IP Library › Assignment 004269/0060
Patent Assignment
Reel/Frame 004269/0060

Assignment of Assignors Interest.

Recorded: 1984-05-15 Pages: 28
Assignor
HUGHES TOOL COMPANY
Executed: 1984-03-30
Assignee
Covered Properties (44)
Belleville Spring and Seal Ring
Patent: 3,313,552 →
Application: 04/317,276 →
Journal Bearing
Patent: 3,361,494 →
Application: 04/573,770 →
Boronized Drill Bit Cutters
Patent: 3,842,921 →
Application: 05/387,565 →
Wear Resistant Boronized Surfaces and Boronizing
Patent: 3,922,038 →
Application: 05/387,566 →
Heat Treatment of Welds
Patent: 3,997,374 →
Application: 05/524,919 →
Exhaust Means for Percussion Tool Motors
Patent: 3,986,565 →
Application: 05/536,529 →
Tooth Loading for Earth Boring Bits
Patent: 3,970,158 →
Application: 05/572,545 →
Lubricant Pressure Compensator for an Earth Boring Drill Bit
Patent: 4,055,225 →
Application: 05/687,131 →
Surface Smoothed Tool Joint Hardfacing
Patent: 4,243,727 →
Application: 05/790,795 →
Heat Treatment of Welds
Patent: 4,160,543 →
Application: 05/854,963 →
Biased Lubricant Compensator for an Earth Boring Drill Bit
Patent: 4,276,946 →
Application: 05/885,723 →
Drill Pipe Identification Method and System
Patent: 4,202,490 →
Application: 05/918,640 →
Centrifugal Water-Air Separation in Earth Drilling Bits
Patent: 4,245,710 →
Application: 05/921,700 →
Surface Smoothed Tool Joint Hardfacing with Grindable Tie-In
Patent: 4,228,339 →
Application: 05/974,168 →
Earth Boring Drill Bit with Snap Ring Cutter Retention
Patent: 4,236,764 →
Application: 06/006,706 →
Clad Mud Nozzle
Patent: 4,301,877 →
Application: 06/128,695 →
Plunger Lubricant Compensator for an Earth Boring Drill Bit
Patent: 4,386,667 →
Application: 06/145,549 →
Gage Row Structure of an Earth Boring Drill Bit
Patent: 4,343,372 →
Application: 06/161,701 →
Earth Boring Drill Bit with Snap Ring Cutter Retention
Patent: 4,344,658 →
Application: 06/174,483 →
Sealed and Lubricated Rock Bit with Air Protected Seal Ring
Patent: 4,375,242 →
Application: 06/177,292 →
Earth Boring Bit with Extended Gage
Patent: 4,359,113 →
Application: 06/184,708 →
Sealed Lubricated and Air Cooled Rock Bit Bearing
Patent: 4,386,668 →
Application: 06/188,443 →
Stressed Relieved Bit Leg for an Earth Boring Bit
Patent: 4,431,066 →
Application: 06/235,481 →
Cooled Journal Bearing
Patent: 4,386,663 →
Application: 06/238,258 →
Tool Joint Bench Mark
Patent: 4,438,953 →
Application: 06/238,720 →
Insert with Locking Projection
Patent: 4,406,337 →
Application: 06/249,583 →
Nozzle Retaining Ring with Crushed O-Ring
Patent: 4,400,024 →
Application: 06/288,712 →
Drill String Shock Absorber with Pressurized Lubricant System
Patent: 4,402,495 →
Application: 06/311,500 →
Earth Boring Drill Bit with Snap Ring Cutter Retention
Patent: 4,491,428 →
Application: 06/325,608 →
Triad for Rock Bit Assembly
Patent: 4,414,734 →
Application: 06/326,083 →
Telemetry Drill Pipe with Pressure Sensitive Contacts
Patent: 4,445,734 →
Application: 06/327,524 →
Rock Bit with Improved Shirttail Ventilation
Patent: 4,421,184 →
Application: 06/327,525 →
Tool Joint with Internal/External Make-Up Shoulders
Application: 06/331,934 →
Spaced Button Thrust Surface for Earth Boring Bit
Patent: 4,451,162 →
Application: 06/389,782 →
Clamping Assembly
Patent: 4,507,843 →
Application: 06/448,671 →
Floating Seal for Earth Boring Bit
Patent: 4,428,687 →
Application: 06/497,217 →
Method of Connecting Joints of Drill Pipe
Patent: 4,506,432 →
Application: 06/538,648 →
Earth Boring Bit with Pressure Compensating Rigid Face Seal
Patent: 4,516,641 →
Application: 06/542,801 →
Air Groove Scraper
Patent: 4,515,228 →
Application: 06/555,735 →
Earth Boring Bit with Pressure Compensating Bearing Seal
Patent: 4,519,719 →
Application: 06/559,651 →
Dynamic Downhole Recorder
Patent: 4,661,932 →
Application: 06/561,487 →
Solid Head Bit with Tungsten Carbide Central Core
Patent: 4,574,895 →
Application: 06/566,962 →
Pre-Set Torque Limiter Sub
Application: 06/573,180 →
Opposed Button Thrust Surfaces for Earth Boring Bits
Patent: 4,549,820 →
Application: 06/578,318 →
Related Assignments (17)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest. Aug 11, 1980
From: GALLE EDWARD M.
