Assignee
FISCHER & PORTER CO
150 granted patents·4,353 citations·filing 1974–1992
Top patents by PatentIndex Score
150 records- 0197US4388834AElectromagnetic flowmeter having a monolithic conduitFISCHER & PORTER CO·Filed 1981·Granted Jun 21, 1983·91 cites·9 claims
- 0295US4397194AUltrasonic flowmeter including means to measure pipe geometryFISCHER & PORTER CO·Filed 1981·Granted Aug 9, 1983·86 cites·7 claims
- 0394US4253340AUnitary electromagnetic flowmeterFISCHER & PORTER CO·Filed 1979·Granted Mar 3, 1981·58 cites·12 claims
- 0493US4774844AEncapsulated electromagnetic flowmeterFISCHER & PORTER CO·Filed 1987·Granted Oct 4, 1988·73 cites·11 claims
- 0591US5019256AUltraviolet lamp rack assemblyFISCHER & PORTER CO·Filed 1990·Granted May 28, 1991·150 cites·14 claims
- 0691US4747312ADouble-loop Coriolis type mass flowmeterFISCHER & PORTER CO·Filed 1987·Granted May 31, 1988·61 cites·12 claims
- 0791US4631969ACapacitance-type electrode assemblies for electromagnetic flowmeterFISCHER & PORTER CO·Filed 1985·Granted Dec 30, 1986·67 cites·8 claims
- 0891US4048854ASystem for determining the ratio of oil to water in a metered fluid streamFISCHER & PORTER CO·Filed 1976·Granted Sep 20, 1977·49 cites·8 claims
- 0990US4852409ASignal recovery system for mass flowmeterFISCHER & PORTER CO·Filed 1988·Granted Aug 1, 1989·59 cites·10 claims
- 1090US4829826ADifferential-pressure transducerFISCHER & PORTER CO·Filed 1988·Granted May 16, 1989·81 cites·10 claims
- 1190US4470299AUltrasonic liquid level meterFISCHER & PORTER CO·Filed 1982·Granted Sep 11, 1984·63 cites·5 claims
- 1290US3999443AElectromagnetic flowmeter with shielded electrodesFISCHER & PORTER CO·Filed 1975·Granted Dec 28, 1976·58 cites·5 claims
- 1389US5235595APacket switchingFISCHER & PORTER CO·Filed 1989·Granted Aug 10, 1993·267 cites·6 claims
- 1489US4550614AOscillatory flowmeterFISCHER & PORTER CO·Filed 1985·Granted Nov 5, 1985·58 cites·10 claims
- 1589US4098118AUnitary electromagnetic flowmeterFISCHER & PORTER CO·Filed 1977·Granted Jul 4, 1978·44 cites·14 claims
- 1688US5243596ANetwork architecture suitable for multicasting and resource lockingFISCHER & PORTER CO·Filed 1992·Granted Sep 7, 1993·230 cites·26 claims
- 1788US4879450ALaser welding techniqueFISCHER & PORTER CO·Filed 1988·Granted Nov 7, 1989·55 cites·9 claims
- 1888US4468971AUltrasonic flowmeter for clean and dirty fluidsFISCHER & PORTER CO·Filed 1982·Granted Sep 4, 1984·46 cites·7 claims
- 1988US4010645ADensity-responsive mass flow vortex type meterFISCHER & PORTER CO·Filed 1976·Granted Mar 8, 1977·40 cites·8 claims
- 2087US4391149ADoppler-type ultrasonic flowmeterFISCHER & PORTER CO·Filed 1981·Granted Jul 5, 1983·42 cites·7 claims
- 2187US4333833AIn-line disinfectant contactorFISCHER & PORTER CO·Filed 1978·Granted Jun 8, 1982·60 cites·2 claims
- 2286US4403933AApparatus for injection-molding a liner onto a metal spoolFISCHER & PORTER CO·Filed 1982·Granted Sep 13, 1983·53 cites·7 claims
- 2386US4317178AMultiple velocity traverse flow rate measuring techniqueFISCHER & PORTER CO·Filed 1979·Granted Feb 23, 1982·49 cites·11 claims
- 2486US4129479AMethod of analyzing residual chlorineFISCHER & PORTER CO·Filed 1975·Granted Dec 12, 1978·47 cites·2 claims
- 2585US3999435ADifferential pressure transmitterFISCHER & PORTER CO·Filed 1976·Granted Dec 28, 1976·45 cites·4 claims
