IP Library › Assignment 008146/0930
Patent Assignment
Reel/Frame 008146/0930

Change of Name

Recorded: 1996-09-23 Pages: 10
Assignor
NATIONAL-OILWELL
Executed: 1996-09-18
Assignee
NATIONAL-OILWELL, L.P.
5555 SAN FELIPE,STE. 779, HOUSTON, TEXAS, 77056
Covered Properties (31)
Control Valve
Patent: 4,137,933 →
Application: 05/768,040 →
Eccentric Shaft and Method of Making a Shaft
Patent: 4,231,671 →
Application: 05/958,458 →
Multiple Cup Downwell Gas Separator
Patent: 4,241,788 →
Application: 06/008,183 →
Downhole Seal for Low Profile Oil Well Pumping Installations
Patent: 4,262,742 →
Application: 06/066,631 →
Downhole Seal for Low Profile Oil Well Pumping Installations
Patent: 4,431,052 →
Application: 06/207,946 →
Drilling Rig Drawworks Hook Load Overspeed Preventing System
Patent: 4,434,971 →
Application: 06/233,561 →
Alloy Steel for Roll Caster Shell
Patent: 4,409,027 →
Application: 06/393,192 →
Improved Reciprocable Pump
Patent: 4,467,703 →
Application: 06/411,932 →
Self-Compensating Oscillatory Pump Control
Patent: 4,534,706 →
Application: 06/468,341 →
Brake System
Patent: 4,522,450 →
Application: 06/489,116 →
Poppet Type Fluid Valve with Replaceable Wear Surface
Patent: 4,487,222 →
Application: 06/491,282 →
Oil Well Standing Valve
Patent: 4,519,457 →
Application: 06/580,684 →
Pedestal Crane Mounting System
Patent: 4,513,869 →
Application: 06/611,116 →
Reciprocating Pump Piston
Patent: 4,601,235 →
Application: 06/621,832 →
Well Derrick
Patent: 4,585,213 →
Application: 06/638,426 →
Boom Crane Centering
Patent: 4,653,271 →
Application: 06/655,215 →
Load Recall Valve
Patent: 4,554,947 →
Application: 06/666,186 →
Overload Protection System for a Crane
Patent: 4,787,524 →
Application: 06/780,007 →
Unitized Check Valve
Patent: 4,667,697 →
Application: 06/875,253 →
Rotary Drive Apparatus for Downhole Pump
Patent: 4,716,961 →
Application: 07/011,576 →
Power Tongs and Clamping Units Therefor
Patent: 4,732,061 →
Application: 07/023,384 →
Apparatus for Making and Breaking Threaded Well Pipe Connections
Patent: 4,843,945 →
Application: 07/023,385 →
Boom Crane Centering
Patent: 4,782,662 →
Application: 07/032,180 →
Sub Assembly for a Swivel
Patent: 4,781,359 →
Application: 07/100,158 →
Active Counterbalance for a Power Swivel During Well Drilling
Patent: 4,813,498 →
Application: 07/163,580 →
Spring Actuated Power Swivel Support Rollers
Patent: 4,877,093 →
Application: 07/163,583 →
Support System for a Top Driven Drilling Unit
Patent: 4,809,792 →
Application: 07/163,584 →
Seal for a Pump Valve
Patent: 4,951,707 →
Application: 07/335,725 →
Positive Lock of a Drive Assembly
Patent: 4,981,180 →
Application: 07/379,765 →
Apparatus for Supporting a Direct Drive Drilling Unit in a Position Offset from the Centerline of a Well
Patent: 5,038,871 →
Application: 07/538,634 →
Alloy Steel for Roll Caster Shell
Patent: 5,599,497 →
Application: 08/507,630 →
Related Assignments (25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest. Feb 11, 1981
From: CORDREY RICHARD N.
To: ARMCO INC., A CORP. OF OHIO
Reel/Frame 003866/0351 →
Assignment of Assignors Interest. Mar 19, 1981
From: JAMES ROBERT G.
To: ARMCO INC.
Reel/Frame 003841/0530 →
Assignment of Assignors Interest. Mar 19, 1981
From: JAMES ROBERT G.
To: ARMCO, INC., A CORP. OF OH.
Reel/Frame 003852/0261 →
Assignment of Assignors Interest. Jul 12, 1982
From: CORDEA, JAMES N.; SHETH, HARSHAD V.
To: ARMCO INC.
