Patent Assignment
Reel/Frame 006517/0198
Assignment of Assignors Interest.
Recorded: 1993-04-05
Pages: 3
Assignors
JACOB, STEVEN D.
Executed: 1993-03-26
COOGAN, JAMES J.
Executed: 1993-03-29
PETRAS, STEFAN G.
Executed: 1993-03-26
Assignee
LANDIS & GYR POWERS, INC.
1000 DEERFIELD PARKWAY, BUFFALO GROVE, ILLINOIS, 60015
Covered Property
(1)
Method and Apparatus for Controlling Fume Hood Face Velocity Using Variable by-Pass Resistance
Patent:
5,470,275 →
Application:
08/042,824 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Dec 14, 1998
From: LANDIS & STAEFA, INC.
To: LANDIS & GYR HOLDINGS, INC.
Reel/Frame 009638/0164 →
Merger & Name Change
Dec 14, 1998
From: LANDIS & GYR HOLDINGS; CERBERUS HOLDINGS, INC.
To: SIEMENS BUILDING TECHNOLOGIES, INC.
Reel/Frame 009638/0167 →
Merger
Mar 11, 2010
From: SIEMENS BUILDING TECHNOLOGIES, INC.
To: SIEMENS INDUSTRY, INC.
Reel/Frame 024066/0464 →