Inventor

JOHNSON MARK O

US3 patents

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

JOHNSON MARK O

2 patents

US8307898B2Nov 13, 2012

Method and apparatus for cementing a liner in a borehole using a tubular member having an obstruction

JOHNSON MARK O2 citations57

US8720559B2May 13, 2014

Cementing method and apparatus for use with running string having an obstruction

JOHNSON MARK O3 citations55

ATLANTIC RICHFIELD CO

1 patent

US5988278ANov 23, 1999

Using a horizontal circular wellbore to improve oil recovery

ATLANTIC RICHFIELD CO42 citations86