In fact, there are several situations:
One is the patent of hidden teacup product; One possibility is the technology patent for producing hidden teacups; One is the patent of equipment for producing hidden teacups; Some may be patents that are not authorized at all in the application; There is also pretending to be the patentee without anything.
The above situation is easy to find in the database of the patent office. Among them, the restriction of product patent should be the biggest, because if you have a product patent, no matter what technology or equipment you use, the product you produce falls within my protection scope, and you are an infringing product. Patents on production technology and equipment can be easily bypassed.
The most puzzling thing is that if two or more patentees seem to have authorized patents, this situation can also be found on the website of the Patent Office, because this situation exists in the current patent system in China. But if these two schemes are exactly the same, there must be a Gui Li.
Therefore, the conclusion is that, according to the fact that there is no clear ruling and statement by the judicial organs and competent departments at present, I advise you not to get involved in this muddy water, otherwise it will be easily caught by people and lose everything. Or at least consult the patent office, do a formal search and then make a decision. Of course, you may not do much, but you can fish in troubled waters, make a lot of money and get out safely. In China, the latter situation is more.
Good luck, hehe.