Donald A. Dahlstrom

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Salt Lake City, UT, US

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Patents Grantslast 30 patents

Information Patent Grant
Flashed-down residue treatment including filtering and solvent repu...
- Patent number 4,342,638
- Issue date Aug 3, 1982
- Envirotech Corporation
- Donald A. Dahlstrom
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Combustion gas scrubbing system
- Patent number 4,147,756
- Issue date Apr 3, 1979
- Envirotech Corporation
- Donald A. Dahlstrom
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Sulfur dioxide scrubbing system
- Patent number 3,989,464
- Issue date Nov 2, 1976
- Envirotech Corporation
- Donald A. Dahlstrom
- C01 - INORGANIC CHEMISTRY