Inventor · disambiguated record
Eric K. Pritchard
Also filed as: PRITCHARD ERIC · PRITCHARD ERIC K · PRITCHARD ERIC KAISER
46 granted patents·1,358 citations·filing 1975–2022
99Inventor score
Files withPRITCHARD ERIC K15SUPREME ELASTIC CORP6PRITCHARD ERIC KAISER3VISION III IMAGING INC3DIGITAL HARMONIC LLC2
Top patents by PatentIndex Score
46 records- 0196US4262336AMulti-axis contouring control systemPRITCHARD ERIC K·Filed 1979·Granted Apr 14, 1981·89 cites·57 claims
- 0295US6381940B1Multi-component yarn and method of making the sameSUPREME ELASTIC CORP·Filed 2000·Granted May 7, 2002·75 cites·20 claims
- 0395US4995084ASemiconductor emulation of tube amplifiersPRITCHARD ERIC K·Filed 1988·Granted Feb 19, 1991·56 cites·38 claims
- 0494US4087732ADigital stepping motor device circuitPRITCHARD ERIC K·Filed 1976·Granted May 2, 1978·41 cites·10 claims
- 0593US6367290B2Knit article having ravel-resistant edge portion and composite yarn for making ravel-resistant knit articleSUPREME ELASTIC CORP·Filed 2001·Granted Apr 9, 2002·47 cites·13 claims
- 0693US6341483B1Multi-component yarn and making the sameSUPREME ELASTIC CORP·Filed 2000·Granted Jan 29, 2002·57 cites·41 claims
- 0793US4214823AAnimation stand control systemPRITCHARD ERIC K·Filed 1979·Granted Jul 29, 1980·23 cites·13 claims
- 0891US6230524B1Composite yarn having fusible constituent for making ravel-resistant knit article and knit article having ravel-resistant edge portionSUPREME ELASTIC CORP·Filed 1999·Granted May 15, 2001·59 cites·23 claims
- 0990US6752685B2Adaptive nozzle system for high-energy abrasive stream cuttingLAI EAST LASER APPLIC INC·Filed 2002·Granted Jun 22, 2004·46 cites·31 claims
- 1089US4809336ASemiconductor amplifier with tube amplifier characteristicsPRITCHARD ERIC K·Filed 1987·Granted Feb 28, 1989·35 cites·29 claims
- 1189US4449196AData processing system for multi-precision arithmeticPRITCHARD ERIC K·Filed 1980·Granted May 15, 1984·51 cites·8 claims
- 1288US6349531B1Multipart component for a cut resistant composite yarn and method of makingSUPREME ELASTIC CORP·Filed 1999·Granted Feb 26, 2002·55 cites·35 claims
- 1387US5133014ASemiconductor emulation of tube amplifiersPRITCHARD ERIC K·Filed 1990·Granted Jul 21, 1992·53 cites·37 claims
- 1486US6212914B1Knit article having ravel-resistant edge portion and composite yarn for making ravel-resistant knit articleSUPREME ELASTIC CORP·Filed 1999·Granted Apr 10, 2001·41 cites·9 claims
- 1586US5014126AMethod and apparatus for recording images with a single image receiver for autostereoscopic displayVISION III IMAGING INC·Filed 1989·Granted May 7, 1991·50 cites·42 claims
- 1682US11293853B2System and method for measuring vibrational spectra in living cells and tissue over timeDIGITAL HARMONIC LLC·Filed 2019·Granted Apr 5, 2022·4 cites·21 claims
- 1782US4140956ADigital stepping motor drive circuitPRITCHARD ERIC K·Filed 1978·Granted Feb 20, 1979·20 cites·8 claims
- 1881US4584512AMicrostepping drives with waveform tuning and microprocessor controlPRITCHARD ERIC K·Filed 1983·Granted Apr 22, 1986·28 cites·76 claims
- 1981US4350943AAmplifier for inductive loads with corrective current sensingPRITCHARD ERIC K·Filed 1980·Granted Sep 21, 1982·29 cites·26 claims
- 2080US5636284ASolid state emulation of vacuum tube audio power amplifiersFiled 1994·Granted Jun 3, 1997·34 cites·54 claims
