(October 22, 2018, 1:35 PM EDT) -- ALEXANDRIA, Va. — In an Oct. 19 petition for inter partes review filed with the Patent Trial and Appeal Board, Abbott Laboratories asserts that three claims of a patent covering a stent would have been anticipated or rendered obvious by prior art (Abbott Laboratories v. Cardinal Health Switzerland 515 GmbH, No. IPR2019-00098, PTAB)....