Patent Assignment
Reel/Frame 029138/0764
Merger
Recorded: 2012-10-16
Pages: 10
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
(24)
Retrievable Frac Mandrel and Well Control Stack to Facilitate Well Completion, Re-Completion or Workover and Method of Use
Multipart Frac Head with Replaceable Components
Retrievable Frac Mandrel and Well Control Stack to Facilitate Well Completion, Re-Completion or Workover and Method of Use
System and Method for Low-Pressure Well Completion
Threaded Union for Tubulars Used in High-Pressure Fluid Applications
Erosion Resistant Frac Head
Large Particulate Removal System
Patent:
42,772 →
Application:
12/101,080 →
Method of Use of a High Pressure Solid Removal System
Patent:
41,556 →
Application:
12/112,463 →
Gate Valve with Replaceable Inserts and Method of Refurbishing Same
Method of Subsurface Lubrication to Facilitate Well Completion, Re-Completion and Workover
Subsurface Lubricator and Method of Use
Configurable Wellhead System with Permanent Fracturing Spool and Method of Use
High-Pressure Threaded Union with Metal-to-Metal Seal, and Metal Ring Gasket for Same
Two-Part Back Cap for a Plug Valve and Plug Valves Incorporating Same
Multi-Lock Adapters for Independent Screwed Wellheads and Methods of Using Same
High-Pressure Plug Valve
Hybrid Wellhead System and Method of Use
Slip Spool Assembly and Method of Using Same
Erosion Resistant Frac Head
Multipart Frac Head with Replaceable Components
Hybrid Wellhead System and Method of Use
Fracturing Head with Replaceable Inserts for Improved Wear Resistance and Method of Refurbishing Same
Casing Mandrel for Facilitating Well Completion, Re-Completion or Workover
Multi-Lock Adapters for Independent Screwed Wellheads and Methods of Using Same
Related Assignments
(25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Oct 6, 2006
From: HICKIE, BARTON E.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 018409/0299 →
Assignment of Assignor's Interest
Apr 17, 2007
From: MCGUIRE, BOB; ARTHERHOLT, DANNY LEE
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 019274/0848 →
Assignment of Assignor's Interest
May 11, 2007
From: HICKIE, BARTON E.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 019369/0109 →
Change of Assignee Address
Jul 19, 2007
From: STINGER WELLHEAD PROTECTION, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 019588/0172 →
Assignment of Assignor's Interest
Aug 23, 2007
From: HWCES INTERNATIONAL
To: HWC ENERGY SERVICES, INC.
Reel/Frame 019793/0842 →
Assignment of Assignor's Interest
Aug 23, 2007
From: MCGUIRE, BOB; DALLAS, L. MURRAY
To: HWCES INTERNATIONAL
Reel/Frame 019793/0835 →
Change of Assignee Address
Aug 23, 2007
From: STINGER WELLHEAD PROTECTION, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 019793/0705 →
Change of Name
Aug 23, 2007
From: HWC ENERGY SERVICES, INC.
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 019793/0858 →
Assignment of Assignor's Interest
Aug 23, 2007
From: OIL STATES ENERGY SERVICES, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 019793/0911 →
Assignment of Assignor's Interest
Dec 19, 2007
From: MCGUIRE, BOB
To: STINGER WELLHEAD PROTECTION, INC
Reel/Frame 020328/0583 →
Assignment of Assignor's Interest
Mar 20, 2008
From: MCGUIRE, BOB
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 020682/0050 →
Assignment of Assignor's Interest
Dec 18, 2008
From: HWCES INTERNATIONAL
To: HWC ENERGY SERVICES, INC.
Reel/Frame 022002/0876 →
Assignment of Assignor's Interest
Dec 18, 2008
From: OIL STATES ENERGY SERVICES, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 022003/0082 →
Assignee Change of Address
Dec 18, 2008
From: STINGER WELLHEAD PROTECTION, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 022003/0226 →
Change of Name
Dec 18, 2008
From: HWC ENERGY SERVICES, INC.
To: OIL STATES ENERGY SERVICES INC.
Reel/Frame 022003/0008 →
Assignment of Assignor's Interest
Dec 18, 2008
From: DALLAS, L. MURRAY; MCGUIRE, BOB
To: HWCES INTERNATIONAL
Reel/Frame 022002/0762 →
Assignment of Assignor's Interest
Jul 21, 2009
From: OIL STATES ENERGY SERVICES, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 022981/0331 →
Change of Assignee Address
Jul 21, 2009
From: STINGER WELLHEAD PROTECTION, INC.
To: STINGER WELLHEAD PROTECTION
Reel/Frame 022985/0106 →
Change of Assignee Address
Jul 21, 2009
From: STINGER WELLHEAD PROTECTION, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 022981/0590 →
Assignment of Assignor's Interest
Jul 21, 2009
From: DALLAS, L. MURRAY
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 022984/0827 →
Assignment of Assignor's Interest
Jul 21, 2009
From: DALLAS, L. MURRAY
To: OIL STATES ENERGY SERVICES, INC.
Reel/Frame 022981/0281 →
Assignment of Assignor's Interest
Jul 21, 2009
From: OIL STATES ENERGY SERVICES, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 022984/0916 →
Assignment of Assignor's Interest
Jul 23, 2009
From: DALLAS, L. MURRAY
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 022994/0798 →
Change of Assignee Address
Jul 23, 2009
From: STINGER WELLHEAD PROTECTION, INC.
To: STINGER WELLHEAD PROTECTION, INC.
Reel/Frame 022994/0896 →
Assignment of Assignor's Interest
Jan 6, 2010
From: DALLAS, L. MURRAY; MCGUIRE, BOB; ARTHERHOLT, DANNY LEE
To: HWCES INTERNATIONAL
Reel/Frame 023740/0255 →