1. How long does it take to patent an invention? 取得一项发明的专利用多长时间?
2. Is the patent of strong support. 是此专利强有力的支撑。
3. When should I apply for a patent if I have an invention? 如果我有一项发明，什么时候适合申请专利呢？
1. a document granting an inventor sole rights to an invention
2. an official document granting a right or privilege v.
1. obtain a patent for
2. grant rights to; grant a patent for
3. make open to sight or notice adj.
1. (of a bodily tube or passageway) open; affording free passage
2. clearly revealed to the mind or the senses or judgment