Legal analysis: Through different types of patents and the processes they need to go through, we can know how long it takes for enterprises or individuals to apply for patents and obtain patent certificates. First, the application for an invention patent needs to go through the following processes: application, acceptance, formal examination, publication, substantive examination and authorization to issue a trademark certificate. The overall time required is about 3 to 4 years, including 3 to 4 months in the acceptance stage and about 18 months in taking medicine. After formal review, it will enter the release stage until it is finally authorized to release.
Legal basis: Article 440th of the Civil Code of People's Republic of China (PRC). The following rights that the debtor or a third party has the right to dispose of may be pledged: (1) bills of exchange, promissory notes and checks; (2) Bonds and certificates of deposit. (3) Warehouse receipts and bills of lading; (4) Transferable fund shares and equity; (5) Transferable intellectual property rights such as the exclusive right to use a registered trademark, patent right and copyright; (6) Existing and future accounts receivable; (7) Other property rights that can be pledged according to laws and administrative regulations.