Patent Assignment
Reel/Frame 031338/0023
Change of Name
Recorded: 2013-09-24
Pages: 2
Assignor
OTIS OILFIELD SERVICES LLC
Executed: 2013-05-28
Assignee
WATSON WELL SOLUTIONS, LLC
1431 125TH AVENUE NW, WATFORD CITY, NORTH DAKOTA, 58854
Covered Property
(1)
Pressure Response Fracture Port Tool for Use in Hydraulic Fracturing Applications
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.