Robert C. Kessler

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St. Louis County, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Optical interface coupler and system for photometric analysis
- Patent number 5,408,313
- Issue date Apr 18, 1995
- Custom Sample Systems, Inc.
- Michael J. Ponstingl
- G01 - MEASURING TESTING
Information Patent Grant
Fiber-optic probe for absorbance and turbidity measurement
- Patent number 5,241,368
- Issue date Aug 31, 1993
- Custom Sample Systems, Inc.
- Michael J. Ponstingl
- G01 - MEASURING TESTING
Information Patent Grant
Optical and electronically compared absorptiometer
- Patent number 4,637,730
- Issue date Jan 20, 1987
- Custom Sample Systems, Inc.
- Michael J. Ponstingl
- G01 - MEASURING TESTING