Patent Assignment
Reel/Frame 004098/0273
Assignment of Assignors Interest.
Recorded: 1983-02-22
Pages: 9
Assignor
BJ-HUGHES INC.,
Executed: 1982-12-31
Assignee
HUGHES TOOL COMPANY, A CORP. OF DEL.
P.O. BOX 2539,, HOUSTON,, TEXAS, 77001
Covered Properties
(31)
Non-Rotating Single-Collar Drill Pipe Protector
Patent:
3,410,613 →
Application:
04/552,746 →
Block and Hook Structure Positioning and Guiding Apparatus
Patent:
3,507,405 →
Application:
04/687,819 →
Orienting Tool Slant Hole Drilling
Patent:
3,455,401 →
Application:
04/726,870 →
Annulus Pressure Control Test Apparatus
Patent:
3,891,033 →
Application:
05/430,989 →
Well Bore Test and Safety Valve Structure
Patent:
3,915,228 →
Application:
05/544,392 →
Automated Pipe Handling System
Patent:
4,042,123 →
Application:
05/547,375 →
Stroke Actuated Well Testing Tool
Patent:
4,050,512 →
Application:
05/702,406 →
Computer-Controlled Oil Drilling Rig Having Drawworks Motor and Brake Control Arrangement
Patent:
4,187,546 →
Application:
05/777,724 →
Apparatus for Sensing a Distended Location on a Drill Pipe
Patent:
4,327,261 →
Application:
06/003,035 →
Power Tongs Control Arrangement
Patent:
4,202,225 →
Application:
06/026,820 →
Wide Angle Inclinometer
Patent:
4,216,590 →
Application:
06/027,771 →
Method of Plugging a Well
Patent:
4,275,788 →
Application:
06/115,870 →
Valve Assembly for an Inflatable Packer System
Patent:
4,332,298 →
Application:
06/120,180 →
Inflatable Packer System
Patent:
4,345,648 →
Application:
06/120,418 →
Check/Relief Valve for an Inflatable Packer System
Patent:
4,316,504 →
Application:
06/120,585 →
Packer Deflate Subassembly for an Inflatable Packer System
Patent:
4,345,653 →
Application:
06/121,960 →
Valve Retrieval Mechanism for an Inflatable Packer System
Patent:
4,320,803 →
Application:
06/124,664 →
Pipe Gripping Head
Patent:
4,304,433 →
Application:
06/130,761 →
Pipe Manipulator
Patent:
4,345,864 →
Application:
06/130,762 →
Rotary Power Slips
Patent:
4,333,209 →
Application:
06/165,585 →
Apparatus for Making Multiple Orientation Measurements in a Drill String
Patent:
4,351,116 →
Application:
06/186,922 →
Zero Free Water Cement Composition and Method
Patent:
4,381,034 →
Application:
06/195,460 →
Expansive Admixture
Patent:
4,332,619 →
Application:
06/206,507 →
Resin Coated Aluminum
Patent:
4,328,038 →
Application:
06/206,508 →
Method of Grouting Offshore Structures
Application:
06/221,946 →
Slip Setting Ring
Patent:
4,415,193 →
Application:
06/239,308 →
Swivel Unit
Patent:
4,395,061 →
Application:
06/273,821 →
Drag Spring Unit
Patent:
4,411,315 →
Application:
06/278,915 →
Slip-Type Elevator Locking Mechanism
Patent:
4,361,940 →
Application:
06/289,945 →
Shock Absorbing Snubber for Derrick Hooks
Patent:
4,438,910 →
Application:
06/405,230 →
Link Engaging Pipe Elevator
Patent:
4,396,216 →
Application:
06/413,044 →
Related Assignments
(12)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Oct 9, 1980
From: NOVOTNY, RUDOLF J.; GANDY, RICHARD G.
To: B-J HUGHES INC., A CORP. OF DE.
Reel/Frame 003974/0813 →
Assignment of Assignors Interest.
Nov 13, 1980
From: BRIGGS GARRY L.
To: BJ-HUGHES INC., A CORP. OF DE.
Reel/Frame 003835/0875 →
Assignment of Assignors Interest.
Nov 13, 1980
From: GANDY RICHARD G.; BRIGGS GARRY L.
To: BJ-HUGHES INC., A CORP. OF DE.
Reel/Frame 003860/0981 →
Assignment of Assignors Interest.
Dec 31, 1980
From: SWEATMAN, RONALD E.
To: BJ-HUGHES, INC., 777 SOUTH POST RD. #333, HOUSTON, TEX. A CORP. OF DE.
Reel/Frame 003891/0750 →
Assignment of Assignors Interest.
Aug 14, 1981
From: CARLBERG, CHARLES E.
To: BJ-HUGHES INC.
Reel/Frame 004060/0153 →
Assignment of Assignors Interest.
Jan 8, 1982
From: SHELDON, LOREN B.
To: BJ-HUGHES INC., TX A CORP. OF DE
Reel/Frame 003939/0844 →
Assignment of Assignors Interest.
Mar 23, 1982
From: HERST, NEIL W.
To: BJ-HUGHES INC., A CORP. OF DE.
Reel/Frame 003961/0049 →
Assignment of Assignors Interest.
Jul 20, 1982
From: SCOTT, FLOYD L. JR.
To: BJ-HUGHES INC.
Reel/Frame 004013/0484 →
Assignment of Assignors Interest.
Aug 8, 1988
From: HUGHES TOOL COMPANY
To: BAKER HUGHES INCORPORATED
Reel/Frame 005050/0861 →
Assignment of Assignors Interest.
Aug 18, 1988
From: BAKER HUGHES INCORPORATED
To: HUGHES TOOL COMPANY-USA, A DE CORP.
Reel/Frame 004944/0763 →
Assignment of Assignors Interest.
Jan 17, 1989
From: HUGHES TOOL CONPANY-USA
To: VARCO INTERNATIONAL, INC., A CA. CORP.
Reel/Frame 005013/0843 →
Assignment of Assignors Interest.
Sep 25, 1991
From: BAKER HUGHES INCORPORATED
To: BJ SERVICES COMPANY
Reel/Frame 005852/0291 →