Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5441389 | Eddy current drive and motor control system for oil well pumping | William L. Sieger, Alvin Watson | 1995-08-15 |
| 5363912 | Electromagnetic coupling | — | 1994-11-15 |
| 5149998 | Eddy current drive dynamic braking system for heat reduction | — | 1992-09-22 |
| 5136878 | Air cooled dynamometer vehicle emissons test stand | — | 1992-08-11 |
| 4853573 | Eddy current brake assembly | Herbert W. Wenman | 1989-08-01 |
| 4780637 | Brushless eddy current coupling - stationary field | — | 1988-10-25 |
| 4757225 | Dual stack tachometer/generator | David J. Gritter | 1988-07-12 |
| 4520284 | Rolled housing for eddy current coupling | — | 1985-05-28 |
| 4476410 | Eddy current coupling with slip ring cleaning mechanism | — | 1984-10-09 |