Case: Patents/Obviousness (P.T.A.B.)

The Patent Trial and Appeal Board determined that challenged claims of Stratasys Inc.'s patent that describes a 3D printing system are unpatentable as obvious over prior art, in an inter partes review by Shenzhen Tuozhu Technology Co. Ltd. The board determined that the challenged claims are obvious over various combinations of prior art, including prior art that describes three-dimensional printing of an object from modeling material, directed to an additive manufacturing system for printing a 3D part, and that describes use of an adhesive which permits print materials and/or printed parts to be removed or peeled from the print pad ...