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Patent Assignment Abstract of Title

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Total Assignments: 2

Patent #:	6533051	Issue Dt:	03/18/2003	Application #:	09390717	Filing Dt:	09/07/1999
Inventors:	AMARDEEP SINGH, DENNIS CISNEROS, SUJIUAN J. HUANG, QUAN V. NGUYEN
Title:	ROLLER CONE DRILL BIT SHALE DIVERTER

Assignment: 1

Reel/Frame:

010430/0466

Recorded: 11/29/1999

Pages: 3

Conveyance:

ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors:

SINGH, AMARDEEP

Exec Dt:

11/10/1999

CISNEROS, DENNIS

Exec Dt:

11/10/1999

HUANG, SUJIAN J.

Exec Dt:

11/10/1999

NGUYEN, QUAN V.

Exec Dt:

11/10/1999

Assignee:

SMITH INTERNATIONAL, INC.

16740 HARDY STREET

HOUSTON, TEXAS 77032

Correspondent:

ROSENTHAL & OSHA L.L.P.

RICHARD A. FAGIN

700 LOUISIANA, SUITE 4550

HOUSTON, TX 77002

Assignment: 2

Reel/Frame:

011469/0080

Recorded: 01/22/2001

Pages: 4

Conveyance:

ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors:

SINGH, AMARDEEP

Exec Dt:

11/06/2000

CISNEROS, DENNIS

Exec Dt:

11/14/2000

HUANG, SUJIAN J.

Exec Dt:

11/16/2000

NGUYEN, QUAN VAN

Exec Dt:

01/04/2001

Assignee:

SMITH INTERNATIONAL, INC.

16740 HARDY STREET

HOUSTON, TEXAS 77032

Correspondent:

ROSENTHAL & OSHA L.L.P.

RICHARD A. FAGIN

700 LOUISIANA, SUITE 4550

HOUSTON, TX 77002

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