Eric K. Pritchard

Person

Berkeley Springs, WV, US

People

Patents Grantslast 30 patents

Information Patent Grant
System and method for measuring vibrational spectra in living cells...
- Patent number 11,293,853
- Issue date Apr 5, 2022
- Digital Harmonic LLC
- Paul Reed Smith
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Speaker attenuation for practicing a musical instrument
- Patent number 6,631,195
- Issue date Oct 7, 2003
- Eric K. Pritchard
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Speaker systems with lower frequency of resonance
- Patent number 6,411,720
- Issue date Jun 25, 2002
- Eric K. Pritchard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Non-linear asymmetrical audio amplifiers
- Patent number 6,057,737
- Issue date May 2, 2000
- Eric K. Pritchard
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Fat sound creation means
- Patent number 5,848,165
- Issue date Dec 8, 1998
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Solid state circuit for emulating push-pull tube amplifier
- Patent number 5,805,713
- Issue date Sep 8, 1998
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Audio process distortion
- Patent number 5,802,182
- Issue date Sep 1, 1998
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Variable and reactive audio power amplifier
- Patent number 5,761,316
- Issue date Jun 2, 1998
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Tube amplifier fat emulation structure
- Patent number 5,761,317
- Issue date Jun 2, 1998
- Eric K. Pritchard
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Tube emulator amplifier system
- Patent number 5,734,725
- Issue date Mar 31, 1998
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Solid state emulation of vacuum tube audio power amplifiers
- Patent number 5,636,284
- Issue date Jun 3, 1997
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Semiconductor emulation of vacuum tubes
- Patent number 5,434,536
- Issue date Jul 18, 1995
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Termination for strings of a musical instrument
- Patent number 5,361,667
- Issue date Nov 8, 1994
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Single camera autostereoscopic imaging system
- Patent number 5,325,193
- Issue date Jun 28, 1994
- Vision III Imaging, Inc.
- Eric K. Pritchard
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Single camera autosteroscopic imaging system
- Patent number 5,157,484
- Issue date Oct 20, 1992
- Vision III Imaging, Inc.
- Eric K. Pritchard
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Semiconductor emulation of tube amplifiers
- Patent number 5,133,014
- Issue date Jul 21, 1992
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Single camera autostereoscopic imaging system
- Patent number 5,113,253
- Issue date May 12, 1992
- Vision III Imaging, Inc.
- Eric K. Pritchard
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for recording images with a single image recei...
- Patent number 5,014,126
- Issue date May 7, 1991
- Vision III Imaging, Inc.
- Eric K. Pritchard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor emulation of tube amplifiers
- Patent number 4,995,084
- Issue date Feb 19, 1991
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Apparatus for obtaining images for use in displaying a three-dimens...
- Patent number 4,966,436
- Issue date Oct 30, 1990
- Mayhew; Christopher A.
- Christopher A. Mayhew
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for obtaining images for use in displaying a three-dimension...
- Patent number 4,815,819
- Issue date Mar 28, 1989
- Mayhew; Christopher A.
- Christopher A. Mayhew
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor amplifier with tube amplifier characteristics
- Patent number 4,809,336
- Issue date Feb 28, 1989
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
String attachment means for a tuning machine
- Patent number 4,589,321
- Issue date May 20, 1986
- Smith; Paul Reed
- Eric K. Pritchard
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Microstepping drives with waveform tuning and microprocessor control
- Patent number 4,584,512
- Issue date Apr 22, 1986
- Eric K. Pritchard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Data processing system for multi-precision arithmetic
- Patent number 4,449,196
- Issue date May 15, 1984
- Eric K. Pritchard
- G05 - CONTROLLING REGULATING
Information Patent Grant
Amplifier for inductive loads with corrective current sensing
- Patent number 4,350,943
- Issue date Sep 21, 1982
- Eric K. Pritchard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching frequency stabilization and load fault detection in switc...
- Patent number 4,339,701
- Issue date Jul 13, 1982
- Eric K. Pritchard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of minimizing resonance in stepping motor and improved drive...
- Patent number 4,302,712
- Issue date Nov 24, 1981
- Eric K. Pritchard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching transconductance amplifier for inductive loads
- Patent number 4,272,713
- Issue date Jun 9, 1981
- Eric K. Pritchard
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-axis contouring control system
- Patent number 4,262,336
- Issue date Apr 14, 1981
- Eric K. Pritchard
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
LOW-NOISE VIBRATIONAL SPECTROSCOPY
- Publication number 20220228969
- Publication date Jul 21, 2022
- Digital Harmonic LLC
- Paul Reed SMITH
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
System and Method for Measuring Vibrational Spectra in Living Cells...
- Publication number 20200064252
- Publication date Feb 27, 2020
- Digital Harmonic LLC
- Paul Reed SMITH
- G06 - COMPUTING CALCULATING COUNTING

Eric K. Pritchard

Person

Patents Grantslast 30 patents

System and method for measuring vibrational spectra in living cells...

Speaker attenuation for practicing a musical instrument

Speaker systems with lower frequency of resonance

Non-linear asymmetrical audio amplifiers

Fat sound creation means

Solid state circuit for emulating push-pull tube amplifier

Audio process distortion

Variable and reactive audio power amplifier

Tube amplifier fat emulation structure

Tube emulator amplifier system

Solid state emulation of vacuum tube audio power amplifiers

Semiconductor emulation of vacuum tubes

Termination for strings of a musical instrument

Single camera autostereoscopic imaging system

Single camera autosteroscopic imaging system

Semiconductor emulation of tube amplifiers

Single camera autostereoscopic imaging system

Method and apparatus for recording images with a single image recei...

Semiconductor emulation of tube amplifiers

Apparatus for obtaining images for use in displaying a three-dimens...

Method for obtaining images for use in displaying a three-dimension...

Semiconductor amplifier with tube amplifier characteristics

String attachment means for a tuning machine

Microstepping drives with waveform tuning and microprocessor control

Data processing system for multi-precision arithmetic

Amplifier for inductive loads with corrective current sensing

Switching frequency stabilization and load fault detection in switc...

Method of minimizing resonance in stepping motor and improved drive...

Switching transconductance amplifier for inductive loads

Multi-axis contouring control system

Patents Applicationslast 30 patents

LOW-NOISE VIBRATIONAL SPECTROSCOPY

System and Method for Measuring Vibrational Spectra in Living Cells...