Mark A. Staggs

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McAlester, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotating bonded valve assembly
- Patent number 7,546,849
- Issue date Jun 16, 2009
- National-Oilwell Varco, L.P.
- Mark A. Staggs
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Hollow ball valve assembly
- Patent number 7,350,534
- Issue date Apr 1, 2008
- National-Oilwell Varco, L.P.
- Andrew Dale Riley
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hydraulic retention system for reciprocating pump cylinder liner
- Patent number 6,588,318
- Issue date Jul 8, 2003
- National-Oilwell, L.P.
- James C. Aday
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Replaceable mud pump piston seal
- Patent number 5,960,700
- Issue date Oct 5, 1999
- National-Oilwell, L.P.
- Mark Alan Staggs
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
DURABLE VALVES FOR DISPLACEMENT PUMPS
- Publication number 20230383743
- Publication date Nov 30, 2023
- National-Oilwell Varco, L.P.
- William Bryce Brock
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
ROTATING BONDED VALVE ASSEMBLY
- Publication number 20070039652
- Publication date Feb 22, 2007
- National Oilwell, L.P.
- Mark A. Staggs
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
HOLLOW BALL VALVE ASSEMBLY
- Publication number 20060180209
- Publication date Aug 17, 2006
- National Oilwell, L.P.
- Andrew Dale Riley
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hydraulic retention system for reciprocating pump cylinder liner
- Publication number 20020124720
- Publication date Sep 12, 2002
- James C. Aday
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...