Is it necessary to indicate the patent number on the product or product sample, or do they have their own advantages and disadvantages?

In fact, in Taiwan Province Bay or other places, when claiming patent infringement, it is a better way to let others know in advance that you have such a patent, which is to mark the product like this. Of course, you can also not bid or send a warning letter.

In China, there is no requirement for bidding, but marking is the right of the patentee, that is to say, bidding can be done or not. If it is bidding, it is mainly used for warning and publicity. However, we should also consider the cost, and pay attention to the timely revocation of the mark after the patent expires or expires.