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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
01/28/1992
Application #:
07113045
Filing Dt:
10/26/1987
Inventors:
DOUGLAS J. DOORNINK, JOHN C. DALRYMPLE
Title:
METHOD AND APPARATUS FOR HIDDEN SURFACE REMOVAL
Assignment: 1
Reel/Frame:
005863/0210Recorded: 10/01/1991Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors:
Exec Dt:
11/13/1987
Exec Dt:
11/13/1987
Assignee:
4900 S.W. GRIFFITH DRIVE, AN OR CORPORATION
P.O. BOX 500
BEAVERTON, OREGON 97077
Correspondent:
FRANCIS I. GRAY
TEKTRONIX, INC.
P.O. BOX 500 (50-PAT)
BEAVERTON, OR 97077
Assignment: 2
Reel/Frame:
016164/0150Recorded: 01/24/2005Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
01/19/2005
Assignee:
505 E. TRAVIS
SUITE 210
MARSHALL, TEXAS 75670
Correspondent:
TRAVIS GORDON WHITE
MCKOOL SMITH, PC
300 W. 6TH STREET
SUITE 1700
AUSTIN, TX 78701

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