Inventor

MEANS STEPHEN R

US3 patents

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

KEYSTONE DRILL SERVICES INC

2 patents

US7389833B2Jun 24, 2008

Multi-sectional percussive drill bit assembly

KEYSTONE DRILL SERVICES INC19 citations78

US7419017B2Sep 2, 2008

Multi-sectional percussive drill bit assembly

KEYSTONE DRILL SERVICES INC5 citations58

MEANS STEPHEN R

1 patent

US8330616B2Dec 11, 2012

Well test system to control well processes based on quantity measurements

MEANS STEPHEN R7 citations65