In a lawsuit filed on March 2, Prowire LLC has accused Apple (1:17-cv-00223) of infringing a single patent (6,137,390) through the manufacture and sale of consumer electronics that contain certain inductors, identifying only the iPad 4 by name. The ‘390 patent generally relates to an inductor having its coil embedded in a particular form of “magnetic resin”. It issued to Industrial Technology Research Institute (ITRI) in October 2000; Prowire’s new complaint is the second filed within roughly two weeks to assert a patent developed at ITRI.