Because patents can be divided into invention patents, utility model patents, design patents, service patents, re-announcement patents, defensive announcements, trademarks, technical know-how, etc. Patent documents can also be divided into the above types according to their contents. Patent documents in a broad sense include patent applications, patent specifications, patent announcements, patent legal documents and patent retrieval tools.
Patent specification is the main body of patent literature. It is a detailed technical description of an invention that an individual or enterprise must submit to the Patent Office when applying for a patent. Generally, it consists of three parts: ① Description item. Including patent number, patent application number, application date, publication date, patent classification number, invention name, patent abstract or patent right scope, relevant legal documents, patent applicant, patent inventor, patent owner, etc. There are many and unified descriptions in the patent specification, and each description must be marked with an internationally accepted data identification number (INID). (2) Description of the invention. Is the applicant's description of the technical background, content and implementation of the invention, usually accompanied by illustrations. So as to enable those skilled in the art to reproduce the invention according to the specification. (3) Patent right (also called patent right) is a project that the patent applicant requests the patent office to give legal protection to his invention. After the patent is approved, the patent right has direct legal effect.
Patent Bulletin is a periodical published by the Patent Office on a regular basis (weekly, monthly or quarterly), which publishes newly received or approved patents, generally including an overview of inventions. Patent legal documents include patent law, announcements issued by the patent office and related documents. Patent retrieval tools include patent bulletin, patent index and abstract, patent classification, etc.