Stark; Roger M.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Stark; Roger M..The latest application filed is for "valve seats and valve assemblies for fluid end applications".

Company Profile

7.4.5

Stark; Roger M. - Jefferson Hills PA
Stark; Roger M. - Traverse City MI

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Valve seats and valve assemblies for fluid end applications Grant 11,156,221 - Stark , et al. October 26, 2	2021-10-26
Valve seats and valve assemblies for fluid end applications Grant 10,954,938 - Stark , et al. March 23, 2	2021-03-23
Valve Seats And Valve Assemblies For Fluid End Applications App 20210062805 - STARK; Roger M. ; et al.	2021-03-04
Valve seats and valve assemblies for fluid end applications Grant 10,851,775 - Stark , et al. December 1, 2	2020-12-01
Valve Seats And Valve Assemblies For Fluid End Applications App 20190264682 - Stark; Roger M. ; et al.	2019-08-29
Valve Seats And Valve Assemblies For Fluid End Applications App 20190226476 - STARK; Roger M. ; et al.	2019-07-25
Valve Seats And Valve Assemblies For Fluid End Applications App 20190226475 - STARK; Roger M. ; et al.	2019-07-25
Valve seats and valve assemblies for fluid end applications Grant 10,344,757 - Stark , et al. July 9, 2	2019-07-09
Method For Preparing Abrasive Waterjet Mixing Tubes App 20100088894 - Stark; Roger M. ; et al.	2010-04-15

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