Ralph F. Cohn

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Worcester, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Non-invasive, high resolution detection of electrical currents and...
- Patent number 5,126,654
- Issue date Jun 30, 1992
- New York Gas Group
- John C. Murphy
- G01 - MEASURING TESTING
Information Patent Grant
Non-invasive, high resolution detection of electrical currents and...
- Patent number 5,087,873
- Issue date Feb 11, 1992
- New York Gas Group
- John C. Murphy
- G01 - MEASURING TESTING
Information Patent Grant
Dynamic imaging microellipsometry
- Patent number 5,076,696
- Issue date Dec 31, 1991
- The Johns Hopkins University
- Ralph F. Cohn
- G01 - MEASURING TESTING