IP Library › Assignment 064523/0524
Patent Assignment
Reel/Frame 064523/0524

Change of Name

Recorded: 2023-08-08 Pages: 4
Assignor
ETAGEN, INC.
Executed: 2020-01-07
Assignee
MAINSPRING ENERGY, INC.
3601 HAVEN AVENUE, MENLO PARK, CALIFORNIA, 94025
Covered Property (1)
Control of Piston Trajectory in a Linear Generator
Application: 18/218,401 →
Publication: US 2024/0125281
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Aug 8, 2023
From: ROELLE, MATTHEW; GADDA, CHRISTOPHER
To: ETAGEN, INC.
Reel/Frame 064523/0414 →
Security Interest Jun 6, 2025
From: MAINSPRING ENERGY, INC.
To: AVENUE VENTURE OPPORTUNITIES FUND II, L.P., AS AGENT
Reel/Frame 071499/0428 →