Charles J. Williams

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Carmel, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for detecting physical anomalies of U.S. currency
- Patent number 4,429,991
- Issue date Feb 7, 1984
- The Perkin-Elmer Corporation
- Charles J. Williams
- G07 - CHECKING-DEVICES
Information Patent Grant
Pathlength controller for a ring laser gyroscope
- Patent number 4,267,478
- Issue date May 12, 1981
- The Singer Company
- Bo H. G. Ljung
- G01 - MEASURING TESTING
Information Patent Grant
Method for determining quality of U.S. currency
- Patent number 4,255,057
- Issue date Mar 10, 1981
- The Perkin-Elmer Corporation
- Charles J. Williams
- G07 - CHECKING-DEVICES