TY - GEN T1 - Litigating obviousness :a new approach for using expert witnesses / AU - Sganga, John B. Jr, VL - 1999 Vol 81 No 3 pages 181-200 ID - 22984 KW - Patent infringement. KW - Trademarks. KW - Patents. KW - OBVIOUSNESS : LEGAL TEST KW - PATENT INVALIDITY : OBVIOUSNESS KW - PATENTS : INFRINGEMENT AND CIVIL AND CRIMINAL SANCTIONS : INFRINGEMENT, PATENT FRAUD TI - Litigating obviousness :a new approach for using expert witnesses / ER -