Inventor

JOHNSON JANICE R

US2 patents

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

BAKER HUGHES INC

1 patent

US7703538B2Apr 27, 2010

Access apparatus from a tubular into a downhole hydraulic control circuit and associated method

BAKER HUGHES INC6 citations58

SCHRANTZ ROBERT D

1 patent

US4062568ADec 13, 1977

Method and means for transcribing medical test data

SCHRANTZ ROBERT D5 citations44