Patent Assignment
Reel/Frame 005370/0475
Assignment of Assignors Interest.
Recorded: 1990-07-05
Pages: 8
Assignor
NL INDUSTRIES, INC.
Executed: 1987-08-24
Assignee
CAMCO, INCORPORATED, A CORP. OF TX
7030 ARDMORE,, HOUSTON,, TEXAS, 77059
Covered Properties
(17)
Drill Bit and Method of Manufacture
Patent:
4,350,215 →
Application:
06/189,370 →
Drill Bit and Method of Metallurgical and Mechanical Holding of Cutters in a Drill Bit
Patent:
4,453,605 →
Application:
06/259,182 →
Drill Bit
Patent:
4,505,342 →
Application:
06/443,657 →
Pdc Cutter and Bit
Patent:
4,538,690 →
Application:
06/468,668 →
Drag Bit and Cutters
Patent:
4,558,753 →
Application:
06/468,669 →
Drill Bit Manufacturing Method
Patent:
4,605,157 →
Application:
06/575,555 →
Drill Bit Cutter
Patent:
4,570,725 →
Application:
06/575,556 →
Drill Bit and Cutter Therefor
Patent:
4,640,375 →
Application:
06/578,182 →
Drag Bit and Cutters
Patent:
4,593,777 →
Application:
06/578,183 →
Drill Bit and Cutter Therefor
Patent:
4,669,556 →
Application:
06/693,848 →
Rotary Drill Bits
Patent:
4,718,505 →
Application:
06/754,506 →
Drag Type Drill Bit
Patent:
4,660,659 →
Application:
06/763,031 →
Drill Bit and Cutter Therefor
Patent:
4,676,324 →
Application:
06/823,681 →
Drill Bit and Method of Manufacture
Patent:
4,711,144 →
Application:
06/870,075 →
Rotary Drill Bits
Patent:
4,727,946 →
Application:
06/876,847 →
Rotary Drill Bits for Use in Coring Holes in Subsurface Formations
Patent:
4,790,396 →
Application:
06/879,137 →
Drill Bit and Cutter Therefor
Patent:
4,862,977 →
Application:
07/033,072 →
Related Assignments
(20)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Apr 30, 1981
From: SHORT LOT W. JR.
To: NL INDUSTRIES, INC.
Reel/Frame 003882/0358 →
Assignment of Assignors Interest.
Feb 22, 1983
From: SHORT, LOT W. JR.
To: NL INDUSTRIES, INC., 1230 AVENUE OF THE AMERICAS, A CORP. OF N.J.
Reel/Frame 004099/0096 →
Assignment of Assignors Interest.
Mar 14, 1984
From: BARR, JOHN D.; FULLER, JOHN M.
To: NL INDUSTRIES, INC., A CORP OF NJ
Reel/Frame 004232/0119 →
Assignment of Assignors Interest.
Mar 14, 1984
From: BARR, JOHN D.
To: NL INDUSTRIES, INC., A CORP OF NJ
Reel/Frame 004232/0112 →
Assignment of Assignors Interest.
Mar 14, 1984
From: BARR, JOHN D.; LAMB, HAYDN R.
To: NL INDUSTRIES, INC., 1230 AVENUE OF THE AMERICAS NEW YORK, NY A CORP. OF NJ
Reel/Frame 004274/0330 →
Assignment of Assignors Interest.
Mar 14, 1984
From: MATTHIAS, TERRY; BARR, JOHN D.
To: NL INDUSTRIES, INC., NEW YORK, NY A CORP. OF
Reel/Frame 004274/0332 →
Assignment of Assignors Interest.
Apr 13, 1984
From: BARR, JOHN D.; FULLER, JOHN M.
To: NL INDUSTRIES, INC., 1230 AVENUE OF THE AMERICAS, NEW YORK, NY A NJ CORP.
Reel/Frame 004258/0536 →
Assignment of Assignors Interest.
Apr 13, 1984
From: BARR, JOHN D.
To: NL INDUSTRIES INC.
Reel/Frame 004340/0278 →
Assignment of Assignors Interest.
Apr 22, 1985
From: BARR, JOHN D.; MATTHIAS, TERRY R.; TAYLOR, MALCOLM R.
To: NL INDUSTRIES, INC 1230 AVENUE OF THE AMERICAS, NEW YORK, NY A NJ CORP.
Reel/Frame 004398/0687 →
Assignment of Assignors Interest.
Aug 23, 1985
From: SHORT, LOT W. JR.,; BARR, JOHN D.
To: NL INDUSTRIES, INC., 1230 AVENUE OF THE AMERICAS, NEW YORK NY A CORP OF NEW JERSEY
Reel/Frame 004492/0130 →
Assignment of Assignors Interest.
Sep 9, 1985
From: FULLER, JOHN
To: NL PETROLEUM PRODUCTS LIMITED
Reel/Frame 004454/0462 →
Assignment of Assignors Interest.
Jun 20, 1986
From: BARR, JOHN D.; MATTHIAS, TERRY R.
To: NL INDUSTRIES, INC.
Reel/Frame 004567/0492 →
Assignment of Assignors Interest.
Mar 20, 1989
From: NL INDUSTRIES, INC.
To: REED TOOL COMPANY, LTD., A CORP. OF NORTHERN IRELAND
Reel/Frame 005031/0750 →
Released by Secured Party Recorded at Reel 4739, Frame 0041
Jun 19, 1989
From: NATWEST USA CREDIT CORP.
To: FARLEY, INC.
Reel/Frame 005221/0044 →
Merger
Jul 9, 1990
From: CAMCO, INCORPORATED, A CORP. OF TX.
To: CAMCO INTERNATIONAL INC., A CORP. OF DE
Reel/Frame 005366/0664 →
Corrective Assignment to Delete the Sixteen Patent Properties Indicated in Schedule "a" Erroneously Recorded in a Security Agreement on July 31, 1987 at Reel 4739 Frames 041-069. (See Record for Details)
Nov 6, 1990
From: FARLEY, INC. (BY CHANGE OF NAME FROM FARLEY METALS, INC.)
To: NATWEST USA CREDIT CORP.
Reel/Frame 005554/0047 →
To Correct a Previously Executed Assignment Dated April 4, 1989, Which Was Recorded on June 9, 1989, at Reel 5221, Frames 0038-0041, Which Erroneously Identified Certain Patents in a Security Agreement. See Record for Details
Dec 6, 1990
From: FARLEY, INC. (BY CHANGE OF NAME FROM FARLEY METALS, INC.)
To: BANK OF NEW YORK, THE
Reel/Frame 006345/0956 →
Merger
Oct 24, 2002
From: CAMCO INTERNATIONAL INC.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 013417/0342 →
Assignment of Assignor's Interest
Nov 22, 2002
From: SCHLUMBERGER TECHNOLOGY CORPORATION
To: REED HYCALOG OPERATING LP
Reel/Frame 013506/0905 →
Change of Name
Apr 7, 2005
From: REED-HYCALOG OPERATING, L.P.
To: REEDHYCALOG, L.P.
Reel/Frame 016026/0020 →