Phillip W. Welch

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods of operating ball grinding mills
- Patent number 4,635,858
- Issue date Jan 13, 1987
- W. R. Grace & Co.
- Phillip W. Welch
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Grinding mill control system
- Patent number 4,586,146
- Issue date Apr 29, 1986
- W. R. Grace & Co.
- Robert F. Dumbeck
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Grinding mill monitoring instrumentation
- Patent number 4,404,640
- Issue date Sep 13, 1983
- W. R. Grace & Co.
- Robert F. Dumbeck
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...