David R. Hassel

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Troy, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Mass determination device having counterbalanced normalized tempera...
- Patent number 6,080,939
- Issue date Jun 27, 2000
- Rupprecht & Pataschnick Company, Inc.
- David R. Hassel
- G01 - MEASURING TESTING
Information Patent Grant
Force compensator for inertial mass measurement instrument
- Patent number 5,488,203
- Issue date Jan 30, 1996
- Rupprecht & Patashnick Company, Inc.
- David R. Hassel
- G01 - MEASURING TESTING
Information Patent Grant
Decoupling suspension system for an oscillating element microbalance
- Patent number 4,696,181
- Issue date Sep 29, 1987
- Rupprecht & Patashnick Co., Inc.
- Georg Rupprecht
- G01 - MEASURING TESTING