John T. Higgins

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Trail, CA

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Patents Grantslast 30 patents

Information Patent Grant
Sulfur prilling
- Patent number 4,389,356
- Issue date Jun 21, 1983
- Cominco Ltd.
- John T. Higgins
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Manufacture of urea sulfur fertilizer
- Patent number 4,330,319
- Issue date May 18, 1982
- Cominco Ltd.
- Stewart G. Bexton
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Process for granulation of sulfur
- Patent number 4,234,318
- Issue date Nov 18, 1980
- Cominco Ltd.
- John T. Higgins
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process and apparatus for cleaning prilling tower effluent
- Patent number 4,153,431
- Issue date May 8, 1979
- Cominco Ltd.
- John T. Higgins
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL