Patent Assignment
Reel/Frame 008551/0995
Assignment of Assignor's Interest
Recorded: 1997-06-10
Pages: 4
Assignor
BOULIA, DONALD J.
Executed: 1997-03-20
Assignee
MATHSOFT, INC.
101 MAIN STREET, CAMBRIDGE, MASSACHUSETTS, 02142
Covered Property
(1)
Extensible Environment for Manipulation and Coupling of Computational Blocks
Application:
60/039,071 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 10, 1997
From: GREENWOOD, DAVID G.
To: MATHSOFT, INC.
Reel/Frame 008552/0284 →
Assignment of Assignor's Interest
Mar 16, 2009
From: MATHSOFT ENGINEERING & EDUCATION, INC.; MATHSOFT CORPORATE HOLDINGS, INC.
To: PARAMETRIC TECHNOLOGY CORPORATION
Reel/Frame 022399/0489 →