J. Howard Marshall III

Person

Pasadena, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Obtaining uniformity of response in analytical measurement in a neu...
- Patent number 4,682,043
- Issue date Jul 21, 1987
- J. Howard Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for controlling neutrons escaping from an elemental analy...
- Patent number 4,266,132
- Issue date May 5, 1981
- MDH Industries, Inc.
- J. Howard Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for analyzing the spectral data in an elemental analyzer...
- Patent number 4,171,485
- Issue date Oct 16, 1979
- MDH Industries, Inc.
- J. Howard Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for reducing pulse pileup in an elemental analyzer measur...
- Patent number 4,152,596
- Issue date May 1, 1979
- MDH Industries, Inc.
- J. Howard Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Circuitry for improving linearity of a counting system
- Patent number 4,090,082
- Issue date May 16, 1978
- MDH Industries Inc.
- J. Howard Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Unipolar wide-range current-to-frequency converter
- Patent number 4,083,044
- Issue date Apr 4, 1978
- MDH Industries Inc.
- J. Howard Marshall
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital telemetering system for subsurface instrumentation
- Patent number 3,991,611
- Issue date Nov 16, 1976
- MDH Industries, Inc.
- J. Howard Marshall
- G08 - SIGNALLING
Information Patent Grant
Circuitry for use with an ionizing-radiation detector
- Patent number 3,984,690
- Issue date Oct 5, 1976
- MDH Industries, Inc.
- J. Howard Marshall
- G01 - MEASURING TESTING
Information Patent Grant
Frequency-programmed electron-capture detector
- Patent number RE28951
- Issue date Aug 31, 1976
- Analog Technology Corporation
- J. Howard Marshall
- 250 - Radiant energy

J. Howard Marshall III

Person

Patents Grantslast 30 patents

Obtaining uniformity of response in analytical measurement in a neu...

Apparatus for controlling neutrons escaping from an elemental analy...

Apparatus for analyzing the spectral data in an elemental analyzer...

Apparatus for reducing pulse pileup in an elemental analyzer measur...

Circuitry for improving linearity of a counting system

Unipolar wide-range current-to-frequency converter

Digital telemetering system for subsurface instrumentation

Circuitry for use with an ionizing-radiation detector

Frequency-programmed electron-capture detector