Richard A. Todd

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Powell, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Pulsed helium ionization detection system
- Patent number 4,705,947
- Issue date Nov 10, 1987
- The United States of America as represented by the United States Department o...
- Roswitha S. Ramsey
- G01 - MEASURING TESTING
Information Patent Grant
Closed-loop pulsed helium ionization detector
- Patent number 4,705,948
- Issue date Nov 10, 1987
- The United States of America as represented by the United States Department o...
- Roswitha S. Ramsey
- G01 - MEASURING TESTING
Information Patent Grant
Compensated count-rate circuit for radiation survey meter
- Patent number 4,292,539
- Issue date Sep 29, 1981
- The United States of America as represented by the United States Department o...
- Richard A. Todd
- G01 - MEASURING TESTING