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Robert Youngman
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Phoenix, AZ, US
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last 30 patents
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Patent Grant
Proppant composition for gas and oil well fracturing
Patent number
6,372,678
Issue date
Apr 16, 2002
Fairmount Minerals, LTD
Robert Youngman
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
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Patent Application
IMPLANTABLE MEDICAL DEVICE HOUSING REINFORCEMENT
Publication number
20080186691
Publication date
Aug 7, 2008
John C. Mertz
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Application
PROPPANT COMPOSITION FOR GAS AND OIL WELL L FRACTURING
Publication number
20020058581
Publication date
May 16, 2002
Fairmount Minerals, Ltd
Robert Youngman
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...