Formal examination is a preliminary examination, referred to as preliminary examination, which mainly examines the format of your application documents and some obvious writing errors, such as whether the words in the title, abstract and drawings are clear, and things that do not involve the main content of the invention will be examined. The examiner will issue a notice of correction, and the preliminary examination process will be kept confidential. After the first trial is passed, the patent application will be made public.
After the publication, you can apply for substantive examination, that is, actual examination, which mainly reviews the main contents of the invention in the document, mainly including three characteristics, support, full openness and oneness. , so as to judge whether the patent can be patented, the examiner will issue a notice of examination opinions.