IP Library › Assignment 059835/0903
Patent Assignment
Reel/Frame 059835/0903

Change of Name

Recorded: 2022-04-29 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 Assemblies
Application: 17/733,228 →
Publication: US 2022/0356948
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Apr 29, 2022
From: SVRCEK, MATT; PRUDHOMME, JODIE
To: ETAGEN, INC.
Reel/Frame 059712/0021 →
Security Interest Jun 6, 2025
From: MAINSPRING ENERGY, INC.
To: AVENUE VENTURE OPPORTUNITIES FUND II, L.P., AS AGENT
Reel/Frame 071499/0428 →