Leo W. Beckstead

Person

Arvada, CO, US

People

Patents Grantslast 30 patents

Information Patent Grant
Purification of APT
- Patent number 4,963,336
- Issue date Oct 16, 1990
- Amax Inc.
- Leo W. Beckstead
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Chromium recovery process
- Patent number 4,917,726
- Issue date Apr 17, 1990
- Amax Inc.
- Eddie C. J. Chou
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Separation of nickel and cobalt from sulfate solutions by solvent e...
- Patent number 4,900,522
- Issue date Feb 13, 1990
- Amax Inc.
- Eddie C. Chou
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Production of hexagonal cadmium sulfide pigment
- Patent number 4,810,303
- Issue date Mar 7, 1989
- Amax Inc.
- Guy W. Lussiez
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Production of cobalt and nickel powder
- Patent number 4,761,177
- Issue date Aug 2, 1988
- Amax Inc.
- Eddie C. Chou
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for improving solvent extraction operation using two mixers
- Patent number 4,551,314
- Issue date Nov 5, 1985
- Amax Inc.
- Leo W. Beckstead
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Activated carbon adsorption of flotation reagents from tungsten sol...
- Patent number 4,504,448
- Issue date Mar 12, 1985
- Amax Inc.
- Dennis E. Voelker
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for recovering tungsten from MoS.sub.3 /WS.sub.3 precipitates
- Patent number 4,490,339
- Issue date Dec 25, 1984
- Amax Inc.
- Leo W. Beckstead
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Ammonium hydroxide stripping of tungsten from organic solvents
- Patent number 4,450,144
- Issue date May 22, 1984
- Amax Inc.
- John M. Laferty
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recovery of V.sub.2 O.sub.5 and nickel values from petroleum coke
- Patent number 4,443,415
- Issue date Apr 17, 1984
- Amax Inc.
- Paul B. Queneau
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Precipitation of synthetic scheelite
- Patent number 4,397,821
- Issue date Aug 9, 1983
- Amax Inc.
- Leo W. Beckstead
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Autoclave soda digestion of scheelite concentrates
- Patent number 4,351,808
- Issue date Sep 28, 1982
- Amax Inc.
- Leo W. Beckstead
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for digesting tungsten ores containing organic matter
- Patent number 4,342,728
- Issue date Aug 3, 1982
- Amax Inc.
- Paul B. Queneau
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for conditioning tungsten concentrates
- Patent number 4,338,287
- Issue date Jul 6, 1982
- Amax Inc.
- Robert F. Hogsett
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Solvent extraction of tungsten from aqueous tungstate solutions
- Patent number 4,328,190
- Issue date May 4, 1982
- Amax Inc.
- Leo W. Beckstead
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Autoclave soda digestion of scheelite concentrates with feedback co...
- Patent number 4,325,919
- Issue date Apr 20, 1982
- Amax Inc.
- Paul B. Queneau
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Combined autoclave soda digestion of wolframite and scheelite
- Patent number 4,320,096
- Issue date Mar 16, 1982
- Amax Inc.
- Paul B. Queneau
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Autoclave soda digestion of refractory scheelite concentrates
- Patent number 4,320,095
- Issue date Mar 16, 1982
- Amax Inc.
- Paul B. Queneau
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Autoclave tungstate upgrading of scheelite concentrates
- Patent number 4,313,914
- Issue date Feb 2, 1982
- Amax Inc.
- Dale K. Huggins
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Treatment of sodium tungstate leach liquor containing dissolved sil...
- Patent number 4,311,679
- Issue date Jan 19, 1982
- Amax Inc.
- Paul B. Queneau
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Separation of trace molybdenum from tungstate solutions
- Patent number 4,303,623
- Issue date Dec 1, 1981
- Amax Inc.
- Dale K. Huggins
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Chemical treatment of low-grade wolframite concentrate having high...
- Patent number 4,303,622
- Issue date Dec 1, 1981
- Amax Inc.
- Dale K. Huggins
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Leo W. Beckstead

Person

Patents Grantslast 30 patents

Purification of APT

Chromium recovery process

Separation of nickel and cobalt from sulfate solutions by solvent e...

Production of hexagonal cadmium sulfide pigment

Production of cobalt and nickel powder

Process for improving solvent extraction operation using two mixers

Activated carbon adsorption of flotation reagents from tungsten sol...

Process for recovering tungsten from MoS.sub.3 /WS.sub.3 precipitates

Ammonium hydroxide stripping of tungsten from organic solvents

Recovery of V.sub.2 O.sub.5 and nickel values from petroleum coke

Precipitation of synthetic scheelite

Autoclave soda digestion of scheelite concentrates

Process for digesting tungsten ores containing organic matter

Process for conditioning tungsten concentrates

Solvent extraction of tungsten from aqueous tungstate solutions

Autoclave soda digestion of scheelite concentrates with feedback co...

Combined autoclave soda digestion of wolframite and scheelite

Autoclave soda digestion of refractory scheelite concentrates

Autoclave tungstate upgrading of scheelite concentrates

Treatment of sodium tungstate leach liquor containing dissolved sil...

Separation of trace molybdenum from tungstate solutions

Chemical treatment of low-grade wolframite concentrate having high...