Reel/Frame 004021/0469 →
Assignment of Assignors Interest. Aug 26, 1982
From: REDWINE, FLETCHER H.; THOMPSON, JAMES E.
To: UNITED STATES STEEL CORPORATION
Reel/Frame 004041/0271 →
Assignment of Assignors Interest. Feb 22, 1983
From: PALM, RICHARD R.; JAMES, ROBERT G.; FISHER, ROBERT E.
To: ARMCO INC., A CORP. OF OH
Reel/Frame 004098/0592 →
Assignment of Assignors Interest. Apr 27, 1983
From: HEILHECKER, JOE K.; BYRNE, JAMES E.
To: GH TTE
Reel/Frame 004123/0415 →
Assignment of Assignors Interest. May 3, 1983
From: CRAWFORD, RICHARD A.
To: ARMCO INC.
Reel/Frame 004126/0951 →
Assignment of Assignors Interest. Feb 16, 1984
From: HOLLAND, RONALD A.; PETRIE, HAROLD L.; BRENNAN, JOHN R.; CHRIST, FREDERICK C.
To: ARMCO INC., AN OH CORP.
Reel/Frame 004231/0416 →
Assignment of Assignors Interest. Jun 18, 1984
From: ROBERTS, EMMETT T.
To: TRW INC., A CORP. OF OH
Reel/Frame 004305/0331 →
Assignment of Assignors Interest. Aug 7, 1984
From: SLAGLE, GRADY M. JR.; SWAIM, RAYMOND J.
To: ARMCO INC., A CORP. OF OH
Reel/Frame 004296/0843 →
Assignment of Assignors Interest. Oct 29, 1984
From: COBB, J. EPHRAIM III
To: ARMCO INC., OH A CORP. OF OH
Reel/Frame 004329/0971 →
Assignment of Assignors Interest. Nov 14, 1984
From: REEVES, WILLIAM E.; COBB, JASPER E. III
To: ARMCO INC., A CORP OF OH
Reel/Frame 004369/0435 →
Assignment of Assignors Interest. Jan 31, 1986
From: COBB, JASPER E. III; BEZNER, WILLIAM A.
To: ARMCO INC., A CORP OF OHIO
Reel/Frame 004504/0501 →
Assignment of Assignors Interest. Dec 18, 1987
From: MATUS, WAYNE L.
To: NATIONAL-OILWELL, 950 CORBINDALE & KATY FREEWAY, HOUSTON, TX 77210, A GENERAL PARTNERSHIP OF DE
Reel/Frame 004808/0829 →
Assignment of Assignors Interest. Dec 23, 1987
From: DINSDALE, MICHAEL C.
To: NATIONAL-OILWELL
Reel/Frame 004832/0875 →
Assignment of Assignors Interest. Dec 23, 1987
From: DINSDALE, MICHAEL C.
To: NATIONAL-OILWELL, 950 CORBINDALE & KATY FREEWAY, HOUSTON, TX 77210 A GENERAL PARTNERSHIP OF DE.
Reel/Frame 004809/0606 →
Assignment of Assignors Interest. Mar 3, 1988
From: LYNCH, JAMES E.; FORD, DAVID B.
To: NATIONAL-OILWELL, A GENERAL PARTNERSHIP OF DE.
Reel/Frame 004855/0287 →
Assignment of Assignors Interest. Jun 10, 1988
From: ARMCO INC., A OH. CORP.
To: NATIONAL-OILWELL, A GENERA PARTNERSHIP OF DE.
Reel/Frame 004886/0292 →
Assignment of Assignors Interest. Oct 27, 1988
From: TRW INC., A CORP. OF OH
To: SANDVIK ROCK TOOLS, INC.
Reel/Frame 004967/0306 →
Assignment of Assignors Interest. Jun 18, 1990
From: SANDVIK ROCK TOOLS, INC., A CORP OF DE
To: NATIONAL-OILWELL, A GENERAL PARTNERSHIP OF DE
Reel/Frame 005365/0292 →
Security Interest Apr 6, 1993
From: NATIONAL-OILWELL
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 006486/0856 →
Release of Security Interest Mar 1, 1995
From: NATIONAL-OILWELL
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 007453/0241 →
Security Interest Mar 7, 1995
From: NATIONAL-OILWELL
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 007467/0232 →
Release of Security Interest Jan 24, 1996
From: NATIONAL-OILWELL
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 007613/0782 →