Inventor
JOHNSON DAVID O
US15 patents
⚠️ This page may combine multiple inventors who share the name “JOHNSON DAVID O”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALLIBURTON ENERGY SERV INC
5 patentsUS7398680B2Jul 15, 2008
Tracking fluid displacement along a wellbore using real time temperature measurements
HALLIBURTON ENERGY SERV INC44 citations94
US7779683B2Aug 24, 2010
Tracking fluid displacement along a wellbore using real time temperature measurements
HALLIBURTON ENERGY SERV INC18 citations90
US7637318B2Dec 29, 2009
Pressure communication assembly external to casing with connectivity to pressure source
HALLIBURTON ENERGY SERV INC17 citations82
US7730774B2Jun 8, 2010
Tracking fluid displacement along a wellbore using real time temperature measurements
HALLIBURTON ENERGY SERV INC11 citations80
US8028751B2Oct 4, 2011
Perforation method and apparatus
HALLIBURTON ENERGY SERV INC18 citations77
RINGGENBERG PAUL D
5 patentsUS8757891B2Jun 24, 2014
Fiber optic splice housing and integral dry mate connector system
RINGGENBERG PAUL D5 citations84
US8550721B2Oct 8, 2013
Fiber optic splice housing and integral dry mate connector system
RINGGENBERG PAUL D8 citations84
US8550722B2Oct 8, 2013
Fiber optic splice housing and integral dry mate connector system
RINGGENBERG PAUL D9 citations84
US8523454B2Sep 3, 2013
Fiber optic splice housing and integral dry mate connector system
RINGGENBERG PAUL D7 citations84
US8511907B2Aug 20, 2013
Fiber optic splice housing and integral dry mate connector system
RINGGENBERG PAUL D5 citations84