Urs Christen

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Walnut Creek, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Control system for a chromatography apparatus oven door
- Patent number 4,072,846
- Issue date Feb 7, 1978
- Varian Associates, Inc.
- Urs Christen
- G05 - CONTROLLING REGULATING
Information Patent Grant
Current balancing circuit for use with chromatographic system detector
- Patent number 4,068,185
- Issue date Jan 10, 1978
- Varian Associates, Inc.
- Urs Christen
- G01 - MEASURING TESTING
Information Patent Grant
Automatic sampler apparatus
- Patent number 3,954,012
- Issue date May 4, 1976
- Varian Associates
- Urs Christen
- G01 - MEASURING TESTING