Inventor

MCCASKILL JOHN WALTON

US4 patents

⚠️ This page may combine multiple inventors who share the name “MCCASKILL JOHN WALTON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EXPRO AMERICAS L P

2 patents

US7360611B2Apr 22, 2008

Flow system for a hydraulic choke solids strainer

EXPRO AMERICAS L P9 citations76

US7275606B1Oct 2, 2007

Solids strainer system for a hydraulic choke

EXPRO AMERICAS L P11 citations76

MCEVOY OILFIELD EQUIPMENT CO

1 patent

US4029294AJun 14, 1977

High pressure valve

MCEVOY OILFIELD EQUIPMENT CO60 citations91

POWER WELL SERVICES L P

1 patent

US7231932B2Jun 19, 2007

Apparatus and methods for servicing a hydraulic choke

POWER WELL SERVICES L P3 citations58