Donald E. Leonard

Person

Shepherd, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Solid-solid separations utilizing alkanol amines
- Patent number 5,244,155
- Issue date Sep 14, 1993
- The Dow Chemical Company
- Richard R. Klimpel
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Dialkylated aryl monosulfonate collectors useful in the flotation o...
- Patent number 5,173,176
- Issue date Dec 22, 1992
- The Dow Chemical Company
- Richard R. Klimpel
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Sulfonated and carboxylate collector compositions useful in the flo...
- Patent number 5,171,427
- Issue date Dec 15, 1992
- The Dow Chemical Company
- Richard R. Klimpel
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Alkanol amine grinding aids
- Patent number 5,131,600
- Issue date Jul 21, 1992
- The Dow Chemical Company
- Richard R. Klimpel
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Depression of the flotation of silica or siliceous gangue in minera...
- Patent number 5,057,209
- Issue date Oct 15, 1991
- The Dow Chemical Company
- Richard R. Klimpel
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Alkylated diaryl oxide monosulfonate collectors useful in the float...
- Patent number 5,015,367
- Issue date May 14, 1991
- The Dow Chemical Company
- Richard R. Klimpel
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...

Donald E. Leonard

Person

Patents Grantslast 30 patents

Solid-solid separations utilizing alkanol amines

Dialkylated aryl monosulfonate collectors useful in the flotation o...

Sulfonated and carboxylate collector compositions useful in the flo...

Alkanol amine grinding aids

Depression of the flotation of silica or siliceous gangue in minera...

Alkylated diaryl oxide monosulfonate collectors useful in the float...