Charles C. Helms

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Trumbull, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Instantaneous reading multichannel polychromatic spectrophotometer...
- Patent number 4,678,917
- Issue date Jul 7, 1987
- The Perkin-Elmer Corporation
- Charles C. Helms
- G01 - MEASURING TESTING
Information Patent Grant
Sample cell temperature stabilizer
- Patent number 4,598,765
- Issue date Jul 8, 1986
- The Perkin-Elmer Corporation
- John Atwood
- G01 - MEASURING TESTING
Information Patent Grant
Optical beam splitter
- Patent number 4,487,477
- Issue date Dec 11, 1984
- The Perkin-Elmer Corporation
- Charles C. Helms
- G02 - OPTICS
Information Patent Grant
Photodetector heat stabilizer
- Patent number 4,234,790
- Issue date Nov 18, 1980
- The Perkin-Elmer Corporation
- Charles F. deMey
- G01 - MEASURING TESTING
Information Patent Grant
L/C detector cell assembly
- Patent number 4,192,614
- Issue date Mar 11, 1980
- The Perkin-Elmer Corporation
- Charles F. deMey
- G01 - MEASURING TESTING