3M Innovative Properties Assigned Patent
Copyright © Targeted News Service, 2014
2014-07-31
Copyright © Targeted News Service, 2014
2014-07-31
ALEXANDRIA, Va., July 31 -- 3M Innovative Properties, St. Paul, Minnesota, has been assigned a patent (8,792,165) developed by four co-inventors for "internally patterned multilayer optical films with multiple birefringent layers." The co-inventors are William Ward Merrill, White Bear Lake, Minnesota, Douglas S. Dunn, Maplewood, Minnesota, Stephen A. Johnson, Woodbury, Minnesota, and David T. Yust, Woodbury, Minnesota.
The patent application was filed on Dec. 22, 2009 (13/139,856) . . .
The patent application was filed on Dec. 22, 2009 (13/139,856) . . .