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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
06/12/2001
Application #:
09236147
Filing Dt:
01/22/1999
Inventors:
PETER CARIVEAU, ROBERT SLAUGHTER, ZHIGANG FANG
Title:
EARTH-BORING BIT HAVING COBALT/TUNGSTEN CARBIDE INSERTS
Assignment: 1
Reel/Frame:
009916/0739Recorded: 04/26/1999Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
04/06/1999
Exec Dt:
04/06/1999
Exec Dt:
03/24/1999
Assignee:
16740 HARDY STREET
HOUSTON, TEXAS 77032
Correspondent:
ROSENTHAL & OSHA L.L.P.
JOANTHAN P. OSHA
700 LOUISIANA STREET, SUITE 4550
HOUSTON, TX 77002
Assignment: 2
Reel/Frame:
025178/0273Recorded: 10/22/2010Pages: 4
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
08/26/2010
Assignee:
SE-811 81
SANDVIKEN, SWEDEN
Correspondent:
JEFFREY S. BERGMAN
909 FANNIN ST
SUITE 3500
HOUSTON, TX 77010

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