Charles O. Roberts

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Edon, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Reduced icing valves and gas-driven motor and reciprocating pump in...
- Patent number 7,367,785
- Issue date May 6, 2008
- Ingersoll-Rand Company
- Charles Oakley Roberts
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Reduced icing valves and gas-driven motor and diaphragm pump incorp...
- Patent number 6,722,256
- Issue date Apr 20, 2004
- Ingersoll-Rand Company
- Charles O. Roberts
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Reduced icing valves and gas-driven motor and reciprocating pump in...
- Publication number 20050207911
- Publication date Sep 22, 2005
- Ingersoll-Rand Company
- Charles Oakley Roberts
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
REDUCED ICING VALVES AND GAS-DRIVEN MOTOR AND DIAPHRAGM PUMP INCORP...
- Publication number 20040050242
- Publication date Mar 18, 2004
- Ingersoll-Rand Company
- Charles O. Roberts
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...