Assignment of Assignor's Interest

Recorded: 2021-02-12 Pages: 4

Assignor

DUAL GRADIENT SYSTEMS, LLC

Executed: 2021-02-10

Assignee

KRYN PETROLEUM SERVICES LLC

2402 DRS ROAD, RICHMOND, TEXAS, 77406

Covered Property (1)

Drill String Flow Control Valves and Methods

Patent: 8,393,403 →

Application: 12/609,458 →

Publication: US 2010/0044054

Related Assignments (1)

Other recorded transfers of the patent in this record — the chain of ownership.