John W. Wen

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Baton Rouge, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
Removal of aluminum contamination during production of phosphoric acid
- Patent number 5,236,679
- Issue date Aug 17, 1993
- Freeport-McMoRan Resource Partners
- John W. Wen
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Sulfur recovery process
- Patent number 4,722,832
- Issue date Feb 2, 1988
- Freeport-McMoRan Resource Partners
- Charles W. Weston
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for producing wet process phosphoric acid from phosphate ro...
- Patent number 4,485,078
- Issue date Nov 27, 1984
- Agrico Chemical Company
- Charles W. Weston
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Purified monoammonium phosphate process
- Patent number 4,325,927
- Issue date Apr 20, 1982
- Agrico Chemical Company
- Charles W. Weston
- C01 - INORGANIC CHEMISTRY