How do enterprises apply for product patents?

The examination process of invention patent is as follows: filing an application-notification of acceptance-payment of application fee-preliminary examination-notification of conformity-publication within 0/8 months from the date of filing-filing a request for actual examination, payment of actual examination fee-substantive examination (notification of opinions-statement of opinions, which may go back and forth many times)-authorization notice-payment of fees-issuance of certificates. It went well up there. If there are various changes in the review, the whole process will also change accordingly. Of course, you can also submit a "pre-disclosure request" and a "substantive examination request" at the same time, and pay the actual examination fee, and make it public about 6 months after the application date, and enter the substantive examination procedure.