Covered Property (1)

Related Assignments (9)

Other recorded transfers of the patent in this record — the chain of ownership.

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 →

Assignment of Assignors Interest. Jul 5, 1990

From: NL INDUSTRIES, INC.

To: CAMCO, INCORPORATED, A CORP. OF TX

Reel/Frame 005370/0475 →

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 →