Patent Assignment
Reel/Frame 029131/0638
Merger
Recorded: 2012-10-15
Pages: 11
Assignor
STINGER WELLHEAD PROTECTION, INCORPORATED
Executed: 2011-12-31
Assignee
OIL STATES ENERGY SERVICES, L.L.C.
333 CLAY STREET, HOUSTON, TEXAS, 77002
Covered Properties
(39)
Apparatus for Controlling a Tool Having a Mandrel That Must Be Stroked into or Out of a Well
Fracturing Head with Replaceable Inserts for Improved Wear Resistance and Method of Refurbishing Same
Cup Tool, Cup Tool Cup and Method of Using the Cup Tool
Gate Valve with Replaceable Inserts
Blast Joint Swivel for Wellhead Isolation Tool and Method of Using Same
Slip Spool Assembly and Method of Using Same
High-Pressure Threaded Union with Metal-to-Metal Seal, and Metal Ring Gasket for Same
Cup Tool for a High-Pressure Mandrel and Method of Using Same
Method of Subsurface Lubrication to Facilitate Well Completion, Re-Completion and Workover
Cup Tool with Three-Part Packoff for a High Pressure Mandrel
Multi-Lock Adapters for Independent Screwed Wellheads and Methods of Using Same
Two-Part Back Cap for a Plug Valve and Plug Valves Incorporating Same
Casing Mandrel with Well Stimulation Tool and Tubing Head Spool for Use with the Casing Mandrel
Subsurface Lubricator and Method of Use
Subsurface Lubricator and Method of Use
Drilling Flange and Independent Screwed Wellhead with Metal-to-Metal Seal and Method of Use
Configurable Wellhead System with Permanent Fracturing Spool and Method of Use
Wellhead and Control Stack Pressure Test Plug Tool
System and Method for Low-Pressure Well Completion
Fracturing Head with Replaceable Inserts for Improved Wear Resistance and Method of Refurbishing Same
Cup Tool, Cup Tool Cup and Method of Using the Cup Tool
Method of Refurbishing a High-Pressure Plug Valve
Apparatus for Controlling a Tool Having a Mandrel That Must Be Stroked into or Out of a Well
Fixed-Point Packoff Element with Primary Seal Test Capability
Casing Mandrel for Facilitating Well Completion, Re-Completion or Workover
Multi-Lock Adapters for Independent Screwed Wellheads and Methods of Using Same
Snubber Spool with Detachable Base Plates
Gate Valve with Replaceable Inserts and Method of Refurbishing Same
Hybrid Wellhead System and Method of Use
Drilling Flange and Independent Screwed Wellhead with Metal-to-Metal Seal and Method of Use
Slip Spool Assembly and Method of Using Same
Wellhead and Control Stack Pressure Test Plug Tool
Multi-Lock Adapters for Independent Screwed Wellheads and Methods of Using Same
Cup Tool with Three-Part Packoff for a High Pressure Mandrel
Drilling Flange and Independent Screwed Wellhead with Metal-to-Metal Seal and Method of Use
High-Pressure Threaded Union with Metal-to-Metal Seal, and Metal Ring Gasket for Same
Hybrid Wellhead System and Method of Use
Two-Part Back Cap for a Plug Valve and Plug Valves Incorporating Same
Two-Part Back Cap for a Plug Valve and Plug Valves Incorporating Same
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 24, 2005
From: DALLAS, L MURRAY; MCGUIRE, BOB
To: HWCES INTERNATIONAL, C/O OIL STATES INTERNATIONAL, INC.
Reel/Frame 016713/0171 →
Assignment of Assignor's Interest
Jun 24, 2005
From: DALLAS, L. MURRAY
To: HWCES INTERNATIONAL
Reel/Frame 016712/0677 →
Assignment of Assignor's Interest
Jul 14, 2005
From: DALLAS, L. MURRAY; MCGUIRE, BOB; ARTHERHOLT, DANNY LEE
To: HWCES INTERNATIONAL
Reel/Frame 016781/0958 →
Assignment of Assignor's Interest
Jul 15, 2005
From: MCGUIRE, BOB; ARTHERHOLT, DANNY LEE
To: HWCES INTERNATIONAL
Reel/Frame 016781/0817 →
Assignment of Assignor's Interest
Mar 9, 2006
From: HWCES INTERNATIONAL
To: HWC ENERGY SERVICES, INC.
Reel/Frame 017636/0559 →
Assignment of Assignor's Interest
Apr 4, 2006
From: DALLAS, L. MURRAY
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 017764/0243 →
Assignment of Assignor's Interest
Apr 5, 2006
From: ARTHERHOLT, DANNY LEE
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 017738/0327 →
Assignment of Assignor's Interest
Apr 25, 2006
From: MCGUIRE, BOB; DALLAS, L. MURRAY
To: HWCES INTERNATIONAL
Reel/Frame 017817/0975 →
Assignment of Assignor's Interest
Apr 25, 2006
From: HWCES INTERNATIONAL
To: HWC ENERGY SERVICES, INC.
Reel/Frame 017817/0925 →
Assignment of Assignor's Interest
May 9, 2006
From: ARTHERTHOLT, DANNY LEE
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 017879/0176 →
Change of Name
Jun 2, 2006
From: HWC ENERGY SERVICE, INC.
To: OIL STATES ENERGY SERVICES, INC
Reel/Frame 017957/0310 →
Assignment of Assignor's Interest
Jun 19, 2006
From: DALLAS, L. MURRAY; MCGUIRE, BOB
To: HWCES INTERNATIONAL
Reel/Frame 018011/0547 →
Assignment of Assignor's Interest
Jun 19, 2006
From: HWCES INTERNATIONAL
To: HWC ENERGY SERVICES, INC.
Reel/Frame 018011/0577 →
Change of Name
Jun 19, 2006
From: HWC ENERGY SERVICES, INC.
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 018014/0107 →
Assignment of Assignor's Interest
Jul 20, 2006
From: MCGUIRE, BOB; DALLAS, L. MURRAY; ROSENHAUCH, IRWIN
To: HWCES INTERNATIONAL
Reel/Frame 017979/0059 →
Assignment of Assignor's Interest
Sep 28, 2006
From: DALLAS, L. MURRAY
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 018376/0030 →
Assignment of Assignor's Interest
Sep 28, 2006
From: DALLAS, L. MURRAY
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 018371/0473 →
Assignment of Assignor's Interest
Dec 5, 2006
From: HWCES INTERNATIONAL
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 018582/0886 →
Assignment of Assignor's Interest
Dec 19, 2006
From: DALLAS, L. MURRAY
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 018710/0972 →
Assignment of Assignor's Interest
Dec 20, 2006
From: HWCES INTERNATIONAL
To: HWC ENERGY SERVICES, INC.
Reel/Frame 018735/0183 →
Assignment of Assignor's Interest
Dec 20, 2006
From: HWC ENERGY SERVICES, INC.
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 018735/0200 →
Assignment of Assignor's Interest
Dec 20, 2006
From: DALLAS, L. MURRAY; MCGUIRE, BOB
To: HWCES INTERNATIONAL
Reel/Frame 018735/0208 →
Assignment of Assignor's Interest
Dec 21, 2006
From: OIL STATES ENERGY SERVICES, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 018767/0230 →
Assignment of Assignor's Interest
Jan 25, 2007
From: OIL STATES ENERGY SERVICES, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 018835/0459 →
Corrective Assignment to Correct the Incorrect Serial Number from 11/445,978 to 11/455,978. Document Previously Recorded at Reel 018767 Frame 0230.
May 8, 2007
From: OIL STATES ENERGY SERVICES, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 019308/0967 →