Patent Assignment
Reel/Frame 009001/0030
Assignment of Assignor's Interest
Recorded: 1998-02-17
Pages: 3
Assignor
LI, ZHIXIN
Executed: 1998-02-06
Assignee
FERROFLUIDICS CORPORATION
40 SIMON STREET, NASHUA, NEW HAMPSHIRE, 03061
Covered Property
(1)
Method and Apparatus for Damping a Crystal Ingot Suspension in a Czochralski Crystal Puller
Patent:
5,797,990 →
Application:
08/605,508 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
May 24, 1999
From: FERROFLUIDICS CORPORATION
To: GENERAL SIGNAL TECHNOLOGY CORPORATION
Reel/Frame 009968/0884 →
Assignment of Assignor's Interest
May 8, 2001
From: GENERAL SIGNAL TECHNOLOGY CORPORATION
To: GSTC DEVELOPMENT CORPORATION
Reel/Frame 011770/0581 →
Merger
Apr 27, 2005
From: GSTC DEVELOPMENT CORPORATION
To: GSLE SUBEO L.L.C.
Reel/Frame 016172/0111 →