IP Library › Assignment 006822/0975
Patent Assignment
Reel/Frame 006822/0975

Assignment of Assignor's Interest

Recorded: 1994-01-12 Pages: 9
Assignor
Assignee
SMITH INTERNATIONAL, INC. (A DELAWARE CORPORATION)
16740 HARDY, HOUSTON, TEXAS, 77032
Covered Properties (49)
Mud Retaining Valve
Patent: 4,128,108 →
Application: 05/789,018 →
High and Low Pressure Seal
Patent: 4,201,392 →
Application: 06/030,285 →
Liner Hanger Assembly
Patent: 4,498,534 →
Application: 06/079,037 →
Setting Tools and Liner Hanger Assembly
Patent: 4,287,949 →
Application: 06/109,979 →
Whipstock Setting Method and Apparatus
Patent: 4,397,355 →
Application: 06/268,482 →
Setting Tool and Retrievable Landing Assembly
Patent: 4,497,371 →
Application: 06/274,170 →
Retrievable Insert Landing Assembly
Patent: 4,399,873 →
Application: 06/274,284 →
Barrier Tool for Polished Bore Receptacle
Patent: 4,482,014 →
Application: 06/397,680 →
Setting Tools and Liner Hanger Assembly
Patent: 31,881 →
Application: 06/529,757 →
Liner Hanger Assembly
Patent: 5,181,570 →
Application: 06/609,104 →
Method of and Apparatus for Cutting and Recovering of Submarine Surface Casing
Patent: 4,550,781 →
Application: 06/617,746 →
Hydraulic/Mechanical Setting Tool and Liner Hanger
Patent: 4,603,743 →
Application: 06/697,231 →
Pbr with Latching System for Tubing
Patent: 4,601,343 →
Application: 06/698,145 →
Casing Patch Seal
Patent: 4,660,863 →
Application: 06/758,370 →
Well String Cutting Apparatus
Patent: 4,646,826 →
Application: 06/759,737 →
Wiper Plug Cementing System and Method of Use Thereof
Patent: 4,671,358 →
Application: 06/810,089 →
Drilling Apparatus and Cutter Therefor
Patent: 4,722,615 →
Application: 06/851,828 →
Drilling Head with Bayonet Coupling
Patent: 4,754,820 →
Application: 06/875,886 →
Liner Hanger Assembly with Setting Tool
Patent: 4,712,615 →
Application: 06/881,053 →
Liner Hanger Assembly with Combination Setting Tool
Patent: 4,712,614 →
Application: 06/901,835 →
Self-Lubricating Well Tools and Seal Elements Therefor
Patent: 4,793,424 →
Application: 07/020,260 →
Whipstock Packer Assembly
Patent: 4,765,404 →
Application: 07/037,517 →
Method and Apparatus for Setting an Underwater Drilling System
Patent: 4,759,413 →
Application: 07/037,818 →
Liner and Drill Pipe Assembly
Patent: 4,898,243 →
Application: 07/147,533 →
Drilling Apparatus and Cutter
Patent: 4,865,137 →
Application: 07/186,716 →
Rotatable Liner Hanger
Patent: 4,848,462 →
Application: 07/191,387 →
Liner Hanger with Retrievable Ball Valve Seat
Patent: 4,828,037 →
Application: 07/191,578 →
Liner Hanger with Collapsible Ball Valve Seat
Patent: 4,862,966 →
Application: 07/194,131 →
Stage Cementing Valve
Patent: 4,880,058 →
Application: 07/194,132 →
Detonation Assembly for Explosive Wellhead Severing System
Patent: 4,909,320 →
Application: 07/258,228 →
Mud Saver Valve with Replaceable Inner Sleeve
Patent: 4,962,819 →
Application: 07/305,213 →
Mud Saver Valve with Increased Flow Check Valve
