What are the writing rules of patent application documents?

What are the writing rules of patent application documents? When filing a patent application with the State Patent Office, the applicant shall also submit a series of application documents, such as the request, specification, abstract and patent claim. So what are the writing rules of these patent application documents? What are the writing rules of patent application documents? (1) Typing or printing the letter of request, the patent claim, the specification, the abstract of the specification, and the text in the appended drawings of the specification and abstract shall be typed or printed. The mathematical formulas and chemical formulas in the above documents can be handwritten according to the drawing method. Unless otherwise specified, other documents can be handwritten, but the font must be neat and shall not be altered. (2) Fonts and specifications All documents shall be in Song style, imitation Song style or regular script, and cursive script or other fonts shall not be used. The word height should be between 3.5 mm and 4.5 mm, and the line spacing should be between 2.5 mm and 3.5 mm. (3) Unless otherwise specified, all documents should be used on one side and vertically. Write horizontally from left to right, not in columns. A document shall not involve more than two patent applications, and a page shall not contain more than two kinds of documents (for example, a page shall not contain both specifications and claims). (4) Each column of the written content document shall be filled in truthfully and in detail, and the same content shall be filled in the same column or in different documents. For example, the address bar should be filled in according to administrative divisions, and the postal code should match the address; The signature or seal of the applicant shall be consistent with the contents filled in the applicant's column. (5) Font color The font color should be black, so as to directly copy a large number of documents by methods suitable for photographic plate making, microfilming and xerography. The handwriting should be clear, firm, indelible and indelible. (six) the page numbers of various documents should be written in Arabic numeral order. The page number should be placed on the top edge of the bottom edge of each page, centered left and right. What are the writing rules of patent application documents?