Fisher; Sidney T.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Fisher; Sidney T..The latest application filed is for "keyboard with simultaneous operations".
- Fisher; Sidney T. - Montreal Quebec CA
- Fisher; Sidney T. - Mt. Royal H3R 1K3 CA
- Fisher; Sidney T. - Town of Mt. Royal Montreal CA
| Patent | Date |
|---|---|
| Keyboard with simultaneous operations Grant 4,498,073 - Fisher , et al. February 5, 1 | 1985-02-05 |
| Periodic wave elimination by negative feedback Grant 4,456,990 - Fisher , et al. June 26, 1 | 1984-06-26 |
| Constant-frequency dynamo with stationary armature Grant 4,387,335 - Fisher , et al. June 7, 1 | 1983-06-07 |
| Multiple-site underground magnetic heating of hydrocarbons Grant 4,344,483 - Fisher , et al. August 17, 1 | 1982-08-17 |
| Noise-reduction sampling system Grant 4,308,614 - Fisher , et al. December 29, 1 | 1981-12-29 |
| Waveform correction by sampling Grant 4,285,058 - Fisher , et al. August 18, 1 | 1981-08-18 |
| Acoustic transmission system Grant 4,276,624 - Fisher , et al. June 30, 1 | 1981-06-30 |
| Receiving apparatus for messages with in-band signals Grant 4,268,914 - Fisher , et al. May 19, 1 | 1981-05-19 |
| Synchronous detection with sampling Grant 4,253,066 - Fisher , et al. February 24, 1 | 1981-02-24 |
| Compandor with sampling and equalization Grant 4,253,072 - Fisher , et al. February 24, 1 | 1981-02-24 |
| Noise-reducing apparatus Grant 4,249,260 - Fisher , et al. February 3, 1 | 1981-02-03 |
| Amplifier with switched capacitors Grant 4,249,135 - Fisher , et al. February 3, 1 | 1981-02-03 |
| Measurement of evoked nervous system potentials Grant 4,244,376 - Fisher , et al. January 13, 1 | 1981-01-13 |
| Air turbulence reducer Grant 4,227,662 - Fisher , et al. October 14, 1 | 1980-10-14 |
| Quantized modulation systems Grant 4,205,241 - Fisher , et al. May 27, 1 | 1980-05-27 |
| Deep focus fiber optic lens Grant 4,189,207 - Fisher , et al. February 19, 1 | 1980-02-19 |
| A-m stereo system Grant 4,182,932 - Fisher , et al. January 8, 1 | 1980-01-08 |
| Sampling modulated waves Grant 4,178,553 - Fisher , et al. December 11, 1 | 1979-12-11 |
| Induction heating of coal in situ Grant 4,116,273 - Fisher , et al. September 26, 1 | 1978-09-26 |
| Quasi-toroidal inductor and resonator Grant 4,053,856 - Fisher , et al. October 11, 1 | 1977-10-11 |
| Recovery of hydrocarbons from partially exhausted oil wells by mechanical wave heating Grant 4,049,053 - Fisher , et al. September 20, 1 | 1977-09-20 |
| Extraction from underground coal deposits Grant 4,043,393 - Fisher , et al. August 23, 1 | 1977-08-23 |
| Extraction of hydrocarbons in situ from underground hydrocarbon deposits Grant 4,008,762 - Fisher , et al. February 22, 1 | 1977-02-22 |
| Method for induction heating of underground hydrocarbon deposits using a quasi-toroidal conductor envelope Grant 4,008,761 - Fisher , et al. February 22, 1 | 1977-02-22 |
| Induction heating of underground hydrocarbon deposits Grant 3,989,107 - Fisher , et al. November 2, 1 | 1976-11-02 |
| Electric induction heating of underground ore deposits Grant 3,988,036 - Fisher , et al. October 26, 1 | 1976-10-26 |
| Exraction of hydrocarbons in situ from underground hydrocarbon deposits Grant 3,972,372 - Fisher , et al. August 3, 1 | 1976-08-03 |
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