3M Innovative Properties Assigned Patent
Copyright © Targeted News Service, 2014
2014-09-19
Copyright © Targeted News Service, 2014
2014-09-19
ALEXANDRIA, Va., Sept. 19 -- 3M Innovative Properties, St. Paul, Minnesota, has been assigned a patent (8,834,004) developed by four co-inventors for "lighting devices with patterned printing of diffractive extraction features." The co-inventors are David S. Thompson, West Lakeland, Minnesota, Zhaohui Yang, North Oaks, Minnesota, Matthew S. Stay, St. Paul, Minnesota, and Vivian W. Jones, Woodbury, Minnesota.
The patent application was filed on Aug. 13, 2012 (13/572,813). The full- . . .
The patent application was filed on Aug. 13, 2012 (13/572,813). The full- . . .