IP Library › Assignment 025700/0199
Patent Assignment
Reel/Frame 025700/0199

Assignment of Assignor's Interest

Recorded: 2011-01-26 Pages: 3
Assignors
SIMPSON, ADAM
Executed: 2010-12-01
MILLER, SHANNON
Executed: 2010-12-01
SVRCEK, MATT
Executed: 2010-12-01
Assignee
ETAGEN, INC.
186 CONSTITUTION DRIVE, MENLO PARK, CALIFORNIA, 94025
Covered Property (1)
High-Efficiency Two-Piston Linear Combustion Engine
Patent: 8,413,617 →
Application: 12/953,277 →
Publication: US 2012/0126544
Related Assignments (4)
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 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 →