Patent Assignment
Reel/Frame 070629/0139
Change of Name
Recorded: 2025-03-25
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:
18/786,327 →
Publication:
US 2025/0060035
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.