claims
- 0883USD298632SIdler wheel for a track vehicleCATERPILLAR INC·Filed 1985·Granted Nov 22, 1988·21 cites·1 claims
- 0983US4230341AVehicle suspension systemCATERPILLAR TRACTOR CO·Filed 1978·Granted Oct 28, 1980·31 cites·5 claims
- 1081USD302017SEndless belt for a track vehicleCATERPILLAR INC·Filed 1985·Granted Jul 4, 1989·20 cites·1 claims
- 1181US4186814AMotor grader roadwheel arrangementCATERPILLAR TRACTOR CO·Filed 1977·Granted Feb 5, 1980·26 cites·15 claims
- 1277US4069886AAuxiliary hydrostatic front wheel drive systemCATERPILLAR TRACTOR CO·Filed 1976·Granted Jan 24, 1978·24 cites·2 claims
- 1373US4531787ADebris deflector for endless track systemCATERPILLAR TRACTOR CO·Filed 1980·Granted Jul 30, 1985·26 cites·10 claims
- 1469USRE38858EFrictionally driven belted work machineCATERPILLAR INC·Filed 2001·Granted Nov 1, 2005·19 cites·19 claims
- 1567US5363936AFrictionally driven belted work vehicleCATERPILLAR INC·Filed 1993·Granted Nov 15, 1994·32 cites·10 claims
- 1662US4248447AVehicle suspension systemCATERPILLAR TRACTOR CO·Filed 1979·Granted Feb 3, 1981·17 cites·6 claims
- 1761USRE37174EFrictionally driven belted work vehicleCATERPILLAR INC·Filed 1996·Granted May 15, 2001·22 cites·26 claims
- 1856US4262556ADrive mechanismCATERPILLAR TRACTOR CO·Filed 1978·Granted Apr 21, 1981·13 cites·19 claims
- 1949USD298540SDriver wheel for a track vehicleCATERPILLAR INC·Filed 1985·Granted Nov 15, 1988·5 cites·1 claims
- 2046US4411447AVehicle suspension systemCATERPILLAR TRACTOR CO·Filed 1981·Granted Oct 25, 1983·13 cites·14 claims
- 2146US4124254AVehicle braking systemCATERPILLAR TRACTOR CO·Filed 1977·Granted Nov 7, 1978·4 cites·7 claims
- 2236US5676436APositive drive endless rubber belted trackCATERPILLAR INC·Filed 1995·Granted Oct 14, 1997·7 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Cullen P. Hart 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 →