- 2179US4966436AApparatus for obtaining images for use in displaying a three-dimensionalMAYHEW CHRISTOPHER A·Filed 1989·Granted Oct 30, 1990·37 cites·18 claims
- 2276US6846221B2Adaptive nozzle system for high-energy abrasive stream cuttingLAI EAST LASER APPLIC INC·Filed 2003·Granted Jan 25, 2005·17 cites·4 claims
- 2376US4815819AMethod for obtaining images for use in displaying a three-dimensional illusion and related image recording mediumMAYHEW CHRISTOPHER A·Filed 1987·Granted Mar 28, 1989·32 cites·12 claims
- 2475US5325193ASingle camera autostereoscopic imaging systemVISION III IMAGING INC·Filed 1992·Granted Jun 28, 1994·33 cites·21 claims
- 2574US5157484ASingle camera autosteroscopic imaging systemVISION III IMAGING INC·Filed 1990·Granted Oct 20, 1992·31 cites·25 claims
- 2673US5361667ATermination for strings of a musical instrumentPRITCHARD ERIC K·Filed 1993·Granted Nov 8, 1994·21 cites·25 claims
- 2771US6411720B1Speaker systems with lower frequency of resonanceFiled 1998·Granted Jun 25, 2002·45 cites·31 claims
- 2869US5761317ATube amplifier fat emulation structureFiled 1996·Granted Jun 2, 1998·27 cites·67 claims
- 2969US4100471AStepping motor control circuitPRITCHARD ERIC K·Filed 1976·Granted Jul 11, 1978·15 cites·13 claims
- 3068US6057737ANon-linear asymmetrical audio amplifiersFiled 1998·Granted May 2, 2000·26 cites·21 claims
- 3168US5761316AVariable and reactive audio power amplifierFiled 1996·Granted Jun 2, 1998·25 cites·66 claims
- 3264US12461013B2System and method for measuring low-noise vibrational spectraDIGITAL HARMONIC LLC·Filed 2022·Granted Nov 4, 2025·0 cites·23 claims
- 3364US4302712AMethod of minimizing resonance in stepping motor and improved driver thereforPRITCHARD ERIC K·Filed 1980·Granted Nov 24, 1981·15 cites·13 claims
- 3463US5434536ASemiconductor emulation of vacuum tubesFiled 1992·Granted Jul 18, 1995·18 cites·69 claims
- 3562US5734725ATube emulator amplifier systemFiled 1995·Granted Mar 31, 1998·19 cites·55 claims
- 3659US5802182AAudio process distortionFiled 1996·Granted Sep 1, 1998·18 cites·27 claims
- 3754US4589321AString attachment means for a tuning machineSMITH PAUL REED·Filed 1984·Granted May 20, 1986·12 cites·15 claims
- 3853US5848165AFat sound creation meansFiled 1996·Granted Dec 8, 1998·14 cites·56 claims
- 3950US6631195B1Speaker attenuation for practicing a musical instrumentFiled 1998·Granted Oct 7, 2003·12 cites·20 claims
- 4050USD429236SSpeaker cabinet including an amplifierPRITCHARD ERIC KAISER·Filed 1998·Granted Aug 8, 2000·7 cites·1 claims
- 4148US4339701ASwitching frequency stabilization and load fault detection in switching amplifiersPRITCHARD ERIC K·Filed 1980·Granted Jul 13, 1982·9 cites·36 claims
- 4248US4272713ASwitching transconductance amplifier for inductive loadsPRITCHARD ERIC K·Filed 1979·Granted Jun 9, 1981·7 cites·6 claims
- 4347USD432582SPA logo designPRITCHARD ERIC KAISER·Filed 2000·Granted Oct 24, 2000·6 cites·1 claims
- 4447US5805713ASolid state circuit for emulating push-pull tube amplifierFiled 1996·Granted Sep 8, 1998·10 cites·34 claims
- 4535US3962752AMethod and apparatus for removing meat from crabsINNOVATIVE SEAFOOD SYSTEMS INC·Filed 1975·Granted Jun 15, 1976·8 cites·6 claims
- 4631USD430144SSpeaker grill depicting a hat and a guitarPRITCHARD ERIC KAISER·Filed 1998·Granted Aug 29, 2000·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →