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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
01/18/1994
Application #:
07723170
Filing Dt:
06/28/1991
Inventor:
DANIEL A. CORLISS
Title:
STRUCTURE AND METHOD FOR DIRECT CALIBRATION OF REGISTRATION MEASUREMENT SYSTEMS TO ACTUAL SEMICONDUCTOR WAFER PROCESS TOPOGRAPHY
Assignment: 1
Reel/Frame:
005818/0997Recorded: 09/03/1991Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor:
Exec Dt:
08/07/1991
Assignee:
77 REED ROAD
HUDSON, MASSACHUSETTS 01749
Correspondent:
MICHAEL G. FLETCHER
ARNOLD, WHITE & DURKEE
P.O. BOX 4433
HOUSTON, TX 77210
Assignment: 2
Reel/Frame:
012447/0903Recorded: 01/09/2002Pages: 21
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
12/09/1999
Exec Dt:
06/20/2001
Assignee:
20555 STATE HIGHWAY 249
HOUSTON, TEXAS 77070
Correspondent:
CONLEY, ROSE & TAYON, P.C.
JONATHAN M. HARRIS
P.O. BOX 3267
HOUSTON, TEXAS 77253-3267

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