Cheryl Sak

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Lyndonville, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Refrigerated fluid sampling apparatus and method with variable volu...
- Patent number 5,587,926
- Issue date Dec 24, 1996
- American Sigma, Inc.
- Francis Chiu
- G02 - OPTICS
Information Patent Grant
Multi-function flow monitoring apparatus with multiple flow sensor...
- Patent number 5,506,791
- Issue date Apr 9, 1996
- American Sigma, Inc.
- William G. Hungerford
- G02 - OPTICS