Inventor
FEHR JAMES
CA11 patents
⚠️ This page may combine multiple inventors who share the name “FEHR JAMES”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALLIBURTON ENERGY SERV INC
3 patentsUS6158513ADec 12, 2000
Multiple string completion apparatus and method
HALLIBURTON ENERGY SERV INC74 citations94
US6290002B1Sep 18, 2001
Pneumatic hammer drilling assembly for use in directional drilling
HALLIBURTON ENERGY SERV INC35 citations91
US6202762B1Mar 20, 2001
Flow restrictor valve for a downhole drilling assembly
HALLIBURTON ENERGY SERV INC35 citations91
THEMIG DANIEL JON
3 patentsPACKERS PLUS ENERGY SERV INC
3 patentsUS10273781B2Apr 30, 2019
Stage tool for wellbore cementing
PACKERS PLUS ENERGY SERV INC1 citations72
US9650868B2May 16, 2017
Stage tool for wellbore cementing
PACKERS PLUS ENERGY SERV INC1 citations62
US9932797B2Apr 3, 2018
Plug retainer and method for wellbore fluid treatment
PACKERS PLUS ENERGY SERV INC0 citations50