Roger STARK

Follow

Person

Jefferson Hills, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Valve seats and valve assemblies for fluid end applications
- Patent number 11,156,221
- Issue date Oct 26, 2021
- Kennametal Inc.
- Roger M. Stark
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Valve seats and valve assemblies for fluid end applications
- Patent number 10,954,938
- Issue date Mar 23, 2021
- Kennametal Inc.
- Roger M. Stark
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Valve seats and valve assemblies for fluid end applications
- Patent number 10,851,775
- Issue date Dec 1, 2020
- Kennametal Inc.
- Roger M. Stark
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Thin-walled earth boring tools and methods of making the same
- Patent number 10,662,716
- Issue date May 26, 2020
- Kennametal Inc.
- Paul D. Prichard
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Valve seats and valve assemblies for fluid end applications
- Patent number 10,344,757
- Issue date Jul 9, 2019
- Kennametal Inc.
- Roger M. Stark
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
VALVE SEATS AND VALVE ASSEMBLIES FOR FLUID END APPLICATIONS
- Publication number 20210062805
- Publication date Mar 4, 2021
- Kennametal Inc.
- Roger M. Stark
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
VALVE SEATS AND VALVE ASSEMBLIES FOR FLUID END APPLICATIONS
- Publication number 20190264682
- Publication date Aug 29, 2019
- Kennametal Inc.
- Roger M. Stark
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
VALVE SEATS AND VALVE ASSEMBLIES FOR FLUID END APPLICATIONS
- Publication number 20190226475
- Publication date Jul 25, 2019
- Kennametal Inc.
- Roger M. STARK
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
VALVE SEATS AND VALVE ASSEMBLIES FOR FLUID END APPLICATIONS
- Publication number 20190226476
- Publication date Jul 25, 2019
- Kennametal Inc.
- Roger M. STARK
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
THIN-WALLED EARTH BORING TOOLS AND METHODS OF MAKING THE SAME
- Publication number 20190106941
- Publication date Apr 11, 2019
- Kennametal Inc.
- Paul D. PRICHARD
- B22 - CASTING POWDER METALLURGY