David E. Sommervold

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Readout circuit in an automatic chemical testing apparatus
- Patent number 4,236,894
- Issue date Dec 2, 1980
- Hycel, Inc.
- David E. Sommervold
- G01 - MEASURING TESTING
Information Patent Grant
Calibration in an automatic chemical testing apparatus
- Patent number 4,043,756
- Issue date Aug 23, 1977
- Hycel, Inc.
- David E. Sommervold
- G01 - MEASURING TESTING