ALEXANDRIA, Va., May 22 -- 3M Innovative Properties, St. Paul, Minnesota, has been assigned a patent (9,034,489) developed by 11 co-inventors for "hydrophilic coatings, articles, coating compositions and methods." The co-inventors are Naiyong Jing, Woodbury, Minnesota, Zhigang Yu, Shanghai, Xue-hua Chen, Shanghai, Bangwei Xi, Shanghai, Appuswamy Devasenapathi, Singapore, Wei De Liu, Shanghai, George Van Dyke Tiers, St. Paul, Minnesota, Justin A. Riddle, St. Paul, Minnesota, Deivaraj Theivanayaga . . .