Inventor
MATZNER MARK D
US25 patents
⚠️ This page may combine multiple inventors who share the name “MATZNER MARK D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPM FLOW CONTROL INC
15 patentsUS7364412B2Apr 29, 2008
System, method, and apparatus for valve stop assembly in a reciprocating pump
SPM FLOW CONTROL INC85 citations97
US6945569B1Sep 20, 2005
Enhanced durability hammer union
SPM FLOW CONTROL INC76 citations96
USD706397SJun 3, 2014
Portion of fluid end
SPM FLOW CONTROL INC14 citations92
USD641382SJul 12, 2011
Stay rod for reciprocating pump
SPM FLOW CONTROL INC31 citations92
US7549681B1Jun 23, 2009
Flowline clamp connector
SPM FLOW CONTROL INC42 citations92
US7451959B2Nov 18, 2008
Plug valve having a seal boss
SPM FLOW CONTROL INC29 citations92
US7404704B2Jul 29, 2008
Manifold assembly for reciprocating pump
SPM FLOW CONTROL INC41 citations92
US7219594B2May 22, 2007
Coolant system for piston and liner of reciprocating pumps
SPM FLOW CONTROL INC26 citations92
US7204525B2Apr 17, 2007
Flowline clamp connector
SPM FLOW CONTROL INC46 citations92
US6978799B2Dec 27, 2005
Emergency pressure relief valve with enhanced reset
SPM FLOW CONTROL INC32 citations92
US6209561B1Apr 3, 2001
Emergency pressure relief valve
SPM FLOW CONTROL INC31 citations89
US6481457B2Nov 19, 2002
Safety restraint assembly for high pressure flow line
SPM FLOW CONTROL INC26 citations87
US7823265B2Nov 2, 2010
Flowline torque arm assembly
SPM FLOW CONTROL INC18 citations77
US7096718B2Aug 29, 2006
Pressure testing apparatus
SPM FLOW CONTROL INC12 citations77
US9964245B2May 8, 2018
Swivel joint with uniform ball bearing requirements
SPM FLOW CONTROL INC0 citations51