Issued Patents All Time
Showing 1–25 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7643256 | Electromechanical switching circuitry in parallel with solid state switching circuitry selectively switchable to carry a load appropriate to such circuitry | Joshua Isaac Wright, Kanakasabapathi Subramanian, William James Premerlani, John Norton Park | 2010-01-05 |
| 7542250 | Micro-electromechanical system based electric motor starter | William James Premerlani, Fengfeng Tao, Joshua Isaac Wright, Kanakasabapathi Subramanian, John Norton Park +5 more | 2009-06-02 |
| 7473859 | Gating voltage control system and method for electrostatically actuating a micro-electromechanical device | Joshua Isaac Wright, Kanakasabapathi Subramanian, William James Premerlani, John Norton Park, Christopher Fred Keimel +4 more | 2009-01-06 |
| 7091871 | Electrical hazard detection system | Earl W. Roberts | 2006-08-15 |
| 5339210 | DC circuit interrupter | — | 1994-08-16 |
| 5164872 | Load circuit commutation circuit | — | 1992-11-17 |
| 4961100 | Bidirectional field effect semiconductor device and circuit | Bantval J. Baliga, Hsueh-Rong Chang | 1990-10-02 |
| 4725701 | Low voltage vacuum circuit interrupter | — | 1988-02-16 |
| 4723187 | Current commutation circuit | — | 1988-02-02 |
| 4717796 | Low voltage vacuum circuit interrupter | — | 1988-01-05 |
| 4717798 | Low voltage vacuum circuit interrupter | — | 1988-01-05 |
| 4714807 | Low voltage vacuum circuit interrupter | — | 1987-12-22 |
| 4705923 | Low voltage vacuum circuit interrupter | — | 1987-11-10 |
| 4700256 | Solid state current limiting circuit interrupter | — | 1987-10-13 |
| 4698607 | High speed contact driver for circuit interruption device | — | 1987-10-06 |
| 4687950 | Thyristor commutation circuit | — | 1987-08-18 |
| 4675776 | Bistable undervoltage release circuit for circuit breakers | — | 1987-06-23 |
| 4667071 | Low voltage vacuum circuit interrupter | — | 1987-05-19 |
| 4658227 | High speed magnetic contact driver | Henry G. Willard | 1987-04-14 |
| 4656445 | High speed contact driver | Bharat S. Bagepalli, Imdad Imam | 1987-04-07 |
| 4656324 | Current limiting circuit interrupter | — | 1987-04-07 |
| 4652962 | High speed current limiting circuit interrupter | — | 1987-03-24 |
| 4646041 | High speed contact driver for circuit interruption device | — | 1987-02-24 |
| 4645889 | Varistor quenched arc chute for current limiting circuit interrupters | — | 1987-02-24 |
| 4644309 | High speed contact driver for circuit interruption device | — | 1987-02-17 |