William H. Dennis

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Bartlesville, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Gas chromatography
- Patent number 4,553,985
- Issue date Nov 19, 1985
- Phillips Petroleum Company
- Robert W. Dahlgren
- G01 - MEASURING TESTING
Information Patent Grant
Air pollution detection
- Patent number 4,399,688
- Issue date Aug 23, 1983
- Phillips Phillips Petroleum
- William H. Dennis
- G01 - MEASURING TESTING
Information Patent Grant
Chromatographic analysis without calibration using dual detectors
- Patent number 4,254,656
- Issue date Mar 10, 1981
- Philips Petroleum Company
- Richard A. Sanford
- G01 - MEASURING TESTING