HSK 3
Zhuānlì bǎohù duì chuàngxīn hěn zhòngyào.
Patent protection is very important for innovation.
HSK 4
Zhèxiàng fāmíng yǐjīng shēnqǐng le zhuānlì.
A patent has been applied for this invention.
HSK 5
Tā yōngyǒu hěnduō zhuānlì.
He owns many patents.