Donald C. Rulf

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Midland, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Permeation measurement device
- Patent number 5,131,261
- Issue date Jul 21, 1992
- The Dow Chemical Company
- James C. Tou
- G01 - MEASURING TESTING
Information Patent Grant
Permeation measurement device
- Patent number 4,944,180
- Issue date Jul 31, 1990
- The Dow Chemical Company
- James C. Tou
- G01 - MEASURING TESTING
Information Patent Grant
Self-diagnostic gel permeation/size exclusion chromatograph
- Patent number 4,674,323
- Issue date Jun 23, 1987
- The Dow Chemical Company
- Donald C. Rulf
- G01 - MEASURING TESTING