Trilateral Project 24.1-Biotechnology 014

A claim is not allowed to refer to the drawings or the tables in the detailed description of the invention when such a reference makes unclear the extent of the invention for which a patent is sought. However, a reference is allowed when it leaves the claimed invention clear and concise. (Implementing Guidelines I-1-2.2.2.1(3))

Practice under 1987-Revised Patent Law, on the other hand, allows such a reference only if it is impossible to define a claim appropriately without referring to the detailed description of the invention or drawings. (Examination Guidelines I-1-3.3.1(11))