RL

Richard N. Lehnhoff

General Motors: 11 patents #1,393 of 18,328Top 8%
📍 Kettering, OH: #29 of 471 inventorsTop 7%
🗺 Ohio: #7,178 of 73,341 inventorsTop 10%
Overall (All Time): #474,854 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
5055762 Current controlled full wave transitor bridge inverter for a multiple phase AC machine Robert J. Disser 1991-10-08
4987351 Load-based control of an AC motor Robert J. Disser, Jeff A. Foust, Donald E. Graham, Bruce Heaston 1991-01-22
4970620 FET bridge protection circuit Robert J. Disser 1990-11-13
4931707 Impedance matching circuit Robert J. Disser 1990-06-05
4710685 Vehicle power window control circuit with reverse battery protection Robert J. Disser 1987-12-01
4678972 Self-starting single-phase brushless DC motor and control therefor Jack W. Savage 1987-07-07
4665350 Open-loop brushless motor control system Donald F. Angi, Kevin G. Connors, Jack W. Savage 1987-05-12
4575662 Vehicle power window control circuit 1986-03-11
4562387 Vehicle power window control 1985-12-31
4476416 Power window control for motor vehicle window Joseph P. Licata, Frank J. Terkoski 1984-10-09
4313402 Internal combustion engine radiator cooling fan drive motor control system William C. Staker 1982-02-02