Donald J. Weintritt

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Lafayette, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making graphite-coated particulate materials
- Patent number 7,666,469
- Issue date Feb 23, 2010
- Superior Graphite Co.
- Donald J. Weintritt
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Graphite-coated particulate materials
- Patent number 7,402,338
- Issue date Jul 22, 2008
- Superior Graphite Co.
- Donald J. Weintritt
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Drilling fluid loss prevention and lubrication additive
- Patent number 5,826,669
- Issue date Oct 27, 1998
- Superior Graphite Co.
- Peter L. Zaleski
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DRILLING FLUID LUBRICANT AND METHOD OF USE
- Publication number 20090075847
- Publication date Mar 19, 2009
- Frank A. Wawrzos
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHOD OF MAKING GRAPHITE-COATED PARTICULATE MATERIALS
- Publication number 20080248308
- Publication date Oct 9, 2008
- Donald J. Weintritt
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Graphite coating of particulate materials
- Publication number 20070054121
- Publication date Mar 8, 2007
- Donald J. Weintritt
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL