Frank O'Brien

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St. Louis, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Ceramic proppants
- Patent number 9,434,873
- Issue date Sep 6, 2016
- Shamrock Group
- Frank O'Brien
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Ceramic proppants
- Patent number 8,722,590
- Issue date May 13, 2014
- Shamrock Group
- Frank O'Brien
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
CERAMIC PROPPANTS
- Publication number 20150068745
- Publication date Mar 12, 2015
- Frank O'Brien
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CERAMIC PROPPANTS
- Publication number 20130255945
- Publication date Oct 3, 2013
- Frank O'Brien
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...