Donald H. De Vries

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Concord, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and composition for enhancing the insecticidal activity of c...
- Patent number 4,892,732
- Issue date Jan 9, 1990
- The Dow Chemical Company
- Doris L. Parconagian
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method and composition for enhancing the insecticidal activity of c...
- Patent number 4,777,164
- Issue date Oct 11, 1988
- The Dow Chemical Company
- Donald H. DeVries
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Insecticidal phosphorus derivatives of 6-cycloalkyl-4-pyrimidinols
- Patent number 4,588,711
- Issue date May 13, 1986
- The Dow Chemical Company
- Walter Reifschneider
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method and composition for enhancing the insecticidal activity of c...
- Patent number 4,489,068
- Issue date Dec 18, 1984
- The Dow Chemical Company
- Donald H. De Vries
- C07 - ORGANIC CHEMISTRY