Patent Assignment
Reel/Frame 020293/0722
Assignment of Assignor's Interest
Recorded: 2007-12-21
Pages: 3
Assignor
HAMROCK, STEVEN J.
Executed: 2007-12-21
Assignee
3M INNOVATIVE PROPERTIES COMPANY
P.O. BOX 33427, ST. PAUL, MINNESOTA, 55133-3427
Covered Property
(1)
Method of Making Durable Polymer Electrolyte Membranes