Assignment of Assignors Interest.

Recorded: 1989-03-27 Pages: 4

Assignors

HALL, DAVID R.

Executed: 1989-03-14

PIXTON, DAVID S.

Executed: 1989-03-14

XIANG-GUANG, YU

Executed: 1989-03-14

Assignee

NOVATEK, PROVO, UT

UTAH

Covered Property (1)

Down-Hole Mud Actuated Hammer

Patent: 5,396,965 →

Application: 07/299,267 →

Related Assignments (1)

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