TY - GEN T1 - Patent eligibility of signal claims / AU - Kunin, Stephen G., AU - Lytle, Bradley D. VL - Nov/Dec 2007, Vol 89, No 11/12, pages 877-886 CN - K16 ID - 24649 KW - Patent laws and legislation KW - Trademarks KW - Trademarks. KW - Patents. KW - Claims KW - Patents TI - Patent eligibility of signal claims / ER -