Patent Assignment
Reel/Frame 010798/0380
Assignment of Assignor's Interest
Recorded: 2000-04-28
Pages: 3
Assignee
GAS RESEARCH INSTITUTE
8600 WEST BRYNE MAWR AVENUE, CHICAGO, ILLINOIS, 60631
Covered Property
(1)
Apparatus for Continuously Variable Speed Electric Motor Applications
Patent:
6,329,783 →
Application:
09/475,687 →
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 →