How to fill in the start and end dates of patents when applying for professional titles?

Fill in according to the specific situation. When applying for a professional title, the starting and ending date of the patent should be filled in according to the specific situation. If the patent has been authorized or remains valid, the starting and ending time shall be the date of patent application and the expiration date of patent validity. If you are applying for a patent, the start and end time should be the date of the patent application and the current date.