- 2685US3959087AIn-line residual chlorine analyzerFISCHER & PORTER CO·Filed 1974·Granted May 25, 1976·40 cites·3 claims
- 2784US4754365ADifferential pressure transducerFISCHER & PORTER CO·Filed 1987·Granted Jun 28, 1988·54 cites·5 claims
- 2884US4391704AGas-extraction arrangement for wastewater settling tankFISCHER & PORTER CO·Filed 1981·Granted Jul 5, 1983·50 cites·16 claims
- 2984US4084155ATwo-wire transmitter with totalizing counterFISCHER & PORTER CO·Filed 1976·Granted Apr 11, 1978·37 cites·9 claims
- 3084US4051723AForce-type flowmeterFISCHER & PORTER CO·Filed 1976·Granted Oct 4, 1977·36 cites·9 claims
- 3184US4003253AMulti-range vortex-shedding flowmeterFISCHER & PORTER CO·Filed 1975·Granted Jan 18, 1977·36 cites·6 claims
- 3283US4015472ATwo-wire transmission system for vortex flowmeterFISCHER & PORTER CO·Filed 1976·Granted Apr 5, 1977·32 cites·10 claims
- 3382US4704907AElectromagnetic flowmeter with triangular flux driveFISCHER & PORTER CO·Filed 1986·Granted Nov 10, 1987·42 cites·8 claims
- 3482US4270391AFrequency-responsive filter for flowmeter transmission systemFISCHER & PORTER CO·Filed 1979·Granted Jun 2, 1981·29 cites·9 claims
- 3582US4083237ADifferential reluctance motion detectorFISCHER & PORTER CO·Filed 1977·Granted Apr 11, 1978·28 cites·5 claims
- 3681US4297898AStabilized vortex-shedding flowmeterFISCHER & PORTER CO·Filed 1979·Granted Nov 3, 1981·29 cites·12 claims
- 3781US4236410ATemperature-compensated electromagnetic flowmeterFISCHER & PORTER CO·Filed 1978·Granted Dec 2, 1980·32 cites·2 claims
- 3881US4050305AShield and bracket assembly for flowmeterFISCHER & PORTER CO·Filed 1976·Granted Sep 27, 1977·41 cites·5 claims
- 3980US4868797ATime-shared AGC for ultra-sound liquid level meterFISCHER & PORTER CO·Filed 1987·Granted Sep 19, 1989·51 cites·2 claims
- 4080US3946608AVortex flowmeter with external sensorFISCHER & PORTER CO·Filed 1974·Granted Mar 30, 1976·24 cites·7 claims
- 4178US5370000AMagnetic flowmeter with fault detectionFISCHER & PORTER CO·Filed 1992·Granted Dec 6, 1994·44 cites·12 claims
- 4278US4821569AParasitic echo pulse rejector for ultrasonic liquid level meterFISCHER & PORTER CO·Filed 1987·Granted Apr 18, 1989·36 cites·9 claims
- 4378US4428241AElectrode wiring harness for magnetic flowmeterFISCHER & PORTER CO·Filed 1981·Granted Jan 31, 1984·32 cites·10 claims
- 4478US4329879AInsulating liner for electromagnetic flowmeter tubeFISCHER & PORTER CO·Filed 1980·Granted May 18, 1982·30 cites·4 claims
- 4578US4128024AFuse-mateFISCHER & PORTER CO·Filed 1977·Granted Dec 5, 1978·21 cites·6 claims
- 4677US4953408ACapacitive type electromagnetic flowmeterFISCHER & PORTER CO·Filed 1989·Granted Sep 4, 1990·37 cites·7 claims
- 4777US4565098AHybrid sensing system for vortex flowmeterFISCHER & PORTER CO·Filed 1984·Granted Jan 21, 1986·27 cites·9 claims
- 4877US4074571AObstacle assembly for vortex type flowmeterFISCHER & PORTER CO·Filed 1974·Granted Feb 21, 1978·26 cites·2 claims
- 4976US4745543AFront panel for a process controllerFISCHER & PORTER CO·Filed 1987·Granted May 17, 1988·38 cites·4 claims
- 5076US4313827AEnhanced disinfection systemFISCHER & PORTER CO·Filed 1980·Granted Feb 2, 1982·40 cites·8 claims
Showing the top 50 of 150 patent records by PatentIndex Score.
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