How long does it take to apply for an invention patent and what is the application procedure?

How long does it take to apply for an invention patent and what is the application procedure? Inventions and creations need to apply for patents to be protected by law. However, for most people, applying for an invention patent is a professional and complicated matter. What is the application procedure for this invention patent and how long does it take? Let's learn together. How long does it take to apply for an invention patent? 1. How long does it take to apply for an invention patent? It takes about two and a half years from application to authorization. After obtaining the patent right, the annual fee must be paid according to the regulations; The term of protection of an invention patent is 20 years, counting from the date of application. The invention patent cannot be renewed. 2. What is the application procedure for the invention patent? 1. Original technical data and personal (unit) information provided by the applicant; 2. Entrust a patent agency, sign an agency agreement, and write patent application documents that meet the requirements of the Patent Law; You can search it first if necessary. 3. Submit the patent application documents to the State Patent Office, obtain the patent application number, and pay the patent application fee as required; 4. After preliminary examination, the application for a patent for this invention will be published in the patent bulletin and website 18 months after the date of application; According to the requirements of the applicant, it may also be required to publish it in advance at any time within 15 months from the date of application; 5. Enter the stage of substantive examination (substantive examination): the applicant may file an application for substantive examination with the Patent Office at any time within 3 years from the date of application or after the patent application is made public, and must pay the patent substantive examination fee in accordance with the regulations; 6. After substantive examination, the patent conforms to the practicality, novelty and creativity of the invention, and the patent right is granted, and the patent application maintenance fee, annual fee, printing fee and certificate fee are paid in accordance with the regulations to obtain the invention patent certificate; Authorized invention patents will be published. 7. Where a prior application for a patent for invention is claimed, the relevant information of the prior application shall be provided. Three. What materials should I prepare to apply for the national invention patent 1? Claim: The description of the claimed invention refers to the substantive technical features of the invention. 2. Description: Summarize the invention (within 300 words). 3. Description: Description of the technical field to which the present invention belongs; Explain the background related to the invention; Explain the purpose of the present invention; The technical scheme of the invention is explained in detail; Explain the effect and advantages of this technical scheme; Relevant experiments and data prove its effect and advantages. Specifically, for inventions in the mechanical field, the structural schematic diagram of the product patent should be provided, explaining the structure and shape characteristics of the product, the names and connection relations of the components, and the working principle. For inventions involving the field of electricity, the names of components and the electrical relationship between components shall be provided. For inventions involving the chemical field, the names, preparation methods and technological conditions of specific chemical substances shall be provided. For an invention involving a chemical equipment system, the connection relationship between the equipment shall be provided, and the structural characteristics and connection relationship of the equipment related to the invention shall be specified. Where a pharmaceutical invention is involved, the composition, content, preparation method, clinical or animal experimental methods and experimental data of the drug shall be provided. Inventions involving microbiology and bioengineering should provide certificates for preservation. 4. Brief description of drawings (if necessary) 5. Specific embodiments (examples): The present invention will be described in detail.