Ross Ouwinga

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Grand Rapids, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Programmable spectrophotometer using a data memory for storing a se...
- Patent number 5,400,138
- Issue date Mar 21, 1995
- X-Rite, Incorporated
- Steven H. Peterson
- G01 - MEASURING TESTING
Information Patent Grant
Scanning densitometer
- Patent number 5,073,028
- Issue date Dec 17, 1991
- X-Rite, Incorporated
- David R. Bowden
- G01 - MEASURING TESTING
Information Patent Grant
Price setting and display system for multiple unit merchandising ma...
- Patent number 4,677,777
- Issue date Jul 7, 1987
- Rowe International, Inc.
- David Hoffman
- G07 - CHECKING-DEVICES