Appeal No. 2001-1078 Page 4 Application No. 08/750,910 obviousness. See In re Rijckaert, 9 F.3d 1531, 1532, 28 USPQ2d 1955, 1956 (Fed. Cir. 1993). A prima facie case of obviousness is established by presenting evidence that would have led one of ordinary skill in the art to combine the relevant teachings of the references to arrive at the claimed invention. See In re Fine, 837 F.2d 1071, 1074, 5 USPQ2d 1596, 1598 (Fed. Cir. 1988) and In re Lintner, 458 F.2d 1013, 1016, 173 USPQ 560, 562 (CCPA 1972). Claim 1, the sole independent claim on appeal, reads as follows: A plant cube comprising a block of mineral fibres, the block having a top surface, a bottom surface and four side surfaces, wherein the block comprises a laminated structure formed from a superfolded layer of parallel oriented mineral wool fibres, thereby forming a plurality of sublayers connected by bends in the layer, wherein all the mineral fibers in the sublayers are parallel to each other. Blok's invention relates to a water-absorbing porous product made of water-absorbing mineral fibrous material for the cultivation of plants. The product comprises water-repellent oxygen-storing elements which are able toPage: Previous 1 2 3 4 5 6 7 8 9 10 NextLast modified: November 3, 2007