Patent Assignment
Reel/Frame 013383/0981
Assignment of Assignor's Interest
Recorded: 2002-10-09
Pages: 2
Assignee
CLEARWATER, INC.
5605 GRAND AVENUE, PITTSBURGH, PENNSYLVANIA, 15225
Covered Property
(1)
Invert emulsion drilling fluid and process
Application:
10/267,728 →
Publication:
US 2003/0092580
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.