Patent Assignment
Reel/Frame 058143/0355
Assignment of Assignor's Interest
Recorded: 2021-11-17
Pages: 7
Assignors
SVRCEK, MATT
Executed: 2018-08-08
PRUDHOMME, JODIE
Executed: 2018-08-08
DEJONG, JERRY
Executed: 2018-08-07
HASLER, TOM
Executed: 2018-08-08
Assignee
ETAGEN, INC.
3601 HAVEN AVENUE, MENLO PARK, CALIFORNIA, 94025
Covered Property
(1)
Reinforced Sealing Rings
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Nov 17, 2021
From: ETAGEN, INC.
To: MAINSPRING ENERGY, INC.
Reel/Frame 058175/0348 →
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 →