Inventor · disambiguated record
Mark D. Matzner
Also filed as: MATZNER MARK D
25 granted patents·8 pending applications·900 citations·filing 1992–2014
97Inventor score
Top patents by PatentIndex Score
33 records- 0196US7549681B1Flowline clamp connectorSPM FLOW CONTROL INC·Filed 2006·Granted Jun 23, 2009·42 cites·17 claims
- 0295US8376723B2Connecting rod without wrist pinWEIR SPM INC·Filed 2010·Granted Feb 19, 2013·56 cites·10 claims
- 0395US7451959B2Plug valve having a seal bossSPM FLOW CONTROL INC·Filed 2006·Granted Nov 18, 2008·29 cites·17 claims
- 0495US7364412B2System, method, and apparatus for valve stop assembly in a reciprocating pumpSPM FLOW CONTROL INC·Filed 2004·Granted Apr 29, 2008·85 cites·18 claims
- 0595US6945569B1Enhanced durability hammer unionSPM FLOW CONTROL INC·Filed 2004·Granted Sep 20, 2005·76 cites·13 claims
- 0694US8402880B2Packing nut lock and access bore cover locking assemblyPATEL PANKAJ H·Filed 2009·Granted Mar 26, 2013·48 cites·19 claims
- 0791US7404704B2Manifold assembly for reciprocating pumpSPM FLOW CONTROL INC·Filed 2004·Granted Jul 29, 2008·41 cites·20 claims
- 0891US7204525B2Flowline clamp connectorSPM FLOW CONTROL INC·Filed 2004·Granted Apr 17, 2007·46 cites·20 claims
- 0990US8870233B2Swivel joint with uniform ball bearing requirementsMATZNER MARK D·Filed 2008·Granted Oct 28, 2014·15 cites·1 claims
- 1089USD687125SFluid endHAWES JOHN E·Filed 2011·Granted Jul 30, 2013·45 cites·1 claims
- 1189US8162631B2Floating pinion bearing for a reciprocating pumpPATEL PANKAJ H·Filed 2008·Granted Apr 24, 2012·19 cites·14 claims
- 1288US6298882B1Explosion resistant blanket for flow lineSPM INC·Filed 2000·Granted Oct 9, 2001·47 cites·12 claims
- 1385US8695627B2Stand for pressure relief valveKUGELEV VLADIMIR·Filed 2010·Granted Apr 15, 2014·14 cites·20 claims
- 1485US7219594B2Coolant system for piston and liner of reciprocating pumpsSPM FLOW CONTROL INC·Filed 2004·Granted May 22, 2007·26 cites·20 claims
- 1584US6209561B1Emergency pressure relief valveSPM FLOW CONTROL INC·Filed 2000·Granted Apr 3, 2001·31 cites·19 claims
- 1683USD641382SStay rod for reciprocating pumpSPM FLOW CONTROL INC·Filed 2010·Granted Jul 12, 2011·31 cites·1 claims
- 1782US7823265B2Flowline torque arm assemblySPM FLOW CONTROL INC·Filed 2006·Granted Nov 2, 2010·18 cites·15 claims
- 1881US5689862ASafety clampSPM INC·Filed 1996·Granted Nov 25, 1997·52 cites·14 claims
- 1981US5246355AWell service pumping assemblySPECIAL PROJECTS MANUFACTURING·Filed 1992·Granted Sep 21, 1993·63 cites·8 claims
- 2077US6481457B2Safety restraint assembly for high pressure flow lineSPM FLOW CONTROL INC·Filed 2001·Granted Nov 19, 2002·26 cites·25 claims
- 2174US6978799B2Emergency pressure relief valve with enhanced resetSPM FLOW CONTROL INC·Filed 2003·Granted Dec 27, 2005·32 cites·18 claims
- 2273US5823093ALiner assembly with a fluid end cylinderSPM INC·Filed 1997·Granted Oct 20, 1998·32 cites·20 claims
- 2371USD706397SPortion of fluid endSPM FLOW CONTROL INC·Filed 2013·Granted Jun 3, 2014·14 cites·1 claims
- 2463US7096718B2Pressure testing apparatusSPM FLOW CONTROL INC·Filed 2004·Granted Aug 29, 2006·12 cites·9 claims
- 2559US2013233165A1Monitoring system for reciprocating pumpsSPM FLOW CONTROL INC·Filed 2013·Application pending·0 cites
- 2656US9964245B2Swivel joint with uniform ball bearing requirementsSPM FLOW CONTROL INC·Filed 2014·Granted May 8, 2018·0 cites·20 claims
- 2754US2010158727A1Suction Port Lock Nut With Stub Buttress ThreadsWEIR SPM INC·Filed 2009·Application pending·0 cites
- 2849US2010154894A1Hydraulic Unloading ValveWEIR SPM INC·Filed 2009·Application pending·0 cites
- 2945US2004213677A1Monitoring system for reciprocating pumpsFiled 2004·Application pending·0 cites
- 3042US2004219040A1Direct drive reciprocating pumpFiled 2004·Application pending·0 cites
- 3140US2010147866A1Ball InjectorWEIR SPM INC·Filed 2009·Application pending·0 cites
- 3238US2010260631A1Multi-piece connecting rodWEIR SPM INC·Filed 2010·Application pending·0 cites
- 3336US2010242720A1Bimetallic CrossheadWEIR SPM INC·Filed 2010·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Mark D. Matzner files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →