Patent Assignment
Reel/Frame 005911/0644
Assignment of Assignors Interest.
Recorded: 1991-10-29
Pages: 3
Assignors
BARNES, MICHAEL S.
Executed: 1991-10-28
COULTAS, DENNIS K.
Executed: 1991-10-28
FORSTER, JOHN C.
Executed: 1991-10-28
KELLER, JOHN H.
Executed: 1991-10-28
Assignee
Covered Property
(1)
Ceramic Electrostatic Wafer Chuck
Patent:
5,207,437 →
Application:
07/784,291 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 9, 2001
From: INTERNATIONAL BUSINESS MACHINES CORPORATION
To: DORSEY GAGE CO., INC.
Reel/Frame 011722/0579 →
Assignment of Assignor's Interest
Jan 3, 2012
From: PRAXAIR SURFACE TECHNOLOGIES, INC.
To: PRAXAIR S.T. TECHNOLOGY, INC.
Reel/Frame 027468/0512 →
Assignment of Assignor's Interest
May 15, 2012
From: PRAXAIR S.T. TECHNOLOGY, INC.
To: FM INDUSTRIES, INC.
Reel/Frame 028214/0615 →