Inventor · disambiguated record
Sidney T. Fisher
Also filed as: FISHER CHARLES B · FISHER SIDNEY T
44 granted patents·2,312 citations·filing 1975–1984
98Inventor score
Top patents by PatentIndex Score
44 records- 0199US4344483AMultiple-site underground magnetic heating of hydrocarbonsFISHER CHARLES B·Filed 1981·Granted Aug 17, 1982·344 cites·8 claims
- 0299US4049053ARecovery of hydrocarbons from partially exhausted oil wells by mechanical wave heatingFISHER SIDNEY T·Filed 1976·Granted Sep 20, 1977·351 cites·13 claims
- 0399US4043393AExtraction from underground coal depositsFISHER SIDNEY T·Filed 1976·Granted Aug 23, 1977·343 cites·12 claims
- 0499US4008762AExtraction of hydrocarbons in situ from underground hydrocarbon depositsFISHER SIDNEY T·Filed 1976·Granted Feb 22, 1977·423 cites·11 claims
- 0597US4253066ASynchronous detection with samplingFISHER CHARLES B·Filed 1980·Granted Feb 24, 1981·153 cites·1 claims
- 0697US3988036AElectric induction heating of underground ore depositsFISHER SIDNEY T·Filed 1975·Granted Oct 26, 1976·69 cites·8 claims
- 0796US4308614ANoise-reduction sampling systemFISHER CHARLES B·Filed 1978·Granted Dec 29, 1981·105 cites·3 claims
- 0893US4456990APeriodic wave elimination by negative feedbackFISHER CHARLES B·Filed 1982·Granted Jun 26, 1984·104 cites·3 claims
- 0990US3972372AExraction of hydrocarbons in situ from underground hydrocarbon depositsFISHER SIDNEY T·Filed 1975·Granted Aug 3, 1976·72 cites·13 claims
- 1081US4153882AHigh-efficiency amplifierFISHER CHARLES B·Filed 1978·Granted May 8, 1979·18 cites·2 claims
- 1181US4008761AMethod for induction heating of underground hydrocarbon deposits using a quasi-toroidal conductor envelopeFISHER SIDNEY T·Filed 1976·Granted Feb 22, 1977·30 cites·8 claims
- 1275US4387335AConstant-frequency dynamo with stationary armatureFISHER CHARLES B·Filed 1981·Granted Jun 7, 1983·20 cites·9 claims
- 1375US4244376AMeasurement of evoked nervous system potentialsFISHER CHARLES B·Filed 1980·Granted Jan 13, 1981·32 cites·3 claims
- 1475US4116273AInduction heating of coal in situFISHER SIDNEY T·Filed 1976·Granted Sep 26, 1978·33 cites·16 claims
- 1574US3989107AInduction heating of underground hydrocarbon depositsFISHER SIDNEY T·Filed 1975·Granted Nov 2, 1976·23 cites·9 claims
- 1668US4053856AQuasi-toroidal inductor and resonatorFISHER SIDNEY T·Filed 1976·Granted Oct 11, 1977·15 cites·4 claims
- 1767US4268802AModulation distortion reducerFISHER CHARLES B·Filed 1979·Granted May 19, 1981·15 cites·3 claims
- 1865US4205241AQuantized modulation systemsFISHER CHARLES B·Filed 1979·Granted May 27, 1980·14 cites·5 claims
- 1961US4249135AAmplifier with switched capacitorsFISHER CHARLES B·Filed 1980·Granted Feb 3, 1981·10 cites·3 claims
- 2059US4217748ASafe wire ropeFISHER CHARLES B·Filed 1979·Granted Aug 19, 1980·7 cites·4 claims
- 2156US4189207ADeep focus fiber optic lensFISHER CHARLES B·Filed 1979·Granted Feb 19, 1980·13 cites·2 claims
- 2254US4227662AAir turbulence reducerFISHER CHARLES B·Filed 1979·Granted Oct 14, 1980·11 cites·4 claims
- 2354US4182932AA-m stereo systemFISHER CHARLES B·Filed 1978·Granted Jan 8, 1980·9 cites·6 claims
- 2451US4253072ACompandor with sampling and equalizationFISHER CHARLES B·Filed 1979·Granted Feb 24, 1981·10 cites·6 claims
- 2550US4401853AAM Quadrature stereo systemsFISHER CHARLES B·Filed 1982·Granted Aug 30, 1983·9 cites·9 claims
- 2650US4359091ARecovery of underground hydrocarbonsFISHER CHARLES B·Filed 1981·Granted Nov 16, 1982·17 cites·2 claims
- 2750US4276624AAcoustic transmission systemFISHER CHARLES B·Filed 1979·Granted Jun 30, 1981·9 cites·6 claims
- 2845US4178553ASampling modulated wavesFISHER CHARLES B·Filed 1978·Granted Dec 11, 1979·7 cites·9 claims
- 2944US4498073AKeyboard with simultaneous operationsFISHER CHARLES B·Filed 1983·Granted Feb 5, 1985·7 cites·1 claims
- 3039US4430620ADemodulator system for double sideband suppressed carrier amplitude modulationFISHER CHARLES B·Filed 1983·Granted Feb 7, 1984·5 cites·6 claims
- 3139US4249039ADual-modulation receiving apparatusFISHER CHARLES B·Filed 1980·Granted Feb 3, 1981·5 cites·2 claims
- 3239US4162475ATransducer utilizing samplingFISHER CHARLES B·Filed 1978·Granted Jul 24, 1979·5 cites·19 claims
- 3338US4285058AWaveform correction by samplingFISHER CHARLES B·Filed 1980·Granted Aug 18, 1981·6 cites·2 claims
- 3437US4463392ARecording system with noise reductionFISHER CHARLES B·Filed 1981·Granted Jul 31, 1984·2 cites·9 claims
- 3535US4484944AReduction of iron ores by hydrocarbonsFISHER CHARLES B·Filed 1983·Granted Nov 27, 1984·2 cites·14 claims
- 3635US4268914AReceiving apparatus for messages with in-band signalsFISHER CHARLES B·Filed 1980·Granted May 19, 1981·5 cites·1 claims
- 3734US4168890AAutomatic focusing deviceFISHER CHARLES B·Filed 1978·Granted Sep 25, 1979·3 cites·5 claims
- 3833US4397381AMagnetic brakes and clutchesFISHER CHARLES B·Filed 1981·Granted Aug 9, 1983·2 cites·7 claims
- 3932US4238642AAngle-modulated stereo systemFISHER CHARLES B·Filed 1979·Granted Dec 9, 1980·1 cites·3 claims
- 4031US4510614APredistorted AM stereo transmissionFISHER CHARLES B·Filed 1984·Granted Apr 9, 1985·1 cites·1 claims
- 4131US4429546AHeat transfer in gas compressionFISHER CHARLES B·Filed 1983·Granted Feb 7, 1984·1 cites·5 claims
- 4231US4249260ANoise-reducing apparatusFISHER CHARLES B·Filed 1978·Granted Feb 3, 1981·1 cites·1 claims
- 4330US4406006ADual-signal A-M receiving apparatusFISHER CHARLES B·Filed 1982·Granted Sep 20, 1983·0 cites·7 claims
- 4430US4278952AQuantized angle modulatorFISHER CHARLES B·Filed 1980·Granted Jul 14, 1981·0 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Sidney T. Fisher files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →