Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6545884 | Alternator system | — | 2003-04-08 |
| 6111768 | Multiple voltage alternator system | — | 2000-08-29 |
| 5753989 | Hybrid alternator | Charles D. Syverson | 1998-05-19 |
| 5710471 | Hybrid alternator with full output at idle | Charles D. Syverson | 1998-01-20 |
| 5656922 | Vehicle based AC power system | William J. LaVelle, Charles D. Syverson | 1997-08-12 |
| 5631544 | Hybrid alternator with voltage regulator | Charles D. Syverson | 1997-05-20 |
| 5502368 | Hybrid alternator with voltage regulator | Charles D. Syverson | 1996-03-26 |
| 4868479 | Low loss permanent magnet motor | Ahn Byong-Ho, Donald E. Fulton, Philip J. Gilinson, Jr., David C. Whipple | 1989-09-19 |
| 4706553 | Fume hood controller | Gordon P. Sharp, George B. Yundt | 1987-11-17 |
| 4670698 | Adaptive induction motor controller | Donald E. Fulton, Jonathan R. Leehey | 1987-06-02 |
| 4528898 | Fume hood controller | Gordon P. Sharp, George B. Yundt | 1985-07-16 |
| 4506321 | Motion control system with adaptive deceleration | Robert H. Comstock, Donald E. Fulton | 1985-03-19 |
| 4469997 | Self generative PWM voltage source inverter induction motor drive | Gordon P. Sharp | 1984-09-04 |
| 4467262 | Polyphase motor drive system with balanced modulation | — | 1984-08-21 |
| 4461987 | Current sensing circuit for motor controls | Donald E. Fulton, William T. Fejes, Jr. | 1984-07-24 |
| 4455513 | Self-starting transducerless, brushless D.C. motor controller | Donald E. Fulton, William T. Fejes, Jr. | 1984-06-19 |
| 4445080 | System for indirectly sensing flux in an induction motor | — | 1984-04-24 |
| 4417194 | Induction generator system with switched capacitor control | Donald E. Fulton | 1983-11-22 |
| 4413223 | Induction generator frequency control system | George B. Yundt | 1983-11-01 |
| 4400655 | Self generative variable speed induction motor drive | Gordon P. Sharp | 1983-08-23 |
| 4356440 | Power factor correction system | William C. Colley, III | 1982-10-26 |
| 4306182 | Polyphase motor drive system with balanced modulation | — | 1981-12-15 |
| 4275343 | Back EMF controlled permanent magnet motor | Donald E. Fulton | 1981-06-23 |