Inventor · disambiguated record
Johan Frederik Witte
Also filed as: WITTE JOHAN · WITTE JOHAN F · WITTE JOHAN FREDERIK
14 granted patents·248 citations·filing 1974–2020
93Inventor score
Files withSTORK AMSTERDAM6NXP BV2BAKER HUGHES INC1GOUDSCHE MACHINEFABRIEK BV1MAXIM INTEGRATED PRODUCTS1
Top patents by PatentIndex Score
14 records- 0194US7535295B1Chopper stabilized amplifiers combining low chopper noise and linear frequency characteristicsMAXIM INTEGRATED PRODUCTS·Filed 2007·Granted May 19, 2009·54 cites·21 claims
- 0290US7920032B2Oscillator based on thermal diffusionSTICHTING TECH WETENSCHAPP·Filed 2006·Granted Apr 5, 2011·22 cites·19 claims
- 0387US11038522B1Offset compensation in ADC circuitryNXP BV·Filed 2020·Granted Jun 15, 2021·3 cites·20 claims
- 0486US4844778AMembrane with perforations, method for producing such a membrane and separating device comprising one or more of such membranesSTORK VECO BV·Filed 1987·Granted Jul 4, 1989·58 cites·20 claims
- 0585US7605716B2Telemetry system with an insulating connectorBAKER HUGHES INC·Filed 2006·Granted Oct 20, 2009·21 cites·21 claims
- 0683US4045879AProcess for treating oil containing vegetable raw materialsSTORK AMSTERDAM·Filed 1976·Granted Sep 6, 1977·25 cites·7 claims
- 0781US4122104AProcess for extracting oils from oil containing raw materialsSTORK AMSTERDAM·Filed 1976·Granted Oct 24, 1978·21 cites·7 claims
- 0850US4024288AApparatus for treating finely divided materials with gaseous fluidWITTE JOHAN FREDERIK·Filed 1975·Granted May 17, 1977·12 cites·6 claims
- 0945US3972278AApparatus for treating finely divided materials with gaseous fluidSTORK AMSTERDAM·Filed 1974·Granted Aug 3, 1976·8 cites·10 claims
- 1043US4486395AContinuously working crystallizerGOUDSCHE MACHINEFABRIEK BV·Filed 1982·Granted Dec 4, 1984·13 cites·7 claims
- 1138US8344740B2System for diagnosing impedances having accurate current source and accurate voltage level-shiftNXP BV·Filed 2005·Granted Jan 1, 2013·0 cites·18 claims
- 1234US4112836AApparatus for treating oil containing vegetable raw materialsSTORK AMSTERDAM·Filed 1976·Granted Sep 12, 1978·4 cites·3 claims
- 1333US4147098AApparatus for continuous treatment of materialSTORK AMSTERDAM·Filed 1977·Granted Apr 3, 1979·4 cites·14 claims
- 1426US4126088AApparatus for pressing liquids, such as oil and the like from liquid containing materialSTORK AMSTERDAM·Filed 1977·Granted Nov 21, 1978·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →