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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
12/20/2016
Application #:
13884538
Filing Dt:
05/09/2013
Publication #:
Pub Dt:
09/12/2013
PCT #:
US1160194
Inventors:
Shilin Chen, James R. Ashby, Robert W. Arfele
Title:
SYSTEM AND METHOD OF CONSTANT DEPTH OF CUT CONTROL OF DRILLING TOOLS
Assignment: 1
Reel/Frame:
027209/0697Recorded: 11/10/2011Pages: 5
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
11/09/2011
Exec Dt:
11/09/2011
Exec Dt:
11/09/2011
Assignee:
10200 BELLAIRE BLVD.
HOUSTON, TEXAS 77072
Correspondent:
PAULA D. HEYMAN
BAKER BOTTS L.L.P.
98 SAN JACINTO BLVD., STE. 1500
AUSTIN, TX 78701
Assignment: 2
Reel/Frame:
030387/0433Recorded: 05/09/2013Pages: 6
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
11/09/2011
Exec Dt:
11/09/2011
Exec Dt:
11/09/2011
Assignee:
10200 BELLAIRE BOULEVARD
HOUSTON, TEXAS 77072
Correspondent:
BAKER BOTTS L.L.P. PATENT DEPARTMENT
98 SAN JACINTO BLVD., SUITE 1500
AUSTIN, TX 78701-4039

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