John Calvin Fields

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Meridian, MS, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods and apparatus for variable solid state-to-tube rectificatio...
- Patent number 8,610,498
- Issue date Dec 17, 2013
- Peavey Electronics Corporation
- Paul James Stevens
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Methods and apparatus for variable harmonic distortion
- Patent number 7,145,392
- Issue date Dec 5, 2006
- Peavey Electronics Corporation
- Hartley D. Peavey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Methods and apparatus for switching between class A and A/B operati...
- Patent number 7,053,714
- Issue date May 30, 2006
- Peavey Electronics Corporation
- John Calvin Fields
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
AMPLIFIER STARVED HEATER COMPRESSION
- Publication number 20240413798
- Publication date Dec 12, 2024
- Peavey Electronics Corporation
- Hartley Peavey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Methods And Apparatus For Variable Solid State-To-Tube Rectificatio...
- Publication number 20110170716
- Publication date Jul 14, 2011
- Peavey Electronics Corporation
- Paul James Stevens
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Methods and apparatus for variable harmonic distortion
- Publication number 20060012424
- Publication date Jan 19, 2006
- Hartley D. Peavey
- H03 - BASIC ELECTRONIC CIRCUITRY