Patent Assignment
Reel/Frame 056574/0096
Assignment of Assignor's Interest
Recorded: 2021-06-17
Pages: 2
Assignee
ETAGEN, INC.
3601 HAVEN AVENUE, MENLO PARK, CALIFORNIA, 94025
Covered Property
(1)
Control of Piston Trajectory in a Linear Generator
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jun 17, 2021
From: ETAGEN, INC.
To: MAINSPRING ENERGY, INC.
Reel/Frame 056615/0184 →
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 071675/0697 →