TY - GEN T1 - Being within the useful arts as a further constitutional requirement for US patent-eligibility / AU - Stern, Richard H., VL - 2009, Vol. 31, No. 1, pages 6-16 CN - K5 LA - eng ID - 24918 KW - Intellectual property KW - Intellectual property KW - Patents KW - Business method patents KW - Patents KW - Propriété intellectuelle TI - Being within the useful arts as a further constitutional requirement for US patent-eligibility / ER -