Intellectual Property Code
Section 78. Process Patents; Burden of Proof . - If the subject matter of a patent is a process for obtaining a product, any identical product shall be presumed to have been obtained through the use of the patented process if the product is new or there is substantial likelihood that the identical product was made by the process and the owner of the patent has been unable despite reasonable efforts, to determine the process actually used. In ordering the defendant to prove that the process to obtain the identical product is different from the patented process, the court shall adopt measures to protect, as far as practicable, his manufacturing and business secrets. (n)