Patent Assignment
Reel/Frame 022309/0183
Assignment of Assignor's Interest
Recorded: 2009-02-24
Pages: 2
Assignor
GAS RESEARCH INSTITUTE
Executed: 2003-03-26
Assignee
VARIDIGM CORPORATION
3070 RANCHVIEW LANE, PLYMOUTH, MINNESOTA, 55447
Covered Properties
(3)
Control Methods and Apparatus for Gas-Fired Combustors
Patent:
5,590,642 →
Application:
08/378,516 →
Flame Ionization Control Apparatus and Method
Patent:
5,971,745 →
Application:
08/747,777 →
Burner Control
Patent:
6,299,433 →
Application:
09/435,288 →
Related Assignments
(6)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 6, 1995
From: BASSETT, WILLIAM W.; WEBSTER, THOMAS L.; RUSS, ROBERT M.; MERRY, NIR
To: GAS RESEARCH INSTITUTE
Reel/Frame 007383/0007 →
Assignment of Assignor's Interest
Mar 28, 1997
From: BASSETT, WILLIAM W.; BENEDEK, KAREN; CARBONE, PHILIP; SCHMIDT, STEPHAN
To: GAS RESEARCH INSTITUTE
Reel/Frame 008443/0791 →
Assignment of Assignor's Interest
Jan 31, 2000
From: GAUBA, GAUTAM; BENSON, CHARLES EDWARD; THIJSSEN, JOHANNES H.J.; SCHMIDT, STEPHAN ERWIN
To: ARTHUR D. LITTLE, INC.
Reel/Frame 010580/0304 →
Assignment of Assignor's Interest
Jun 4, 2001
From: ARTHUR D. LITTLE, INC.
To: GAS RESEARCH INSTITUTE
Reel/Frame 011863/0720 →
Assignment of Assignor's Interest
Sep 24, 2012
From: VARIDIGM CORPORATION
To: ACACIA RESEARCH GROUP LLC
Reel/Frame 029013/0427 →
Assignment of Assignor's Interest
Sep 24, 2012
From: ACACIA RESEARCH GROUP LLC
To: HVAC MODULATION TECHNOLOGIES LLC
Reel/Frame 029013/0580 →