Patent: 4,955,949 →
Application: 07/305,319 →
Geothermal Wellhead Repair Unit
Patent: 4,984,636 →
Application: 07/313,688 →
Rotatable Liner Hanger with Multiple Bearings and Cones
Patent: 4,926,938 →
Application: 07/351,734 →
Packer for Wellhead Repair Unit
Patent: 5,009,265 →
Application: 07/404,159 →
Pressure Operated Circulation Valve
Patent: 5,048,611 →
Application: 07/533,028 →
Geothermal Wellhead Repair Unit
Patent: 5,040,600 →
Application: 07/540,712 →
Stripper Rubbers for Drilling Heads
Patent: 5,062,479 →
Application: 07/560,526 →
Landing Collar and Float Valve Assembly
Patent: 5,058,672 →
Application: 07/566,064 →
Setting Tool for a Liner Hanger Assembly
Patent: 5,048,606 →
Application: 07/579,547 →
Finger Nut Setting Tool and Liner Hanger Assembly
Patent: 5,074,362 →
Application: 07/579,653 →
Double Nut Setting Tool and Linger Hanger Assembly
Patent: 5,048,612 →
Application: 07/579,654 →
Whipstock Assembly with Hydraulically Set Anchor
Patent: 5,154,231 →
Application: 07/585,532 →
Semiconductor Memory Device Having Means for Repairing the Memory Device with Respect to Possible Detective Memory Portions
Patent: 5,058,071 →
Application: 07/646,508 →
Dual Rotating Stripper Rubber Drilling Head
Patent: 5,213,158 →
Application: 07/811,553 →
Pressure Balanced Charge Container for Wellhead Severing System
Patent: 5,238,063 →
Application: 07/925,718 →
Retrievable Whipstock
Patent: 5,335,737 →
Application: 07/978,842 →
Turbine Pump Ring for Drilling Heads
Patent: 5,305,839 →
Application: 08/004,886 →
Pressure Balanced Inner Chamber of a Drilling Head
Patent: 5,348,107 →
Application: 08/023,499 →
Related Assignments (25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest. Oct 3, 1980
From: LINDSEY HIRAM E. JR.
To: MWL TOOL AND SUPPLY COMPANY
Reel/Frame 003805/0356 →
Assignment of Assignors Interest. May 29, 1981
From: MC LAMORE, ROY T.
To: MASCO CORPORATION
Reel/Frame 003893/0140 →
Assignment of Assignors Interest. Mar 12, 1982
From: LINDSEY, HIRAM E. JR.
To: MWL TOOL AND SUPPLY COMPANY, A CORP. OF TX.
Reel/Frame 003956/0340 →
Assignment of Assignors Interest. Jul 12, 1982
From: LINDSEY, HIRAM E.
To: MWL TOOL AND SUPPLY COMPANY
Reel/Frame 004010/0273 →
Assignment of Assignors Interest. Nov 15, 1982
From: ALLWIN, ROGER P.
To: MWL TOOL AND SUPPLY COMPANY
Reel/Frame 004061/0552 →
Assignment of Assignors Interest. Mar 12, 1984
From: AMERICAN INTERNATIONAL TOOL CO., INC.
To: PATNET SPECIALTIES, INC.
Reel/Frame 004234/0258 →
Assignment of Assignors Interest. Mar 12, 1984
From: PATENT SPECIALTIES, INC.
To: PARKO SERVICES, INC.
Reel/Frame 004234/0256 →
Assignment of Assignors Interest. Sep 7, 1984
From: ALLWIN, ROGER P.
To: MWL TOOL AND SUPPLY COMPANY, A TX CORP.
Reel/Frame 004297/0596 →
Assignment of Assignors Interest. Oct 26, 1984
From: KAGLER, EDMOND JR.
To: A-Z INTERNATIONAL TOOL COMPANY, A TX CORP.
Reel/Frame 004318/0552 →
Assignment of Assignors Interest. Mar 4, 1985
From: PARKO SERVICES, INC.
