Howell; Edward K.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Howell; Edward K..The latest application filed is for "dc circuit interrupter".
- Howell; Edward K. - Hendersonville NC
- Howell; Edward K. - Simsbury CT
| Patent | Date |
|---|---|
| DC circuit interrupter Grant 5,339,210 - Howell August 16, 1 | 1994-08-16 |
| Load circuit commutation circuit Grant 5,164,872 - Howell November 17, 1 | 1992-11-17 |
| Bidirectional field effect semiconductor device and circuit Grant 4,961,100 - Baliga , et al. October 2, 1 | 1990-10-02 |
| Low voltage vacuum circuit interrupter Grant 4,725,701 - Howell February 16, 1 | 1988-02-16 |
| Current commutation circuit Grant 4,723,187 - Howell February 2, 1 | 1988-02-02 |
| Low voltage vacuum circuit interrupter Grant 4,717,798 - Howell January 5, 1 | 1988-01-05 |
| Solid state current limiting circuit interrupter Grant 4,700,256 - Howell October 13, 1 | 1987-10-13 |
| High speed contact driver for circuit interruption device Grant 4,698,607 - Howell October 6, 1 | 1987-10-06 |
| High speed magnetic contact driver Grant 4,658,227 - Howell , et al. April 14, 1 | 1987-04-14 |
| High speed contact driver Grant 4,656,445 - Bagepalli , et al. April 7, 1 | 1987-04-07 |
| High speed current limiting circuit interrupter Grant 4,652,962 - Howell March 24, 1 | 1987-03-24 |
| Gate turn-off control circuit for a solid state circuit interrupter Grant 4,631,621 - Howell December 23, 1 | 1986-12-23 |
| Multiple static trip circuit breaker coordination Grant 4,631,622 - Howell December 23, 1 | 1986-12-23 |
| Noise inverter circuit for a power line communication system Grant 4,609,839 - Howell September 2, 1 | 1986-09-02 |
| Fault current interrupter Grant 4,583,146 - Howell April 15, 1 | 1986-04-15 |
| Carrier current digital data transceiver Grant 4,583,232 - Howell April 15, 1 | 1986-04-15 |
| Power line communication system using the neutral and ground conductors of a residential branch circuit Grant 4,433,326 - Howell February 21, 1 | 1984-02-21 |
| Bargraph displays for static trip circuit breakers Grant 4,429,340 - Howell January 31, 1 | 1984-01-31 |
| Power line communication over ground and neutral conductors of plural residential branch circuits Grant 4,408,186 - Howell October 4, 1 | 1983-10-04 |
| Ground fault circuit interrupting device with improved thyristor triggering Grant 4,345,289 - Howell August 17, 1 | 1982-08-17 |
| Rate sensing instantaneous trip mode network Grant 4,297,741 - Howell October 27, 1 | 1981-10-27 |
| Lightning arrestor Grant 4,288,833 - Howell September 8, 1 | 1981-09-08 |
| Target circuit for circuit breaker static trip unit Grant 4,274,121 - Howell June 16, 1 | 1981-06-16 |
| Long-time and short-time overcurrent signal processor for circuit breaker static trip units Grant 4,266,259 - Howell May 5, 1 | 1981-05-05 |
| Portable ground fault protector Grant 4,216,516 - Howell August 5, 1 | 1980-08-05 |
| Combination circuit breaker-lightning arrestor Grant 4,168,514 - Howell September 18, 1 | 1979-09-18 |
| Negative impedance network Grant 3,986,152 - Howell October 12, 1 | 1976-10-12 |
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