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Patent Assignment Abstract of Title
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Total Assignments: 4
Patent #:
5666297
Issue Dt:
09/09/1997
Application #:
08242269
Filing Dt:
05/13/1994
Inventors:
HERBERT I. BRITT, AMOL P. JOSHI, VLADIMIR MAHALEC, PETER C. PIELA et al
Title:
PLANT SIMULATION AND OPTIMIZATION SOFTWARE APPARATUS AND METHOD USING DUAL EXECUTION MODELS
Assignment: 1
Reel/Frame:
007054/0298Recorded: 07/15/1994Pages: 5
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
BRITT, HERBERT I.
Exec Dt:
07/08/1994
JOSHI, AMOL P.
Exec Dt:
07/08/1994
MAHALEC, VLADIMIR
Exec Dt:
07/08/1994
PIELA, PETER C.
Exec Dt:
07/08/1994
VENKATARAMAN, SWAMINATHAN
Exec Dt:
07/08/1994
Assignee:
ASPEN TECHNOLOGY, INC.
10 CANAL PARK
CAMBRIDGE, MASSACHUSETTS 02141
Correspondent:
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
MARY LOU WAKIMURA, ESQ.
TWO MILITIA DRIVE
LEXINGTON, MA 02173
Assignment: 2
Reel/Frame:
007976/0001Recorded: 06/12/1996Pages: 15
Conveyance:
PATENT CONDITIONAL ASSIGNMENT AND SECURITY AGREEMENT
Assignor:
ASPEN TECHNOLOGY, INC.
Exec Dt:
02/06/1996
Assignee:
FLEET BANK OF MASSACHUSETTS, N.A.
ATTN: THOMAS W. DAVIES, V.P.
75 STATE STREET
BOSTON, MASSACHUSETTS 02109
Correspondent:
GOODWIN, PROCTER & HOAR
ELIZABETH Z. STAVISKY
EXCHANGE PLACE
53 STATE STREET
BOSTON, MA 02109
Assignment: 3
Reel/Frame:
035190/0794Recorded: 03/12/2015Pages: 6
Conveyance:
CERTIFICATE OF AMENDMENT/ADDRESS CHANGE
Assignor:
ASPEN TECHNOLOGY, INC.
Exec Dt:
11/10/2014
Assignee:
ASPEN TECHNOLOGY, INC.
20 CROSBY DRIVE
BEDFORD, MASSACHUSETTS 01730
Correspondent:
MARY LOU WAKIMURA
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
CONCORD, MA 01742-9133
Assignment: 4
Reel/Frame:
061006/0171Recorded: 07/29/2022Pages: 9
Conveyance:
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor:
ASPEN TECHNOLOGY, INC.
Exec Dt:
05/16/2022
Assignee:
ASPENTECH CORPORATION
20 CROSBY DRIVE
BEDFORD, MASSACHUSETTS 01730
Correspondent:
MARY LOU WAKIMURA
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
530 VIRGINIA ROAD, P.O. BOX 9133
CONCORD, MA 01742-9133

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