@techreport{weko_54966_1, author = "Chen-YuanLiu and Huang-CuangLin and Chung-HanYu", title = "Patent Analysis : International Patent Classification and File Index & F-term Classification", year = "2007", institution = "Tung Nan University of Technology Taipei Taiwan R.O.C., Tung Nan University of Technology Taipei Taiwan R.O.C., Huafan University Taipei Taiwan R.O.C", number = "95(2007-CH-076)", month = "sep" }