Edward A. Heinsen

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Cupertino, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Incrementing signal hold circuit for a clock/calculator
- Patent number 4,232,382
- Issue date Nov 4, 1980
- Hewlett-Packard Company
- Edward A. Heinsen
- G04 - HOROLOGY
Information Patent Grant
Interactive wristwatch calculator
- Patent number 4,158,285
- Issue date Jun 19, 1979
- Hewlett-Packard Company
- Edward A. Heinsen
- G06 - COMPUTING CALCULATING COUNTING