IP Library › Assignment 061950/0323
Patent Assignment
Reel/Frame 061950/0323

Assignment of Assignor's Interest

Recorded: 2022-11-16 Pages: 4
Assignor
ETAGEN, INC.
Executed: 2020-01-07
Assignee
MAINSPRING ENERGY, INC.
3601 HAVEN AVENUE, MENLO PARK, CALIFORNIA, 94025
Covered Property (1)
Sealing Ring Assemblies Configured for Pressure Locking
Application: 17/988,048 →
Publication: US 2023/0072947
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest Nov 16, 2022
From: SVRCEK, MATT; PRUDHOMME, JODIE
To: ETAGEN, INC.
Reel/Frame 061790/0492 →
Security Interest Jun 6, 2025
From: MAINSPRING ENERGY, INC.
To: AVENUE VENTURE OPPORTUNITIES FUND II, L.P., AS AGENT
Reel/Frame 071499/0428 →