Samuel H. Hawthorne

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Brampton, Ontario, CA

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Patents Grantslast 30 patents

Information Patent Grant
Gas chromatographic method
- Patent number 5,904,749
- Issue date May 18, 1999
- Christopher Huk-Shi Chen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Low temperature preparative gas chromatography apparatus
- Patent number 4,780,116
- Issue date Oct 25, 1988
- Christopher H. Cheh
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Gas chromatographic method for separating hydrogen isotopes
- Patent number 4,732,581
- Issue date Mar 22, 1988
- Christopher H. Cheh
- C01 - INORGANIC CHEMISTRY