George B. Parrent Jr.

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Chelmsford, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Analyzing apparatus and method for analysis of liquid samples
- Patent number 4,958,295
- Issue date Sep 18, 1990
- Hercules Incorporated
- David L. Davidson
- G01 - MEASURING TESTING
Information Patent Grant
Device and process for mixing a sample and a diluent
- Patent number 4,920,060
- Issue date Apr 24, 1990
- Hercules Incorporated
- George B. Parrent
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for sensing multiple parameters of sheet material
- Patent number 4,789,820
- Issue date Dec 6, 1988
- Hercules Incorporated
- George B. Parrent
- G01 - MEASURING TESTING