| 6254353 |
Method and apparatus for controlling operation of a submersible pump |
Massimo Polo, Stefano Cavagna, Robert M. Gamber |
2001-07-03 |
| 5945802 |
Ground fault detection and protection method for a variable speed ac electric motor |
Robert M. Gamber, Massimo Polo |
1999-08-31 |
| 5883489 |
High speed deep well pump for residential use |
— |
1999-03-16 |
| 5486748 |
Method and apparatus for improved efficiency in a pulse-width-modulated alternating current motor drive |
Richard W. Boothe |
1996-01-23 |
| 5403244 |
Electric vehicle drive train with direct coupling transmission |
Jerome Benedict Tankersley, Richard W. Boothe |
1995-04-04 |
| 5376869 |
Electric vehicle drive train with rollback detection and compensation |
— |
1994-12-27 |
| 5369540 |
Electric vehicle drive train with contactor protection |
Ralph A. Benson |
1994-11-29 |
| 5287051 |
Method and apparatus for improved efficiency in a pulse-width-modulated alternating current motor drive |
Richard W. Boothe |
1994-02-15 |
| 5227703 |
Protection system for alternating current, battery powered electric traction motor vehicle |
Richard W. Boothe |
1993-07-13 |
| 4870564 |
Distributed input/output system |
William J. Ketelhut |
1989-09-26 |
| 4764868 |
Distributed input/output system |
William J. Ketelhut |
1988-08-16 |
| 4593380 |
Dual function input/output for a programmable controller |
Mark Kocher, Ronald E. Gareis, William J. Ketelhut |
1986-06-03 |
| 4520299 |
Turning speed controller for electric vehicles having dual drive motors |
— |
1985-05-28 |
| 4500818 |
Dual motor proportioning control |
Ronald E. Gareis, Amratlal C. Lodhia |
1985-02-19 |
| 4468599 |
Plug current regulator |
Max Berman, William G. Klimmek |
1984-08-28 |
| 4454503 |
Transistor fault indicator |
— |
1984-06-12 |
| 4449080 |
Electric vehicle protection scheme |
Robert C. Clark |
1984-05-15 |
| 4443744 |
Method and apparatus for charge enhancement of a commutating capacitor |
— |
1984-04-17 |
| 4427930 |
Electric vehicle current regulator |
Max Berman, William G. Klimmek |
1984-01-24 |
| 4423362 |
Electric vehicle current regulating system |
Robert C. Clark |
1983-12-27 |
| 4375603 |
Shunt-wound control for on-road vehicle |
— |
1983-03-01 |
| 4320334 |
Battery state-of-charge indicator |
Richard K. Davis |
1982-03-16 |
| 4234840 |
Battery state-of-charge indicator |
Richard K. Davis |
1980-11-18 |
