David D. Friese

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Antioch, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Fluorination with hydrogen fluoride
- Patent number 4,999,432
- Issue date Mar 12, 1991
- DowElanco
- David D. Friese
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Purification of sulfuryl fluroide by selective adsorption
- Patent number 4,950,464
- Issue date Aug 21, 1990
- The Dow Chemical Company
- George S. Fujioka
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Removal of ferric chloride from halopyridines
- Patent number 4,649,201
- Issue date Mar 10, 1987
- The Dow Chemical Company
- David D. Friese
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydrogen fluoride recovery process
- Patent number 4,629,610
- Issue date Dec 16, 1986
- Dow Chemical Co.
- David D. Friese
- C01 - INORGANIC CHEMISTRY