Patent Act Article 8

Inventions not made for hireWhere an invention, utility model, or design made by an employee has no connection to the course of performing his/her duties, the right to apply for a patent and the patent right for such invention, utility model or design shall be vested in the employee. However, if such invention, utility model or design is made through the utilization of the employer's resources or experiences, the employer may, after paying the employee a reasonable remuneration, exploit the invention, utility model or design concerned in the enterprise.Upon completion of an invention, utility model or design which has no connection to the course of an employee’s performing his/her duties, the employee shall give the employer a written notice regarding such event and shall also inform the employer of the creative process if necessary.If the employer fails to raise any objection to the employee within six (6) months after receiving the employee's written notice under the preceding paragraph, the employer shall not claim that such invention, utility model or design was made by the said employee in the course of performing his/her duties.
中文原文 專利法第8條
受雇人於非職務上所完成之發明、新型或設計,其專利申請權及專利權屬於受雇人。
但其發明、新型或設計係利用雇用人資源或經驗者,雇用人得於支付合理報酬後,於該事業實施其發明、新型或設計。
受雇人完成非職務上之發明、新型或設計,應即以書面通知雇用人,如有必要並應告知創作之過程。
雇用人於前項書面通知到達後六個月內,未向受雇人為反對之表示者,不得主張該發明、新型或設計為職務上發明、新型或設計。

English translation for reference only; the Chinese text prevails. Not legal advice.