To: HUGHES TOOL COMPANY A DE. CORP.
Reel/Frame 003790/0951 →
Assignment of Assignors Interest. Aug 11, 1980
From: GALLE EDWARD M.
To: HUGHES TOOL COMPANY, A CORP. OF DEL.
Reel/Frame 003794/0619 →
Assignment of Assignors Interest. Sep 8, 1980
From: MORRIS WILFORD V.
To: HUGHES TOOL COMPANY
Reel/Frame 003799/0778 →
Assignment of Assignors Interest. Sep 19, 1980
From: PARISH, VERBLE W.
To: HUGHES TOOL COMPANY
Reel/Frame 003816/0955 →
Assignment of Assignors Interest. Feb 18, 1981
From: CUNNINGHAM ROBERT A.; DOLEZAL GEORGE E.
To: HUGHES TOOL COMPANY, A CORP. OF DE
Reel/Frame 003869/0112 →
Assignment of Assignors Interest. Feb 25, 1981
From: IPPOLITO RODOLFO M.
To: HUGHES TOOL COMPANY, A CORP. OF DE
Reel/Frame 003858/0154 →
Assignment of Assignors Interest. Feb 27, 1981
From: TIMME ALBERT C. JR.
To: HUGHES TOOL COMPANY, A CORP. OF DE
Reel/Frame 003858/0155 →
Assignment of Assignors Interest. Mar 8, 1982
From: LEDGERWOOD, LEROY W. III
To: HUGHES TOOL COMPANY, A CORP. OF DE
Reel/Frame 003953/0865 →
Assignment of Assignors Interest. May 9, 1984
From: ALLIED CORPORATION A NY CORP
To: EATON CORPORATION AN OH CORP
Reel/Frame 004261/0983 →
Change of Name Effective October 11, 1988 (Delaware) Nov 2, 1988
From: HUGHES TOOL COMPANY-USA, A CORP. OF DE
To: HUGHES TOOL COMPANY
Reel/Frame 005169/0319 →
Assignment of Assignors Interest. Jan 31, 1989
From: HUGHES TOOL COMPANY-USA
To: BAKER HUGHES, INC., A DE. CORP.
Reel/Frame 005014/0418 →
Assignment of Assignors Interest. Aug 14, 1989
From: HUGHES TOOL COMPANY, - USA, A DE. CORP.
To: BAKER HUGHES, INC., A DE. CORP.
Reel/Frame 005161/0030 →
Assignment of Assignors Interest. Dec 5, 1990
From: BAKER HUGHES INCORPORATED
To: BH TOOL JOINTS, INC., A CORP. OF TX
Reel/Frame 005570/0504 →
Merger and Change of Name November 02, 1990 Delaware Jun 20, 1991
From: BH TOOL JOINTS, INC. A CORP. OF TEXAS MERGED WITH AND INTO EVI TJ, INC. A CORP. OF DELAWARE
To: BH TOOL JOINTS, INC. A CORP. OF TEXAS
Reel/Frame 005741/0538 →
Assignment of Assignors Interest. Jan 17, 1992
From: BH TOOL JOINTS, INC.
To: GRANT TFW, INC.
Reel/Frame 005974/0246 →
Change of Name Jan 8, 2001
From: GRANT TFW, INC.
To: GRANT PRIDECO, INC.
Reel/Frame 011436/0249 →
Assignment of Assignor's Interest Jan 17, 2001
From: GRANT PRIDECO, INC.
To: GRANT PRIDECO, L.P.
Reel/Frame 011449/0400 →