The goal of the patent system is to encourage innovation and then to enhance the development of science and technology by protecting inventions with granting limited exclusive rights for limited times if all patentability requirements are satisfied. The enablement requirement plays an imperative role in the patent system to balance the interests of the public and inventors. Society grants an inventor a limited exclusive right for limited times. In return, the specification of the patent application must disclose sufficient information to teach a person skilled in the art to make and use the invention without undue experimentation. Such disclosure is very valuable to the public. In addiction, a biotechnological invention is more unpredictable than other inventions, such as a mechanical or electrical invention. Under the strict enablement requirement, more detail is required in the biotechnological invention. While these biotechnological inventions are prosperous in the United States, the Federal Circuit continually set forth factors and standards of the enablement requirement with respect to these biotechnological inventions in a series of cases. We will apply the enablement requirement in biotechnology under Taiwan patent law more accurately by understanding and referring to these factors and standards in the Federal Circuit's cases.