孙律师:你好!我是一名职高应届毕业生,我从小就有搞发明创造的理想。进入职业高中后,我结合自己的学习专业,利用课余时间,经过近三年苦心研究探索,终于完成了一项小发明,我还奢望着以这项发明去申请国家专利呢。为此,请你从法律的角度谈一谈什么是专利?申请专利的范围有哪些?谢谢!自贡读者:李权 Sun lawyer: Hello! I am a high school graduates, I have had the ideal of creating inventions. After entering vocational high school, I used my spare time after studying for my own professional study. After nearly three years of painstaking research and exploration, I finally completed a small invention. I still hope to apply for a national patent with this invention. To this end, please talk about what is the patent from the legal point of view? What are the scope of the patent application? Thank you! Zigong readers: Li Quan