John R. Hellmann

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State College, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Proppants from mineralogical material
- Patent number 8,959,954
- Issue date Feb 24, 2015
- The Penn State Research Foundation
- Ryan P. Koseski
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Treatment of melt quenched aluminosilicate glass spheres for applic...
- Patent number 8,359,886
- Issue date Jan 29, 2013
- The Penn State Research Foundation
- Ryan P. Koseski
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Treatment of particles for improved performance as proppants
- Patent number 8,193,128
- Issue date Jun 5, 2012
- The Penn State Research Foundation
- John R. Hellmann
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Material having a controlled microstructure, core-shell macrostruct...
- Patent number 7,828,998
- Issue date Nov 9, 2010
- Carbo Ceramics, Inc.
- Walter G. Luscher
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
PROPPANTS FROM MINERALOGICAL MATERIAL
- Publication number 20130125586
- Publication date May 23, 2013
- The Penn State Research Foundation
- Ryan P. Koseski
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Treatment of particles for improved performance as proppants
- Publication number 20100326657
- Publication date Dec 30, 2010
- The Penn State Research Foundation
- John R. Hellmann
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
TREATMENT OF MELT QUENCHED ALUMINOSILICATE GLASS SPHERES FOR APPLIC...
- Publication number 20100068521
- Publication date Mar 18, 2010
- The Penn State Research Foundation
- Ryan P. Koseski
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
METHOD FOR PRODUCING PROPPANT USING A DOPANT
- Publication number 20090118145
- Publication date May 7, 2009
- CARBO Ceramics Inc.
- Brett Allen Wilson
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
MATERIAL HAVING A CONTROLLED MICROSTRUCTURE, CORE-SHELL MACROSTRUCT...
- Publication number 20080015103
- Publication date Jan 17, 2008
- The Penn State Research Foundation
- Walter G. Luscher
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES