Mealey's (March 2, 2018, 9:26 AM EST) -- WASHINGTON, D.C. — A Delaware federal judge erred in denying an award of attorney fees despite finding that patent infringement claims against Adobe Systems Inc. customers were “exceptional” under Section 285 of the Patent Act, Adobe told the Federal Circuit U.S. Court of Appeals in a Jan. 29 corrected appellant brief (Princeton Digital Image Corporation v. Adobe Systems Inc., Nos. 2017-2597, -2598, -2600, -2602, -2605, -2606, -2609, -2611, -2612, -2627, -2628, -2629, -2630, -2631, -2632, -2633, -2634, 2018-1006, Fed. Cir.)....