In addition to the expense involved (some NT $ 20,000 for the patent application, plus an annual fee), you have to apply for new cultivar rights within four years of the cultivars hitting the market. Hence, it's challenging to determine whether and when to apply.
他估算，一方面申請品種權要一筆費用（除約 2 萬元台幣的申請費外，每年還需繳交年費），另一方面需趕在開始販售後 4 年內申請（才算是新品種），時間拿捏頗費周章。