Robert W. Ramsey Jr.

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Frederick, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Small volume ion chamber
- Patent number D327121
- Issue date Jun 16, 1992
- Rad Elec, Inc.
- Robert W. Ramsey
- D23 - Environmental heating and cooling
Information Patent Grant
Electret ion chamber for radon monitoring
- Patent number 4,992,658
- Issue date Feb 12, 1991
- Rad Elec Inc.
- Robert W. Ramsey
- G01 - MEASURING TESTING