Inventor · disambiguated record
Weldon L. Phelps
Also filed as: PHELPS WELDON L
12 granted patents·504 citations·filing 1978–1993
93Inventor score
Top patents by PatentIndex Score
12 records- 0197US4361871AFailsafe wheel slip control system and method of operating sameCATERPILLAR TRACTOR CO·Filed 1980·Granted Nov 30, 1982·78 cites·11 claims
- 0295US4521856AMultiple threshold wheel slip control apparatus and methodCATERPILLAR TRACTOR CO·Filed 1984·Granted Jun 4, 1985·46 cites·16 claims
- 0393US4702358AClutch brake steering controlCATERPILLAR INC·Filed 1986·Granted Oct 27, 1987·78 cites·11 claims
- 0493US4661766ADual current sensing driver circuitCATERPILLAR INC·Filed 1985·Granted Apr 28, 1987·59 cites·7 claims
- 0593US4344139AMethod and apparatus for controlling differentially driven wheel slipCATERPILLAR TRACTOR CO·Filed 1980·Granted Aug 10, 1982·90 cites·11 claims
- 0684US5189940AMethod and apparatus for controlling an implementCATERPILLAR INC·Filed 1991·Granted Mar 2, 1993·46 cites·25 claims
- 0780US4373697APulse width modulated constant current servo driverCATERPILLAR TRACTOR CO·Filed 1980·Granted Feb 15, 1983·33 cites·3 claims
- 0866US5187709AFault tolerant serial communications networkCATERPILLAR INC·Filed 1991·Granted Feb 16, 1993·31 cites·13 claims
- 0964US4745552AAnti-spin control apparatus and methodCATERPILLAR INC·Filed 1986·Granted May 17, 1988·12 cites·9 claims
- 1055US5438489ASolenoid driver circuit and diagnosticsFiled 1993·Granted Aug 1, 1995·17 cites·6 claims
- 1146US4930366AElectrical transmission control mechanismCATERPILLAR INC·Filed 1988·Granted Jun 5, 1990·12 cites·17 claims
- 1232US4178518AElectronic directional control circuitCATERPILLAR TRACTOR CO·Filed 1978·Granted Dec 11, 1979·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →