An inventor can establish an actual reduction to practice if it is shown that: (1) the inventor constructed an embodiment or performed a process that met all the limitations of the interference count; and (2) the inventor determined that the invention would work for its intended purpose. Cooper v. Goldfarb, 154 F.3d 1321, 1327, 47 USPQ2d 1896, 1901 (Fed. Cir. 1998). Where an interference count is not limited to an intended purpose or to discovered properties of the claimed compounds, evidence establishing substantial utility for any purpose is sufficient to show reduction to practice. Fujikawa v. Wattanasin, 93 F.3d 1559, 1564, 39 USPQ2d 1895, 1899 (Fed. Cir. 1996). An alternative of the count in this interference is a compound with no limitation as to the intended utility of the compound (e.g., Huang claim 1). In the present circumstances therefore, Huang must establish that the Huang inventors actually made the invention defined by the compound alternative of the count, recognized it for what it was, and knew it would work for some practical utility. Estee Lauder Inc. v. L'Oreal, S.A., 129 F.3d 588, 592, 44 USPQ2d 1610, 1613 (Fed. Cir. 1997). When testing is required to establish utility, there must be some recognition of successful testing for a reduction to practice to have occurred. Estee Lauder Inc. v. L'Oreal, S.A., 129 F.3d at 24Page: Previous 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 NextLast modified: November 3, 2007