Patent Assignment
Reel/Frame 012736/0403
Assignment of Assignor's Interest
Recorded: 2002-03-29
Pages: 4
Assignor
KEEFER, BOWIE GORDON
Executed: 2001-11-05
Assignee
QUESTAIR TECHNOLOGIES INC.
6961 RUSSELL AVENUE, BURNABY, B.C. V5J 4R8, CANADA
Covered Property
(1)
Multistage System for Separating Gas by Adsorption
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.