Patent Assignment
Reel/Frame 029659/0540
Assignment of Assignor's Interest
Recorded: 2013-01-18
Pages: 9
Assignor
TESCO CORPORATION
Executed: 2012-06-04
Assignee
SCHLUMBERGER TECHNOLOGY CORPORATION
300 SCHLUMBERGER DRIVE, SUGAR LAND, TEXAS, 77478
Covered Properties
(50)
Method for Drilling with Casing
Cement Float and Method for Drilling and Casing a Wellbore with a Pump Down Cement Float
Under Reamer
Seal Cup for a Wellbore Tool and Method
Anchoring Device for a Wellbore Tool
Retrievable Center Bit
Method for Drilling with Casing
Wireline Entry Sub and Method of Using
Method for Drilling with a Wellbore Liner
Casing Bottom Hole Assembly Retrieval Process
Method for Drilling and Casing a Wellbore with a Pump Down Cement Float
Method for Drilling and Casing a Wellbore with a Pump Down Cement Float
Anchoring Device for a Wellbore Tool
Method for Drilling and Casing a Wellbore with a Pump Down Cement Float
Wireline Entry Sub
Seal Cup for a Wellbore Tool and Method
Wireline Entry Sub
Controlling Backflow Pressure During Retrieval of Bottom Hole Assembly
Retrieval Tool with Slips for Retrieving Bottom Hole Assembly During Casing While Drilling Operations
Retrieval of Bottom Hole Assembly During Casing While Drilling Operations
Incremental U-Tube Process to Retrieve of Bottom Hole Assembly During Casing While Drilling Operations
Patent:
7,604,057 →
Application:
12/125,808 →
Monitoring Flow Rates While Retrieving Bottom Hole Assembly During Casing While Drilling Operations
Circulation System for Retrieval of Bottom Hole Assembly During Casing While Drilling Operations
Gate Valve and Method of Controlling Pressure During Casing-While-Drilling Operations
Casing Shoe and Retrievable Bit Assembly
Method of Circulating While Retrieving Downhole Tool in Casing
Liner Drilling Method
Method and Apparatus for Retrieving and Installing a Drill Lock Assembly for Casing Drilling
Method for Drilling with Casing
Tools and Methods Useful with Wellbore Reverse Circulation
Pump Down Cement Retaining Device
Method of Liner Drilling and Cementing Utilizing a Concentric Inner String
Liner Drilling System and Method of Liner Drilling with Retrievable Bottom Hole Assembly
Method of Selecting a Drilling Motor for a Casing Drill String
Jetted Underreamer Assembly
Method of Circulating While Retrieving Bottom Hole Assembly in Casing
Method of Drilling and Running Casing in Large Diameter Wellbore
Offshore Casing Drilling Method
Torque Transmitting Load Shoulder
Pump In Reverse Outliner Drilling System
Torque Transmitting Elastomeric Element in Casing Drilling Drill Lock Assembly
Patent:
8,678,108 →
Application:
12/893,923 →
Well Tool with Shearable Collet
Dampered Drop Plug
Flow Control Diverter Valve
Apparatus and Method for Cementing Liner
Mechanical Liner Drilling Cementing System
Method for Detecting and Mitigating Drilling Inefficiencies
Method and Apparatus for Strengthening a Wellbore
Liner Cementation Process and System
Liner Top Packer for Liner Drilling
Related Assignments
(17)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 9, 2002
From: VERT, JEFFERY WALTER; ANGMAN, PER G.
To: TESCO CORPORATION
Reel/Frame 014060/0650 →
Assignment of Assignor's Interest
Dec 9, 2002
From: ANGMAN, PER G.
To: TESCO CORPORATION
Reel/Frame 014060/0645 →
Assignment of Assignor's Interest
Aug 25, 2003
From: STOUT, MARK CLIFTON; CATRINESCU, CRISTIAN MIHAI; WALTER, BRUNO H.
To: TESCO CORPORATION
Reel/Frame 016697/0433 →
Assignment of Assignor's Interest
May 16, 2005
From: HUGHES, JOHN; WARREN, TOMMY M.
To: TESCO CORPORATION
Reel/Frame 016020/0448 →
Assignment of Assignor's Interest
Jun 6, 2005
From: SLACK, MAURICE WILLIAM
To: TESCO CORPORATION
Reel/Frame 017188/0733 →
Assignment of Assignor's Interest
Jun 6, 2005
From: ANGMAN, PER G.; SLACK, MAURICE WILLIAM
To: TESCO CORPORATION
Reel/Frame 017192/0193 →
Assignment of Assignor's Interest
Oct 18, 2005
From: STOUT, MARK CLIFTON; CATRINESCU, CRISTIAN MIHAI; WALTER, BRUNO H.
To: TESCO CORPORATION
Reel/Frame 016654/0791 →
Assignment of Assignor's Interest
Oct 16, 2006
From: TATE, BARRY J.; WARREN, TOMMY M.; TESSARI, ROBERT M.
To: TESCO CORPORATION
Reel/Frame 018395/0424 →
Assignment of Assignor's Interest
Nov 24, 2006
From: ANGMAN, PER G.; TESSARI, ROBERT
To: TESCO CORPORATION
Reel/Frame 018549/0966 →
Assignment of Assignor's Interest
Nov 24, 2006
From: ANGMAN, PER G; WARREN, TOMMY M.
To: TESCO CORPORATION
Reel/Frame 018549/0954 →
Assignment of Assignor's Interest
Dec 14, 2006
From: ANGMAN, PER G.; TESSARI, ROBERT M.; WARREN, TOMMY M.
To: TESCO CORPORATION
Reel/Frame 018633/0372 →
Assignment of Assignor's Interest
Mar 30, 2007
From: VERT, JEFFERY WALTER; ANGMAN, PER G.
To: TESCO CORPORATION
Reel/Frame 019091/0355 →
Assignment of Assignor's Interest
May 3, 2007
From: VERT, JEFFERY WALTER; ANGMAN, PER G.
To: TESCO CORPORATION
Reel/Frame 019242/0692 →
Assignment of Assignor's Interest
Oct 23, 2007
From: ANGMAN, PER G.; SLACK, MAURICE WILLIAM
To: TESCO CORPORATION
Reel/Frame 019999/0206 →
Assignment of Assignor's Interest
Jan 15, 2008
From: SLACK, MAURICE WILLIAM
To: TESCO CORPORATION
Reel/Frame 020365/0146 →
Assignment of Assignor's Interest
Apr 25, 2008
From: ANGMAN, PER G.; WARREN, TOMMY M.
To: TESCO CORPORATION
Reel/Frame 020887/0536 →
Assignment of Assignor's Interest
May 15, 2008
From: ANGMAN, PER G.
To: TESCO CORPORATION
Reel/Frame 020950/0691 →