Patent Assignment
Reel/Frame 042975/0598
Assignment of Assignor's Interest
Recorded: 2017-07-11
Pages: 2
Assignors
GADDA, CHRISTOPHER
Executed: 2015-01-14
ROELLE, MATTHEW
Executed: 2015-01-14
SIMPSON, ADAM
Executed: 2015-01-14
Assignee
ETAGEN, INC.
186 CONSTITUTION DRIVE, MENLO PARK, CALIFORNIA, 94025
Covered Property
(1)
Energy Storage and Conversion in Free-Piston Combustion Engines
Related Assignments
(5)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest
Jul 9, 2019
From: ETAGEN, INC.
To: TRINITY CAPITAL FUND III, L.P.
Reel/Frame 049704/0976 →
Change of Name
Jan 30, 2020
From: ETAGEN, INC.
To: MAINSPRING ENERGY, INC.
Reel/Frame 051761/0180 →
Security Interest
Jun 6, 2025
From: MAINSPRING ENERGY, INC.
To: AVENUE VENTURE OPPORTUNITIES FUND II, L.P., AS AGENT
Reel/Frame 071499/0428 →
Security Agreement
Jun 18, 2025
From: TRINITY CAPITAL INC.
To: MAINSPRING ENERGY, INC.
Reel/Frame 071675/0669 →
Security Agreement
Jun 18, 2025
From: TRINITY CAPITAL INC.
To: MAINSPRING ENERGY, INC.
Reel/Frame 071675/0697 →