. ▁Chinese ▁Pat ent ▁No . ▁Z L 0 2 1 1 4 7 9 7 . 3 ▁for ▁a ▁USB ▁W ire less ▁Mode m ▁ ▁South ▁Korean ▁Pat ent ▁No . ▁ 5 8 3 6 2 6 , ▁for ▁a ▁mult if unction ▁sem icon duct or ▁storage ▁device ▁and ▁method ▁for ▁boot ing - up ▁computer ▁host ▁ ▁Singapore an ▁Pat ent ▁No . ▁S G 1 1 9 0 3 8 , ▁for ▁an ▁automatically ▁executing ▁method ▁using ▁sem icon duct or ▁storage ▁devices ▁ ▁Law su its ▁ ▁Intel lect ual - property ▁in fr ing ement ▁is ▁w ides p read ▁in ▁China , ▁and ▁Net ac ▁has ▁taken ▁companies ▁both ▁in ▁and ▁outside ▁of ▁this ▁nation ▁to ▁court ▁in ▁order ▁to ▁protect ▁the ▁mon opol y ▁its ▁pat ents ▁grant . ▁ ▁Comp an ies ▁it ▁has ▁su ed ▁include ▁US - based ▁P N Y ▁Techn ologies , ▁Be ij ing ' s ▁Len ovo ▁and ▁H ua qi ▁Information ▁Digital ▁Technology ▁Co ▁Ltd , ▁Sh en zen ' s ▁F ug u ang hui ▁and ▁X ing zh ida o , ▁Japan - based ▁Sony , ▁and ▁Taiwan ' s ▁A cer ▁and ▁Tai ▁Gu en ▁Enter prise ▁Co . ▁ ▁Its ▁ 2 0 0 6 ▁law suit ▁against ▁P N Y ▁Techn ologies ▁was ▁the ▁first ▁time ▁a ▁Chinese ▁company ▁file d ▁pat ent ▁in fr ing ement ▁charges ▁over se as . ▁ ▁Sh enz hen ▁Co oca a ▁Network