Inventor
ROBERTS WILLIAM M
US24 patents
⚠️ This page may combine multiple inventors who share the name “ROBERTS WILLIAM M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
11 patentsUS7980300B2Jul 19, 2011
Drillable bridge plug
SMITH INTERNATIONAL130 citations98
US7424909B2Sep 16, 2008
Drillable bridge plug
SMITH INTERNATIONAL60 citations97
US7810558B2Oct 12, 2010
Drillable bridge plug
SMITH INTERNATIONAL48 citations96
US7455118B2Nov 25, 2008
Secondary lock for a downhole tool
SMITH INTERNATIONAL31 citations92
US6564871B1May 20, 2003
High pressure permanent packer
SMITH INTERNATIONAL31 citations92
US6164377ADec 26, 2000
Downhole packer system
SMITH INTERNATIONAL23 citations92
US8047280B2Nov 1, 2011
Drillable bridge plug
SMITH INTERNATIONAL19 citations91
US7665516B2Feb 23, 2010
Permanent anchoring device
SMITH INTERNATIONAL18 citations82
US7325631B2Feb 5, 2008
Mill and pump-off sub
SMITH INTERNATIONAL12 citations77
US6305474B1Oct 23, 2001
Scoop for use with an anchor system for supporting a whipstock
SMITH INTERNATIONAL14 citations66
US7216700B2May 15, 2007
Torsional resistant slip mechanism and method
SMITH INTERNATIONAL4 citations63
BAKER INT CORP
5 patentsUS4325434AApr 20, 1982
Tubing shut off valve
BAKER INT CORP59 citations96
US4234043ANov 18, 1980
Removable subsea test valve system for deep water
BAKER INT CORP75 citations96
US4325409AApr 20, 1982
Pilot valve for subsea test valve system for deep water
BAKER INT CORP39 citations92
US4210207AJul 1, 1980
Valve apparatus
BAKER INT CORP27 citations82
US4270606AJun 2, 1981
Apparatus for selective disengagement of a fluid transmission conduit and for control of fluid transmission from a well zone
BAKER INT CORP16 citations73