Patent Assignment
Reel/Frame 055888/0822
Change of Name
Recorded: 2021-04-09
Pages: 4
Assignor
ETAGEN, INC.
Executed: 2020-01-07
Assignee
MAINSPRING ENERGY, INC.
3601 HAVEN AVENUE, MENLO PARK, CALIFORNIA, 94025
Covered Property
(1)
Piston Sealing Ring Assembly Having a Gap Cover Element
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Apr 9, 2021
From: PRUDHOMME, JODIE; SVRCEK, MATT
To: ETAGEN, INC.
Reel/Frame 055878/0964 →
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 →