Patent Assignment
Reel/Frame 005779/0036
Assignment of Assignors Interest.
Recorded: 1991-06-05
Pages: 11
Assignor
DOYLE, EDWARD F.
Executed: 1991-05-16
Assignee
GAS RESEARCH INSTITUTE
8600 WEST BRYN MAWR AVENUE, CHICAGO, ILLINOIS, 60631
Covered Property
(1)
Mass Flow Rate Control System and Method
Patent:
5,202,951 →
Application:
07/710,709 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Sep 3, 2002
From: GAS RESEARCH INSTITUTE
To: VARIDIGM CORPORATION
Reel/Frame 013231/0921 →
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 →