Inventor

BRIGGS GARY MARSHALL

US4 patents

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

SUNSTONE TECH LLC

2 patents

US9845645B2Dec 19, 2017

Tapered spline connection for drill pipe, casing, and tubing

SUNSTONE TECH LLC17 citations90

US10066446B2Sep 4, 2018

Tapered spline connection for drill pipe, casing, and tubing

SUNSTONE TECH LLC3 citations71

HUGHES WILLIAM JAMES

2 patents

US7373995B2May 20, 2008

Method and apparatus for drilling curved boreholes

HUGHES WILLIAM JAMES29 citations89

US8739861B2Jun 3, 2014

Electrical wiring for drill pipe, casing, and tubing

HUGHES WILLIAM JAMES13 citations82