The certificate will only be issued once, and the applicant and inventor on the certificate will not change, so if your certificate is lost or the patent is transferred to someone else, no certificate will be issued again.
Many places use certificates to grant subsidies or titles, which means that inventors and applicants published online generally don't believe it. They are only certification certificates, and the certificate says you (a company), so he (the government unit that issues patent application subsidies) will give subsidies to that company (generally, subsidies are higher than the application fee, such as inventions of more than 10,000 to 20,000, utility models of several thousand, and appearance of one or two thousand).
When an enterprise applies for a high-tech enterprise, you have to prove that your technology is high. You should prove that your things are valuable when you apply for the project. You have to have government subsidies and proof. How to prove these? Speak with a patent certificate. Therefore, many enterprises buy patents with a certain purpose (specifically, to buy certificates, to handle the transfer of applicants and the change of inventors after authorization, and to pay the printing fee, the name on the certificate issued is the enterprise that bought patents), which can bring them profits.
If the application for high technology is successful, there will be tens of thousands to hundreds of thousands of subsidies. Subsidies vary from place to place, and there will be tax subsidies. Moreover, it is always easier for high-tech enterprises to talk about business and get contracts when they listen to their names.
Generally speaking, the subsidy for patent application is higher than the application fee. For example, there are more than 10,000 inventions, more than 20,000 utility models and one or two thousand appearances, which means you can make money without spending money.
Moreover, the certificate adds points in terms of professional title evaluation and settlement.
As for the patentee, his profits are easier to understand. You have to bid for my stuff, right?