Richard H. Johnson

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Ivoryton, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Induction motor control system
- Patent number 4,950,970
- Issue date Aug 21, 1990
- Chesebrough-Pond's Inc.
- Ray E. Davis
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Video inspection system
- Patent number 4,445,185
- Issue date Apr 24, 1984
- Chesebrough-Pond's Inc.
- Ray E. Davis
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital induction motor control system
- Patent number 4,361,792
- Issue date Nov 30, 1982
- Chesebrough-Pond's Inc.
- Ray E. Davis
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Video inspection system
- Patent number 4,344,146
- Issue date Aug 10, 1982
- Chesebrough-Pond's Inc.
- Ray E. Davis
- G06 - COMPUTING CALCULATING COUNTING