IP Library › Assignment 051207/0783
Patent Assignment
Reel/Frame 051207/0783

Assignment of Assignor's Interest

Recorded: 2019-12-06 Pages: 2
Assignors
ROELLE, MATTHEW
Executed: 2016-04-11
GADDA, CHRISTOPHER
Executed: 2016-04-06
Assignee
ETAGEN, INC.
3601 HAVEN AVENUE, MENLO PARK, CALIFORNIA, 94025
Covered Property (1)
Control of Piston Trajectory in a Free-Piston Combustion Engine
Application: 16/553,052 →
Publication: US 2019/0390623
Related Assignments (3)
Other recorded transfers of the patent in this record — the chain of ownership.
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 071675/0697 →