To: A-Z INTERNATIONAL TOOL COMPANY, A CORP OF TX
Reel/Frame 004368/0897 →
Assignment of Assignors Interest. Jun 13, 1985
From: LINDSEY, HIRAM E., JR.
To: MWL TOOL AND SUPPLY COMPANY, A CORP OF DE
Reel/Frame 004414/0894 →
Assignment of Assignors Interest. Jun 17, 1985
From: LINDSEY, HIRAM E. JR.,; ALLWIN, ROGER P.; YOKLEY, JOHN M.
To: MWL TOOL AND SUPPLY COMPANY, A CORP OF DE
Reel/Frame 004419/0435 →
Assignment of Assignors Interest. Jul 29, 1985
From: BAILEY, THOMAS F.; CAMPBELL, JOHN E.; SHAH, NEHAL M.
To: A-Z INTERNATIONAL TOOL COMPANY A CORP OF TX
Reel/Frame 004437/0373 →
Assignment of Assignors Interest. Jun 10, 1986
From: BAILEY, THOMAS F.; SHAH, NEHAL M.
To: A-Z INTERNATIONAL TOOL COMPANY.
Reel/Frame 004556/0619 →
Assignment of Assignors Interest. Jul 3, 1986
From: MWL TOOL AND SUPPLY COMPANY, A CORP. OF TEXAS
To: MWL TOOL COMPANY
Reel/Frame 004569/0496 →
Assignment of Assignors Interest. Jul 3, 1986
From: AGNEW, JAMES W.
To: MWL TOOL COMPANY
Reel/Frame 004569/0493 →
Assignment of Assignors Interest. Nov 23, 1987
From: BAILEY, THOMAS F.; CAMPBELL, JOHN E.
To: DRILEX SYSTEMS, INC., HOUSTON, TEXAS, A CORP.
Reel/Frame 004788/0396 →
Assignment of Assignors Interest. Dec 21, 1987
From: MASCO CORPORATION
To: DRILEX SYSTEMS, INC.
Reel/Frame 004969/0240 →
Assignment of Assignors Interest. Jan 25, 1988
From: LINDSEY, HIRAM E.; COLE, PAUL W.
To: LINDSEY COMPLETION SYSTEMS, INC., A CORP. OF DE
Reel/Frame 004854/0706 →
Assignment of Assignors Interest. May 16, 1988
From: LINDSEY, HIRAM E.; ALLWIN, ROGER P.; ADAMS, RICHARD W.
To: LINDSEY COMPLETION SYSTEMS, INC.
Reel/Frame 004891/0876 →
Assignment of Assignors Interest. Jun 8, 1988
From: BAILEY, THOMAS F.; CAMPBELL, JOHN E.
To: DRILEX SYSTEMS, INC., HOUSTON, TEXAS, A TEXAS CORP.
Reel/Frame 004886/0208 →
Change of Name Jun 24, 1988
From: A-Z INTERNATIONAL TOOL COMPANY
To: DRILEX SYSTEMS, INC.
Reel/Frame 004911/0748 →
Change of Name Effective, 6-5-87, Texas Jan 23, 1989
From: A-Z INTERNATIONAL TOOL COMPANY
To: DRILEX SYSTEMS, INC.
Reel/Frame 005010/0103 →
Released by Secured Party Apr 6, 1989
From: NATIONAL BANK OF CANADA; ROYAL BANK OF CANADA, THE; FIRST NATIONAL BANK OF BOSTON, THE
To: WARRINGTON, INC.,; WARRINGTON PRODUCTS INC.
Reel/Frame 005091/0501 →
Security Interest Apr 6, 1989
From: WARRINGTON INC., A CANADIAN CORP.; CANSTAR SPORTS GROUP, INC., A CANADAIAN CORP.
To: FIRST NATIONAL BANK OF BOSTON, THE; CANADIAN IMPERIAL BANK OF COMMERCE; BANK OF BOSTON CANADA
Reel/Frame 005091/0508 →