Sales record patent

You asked about the priority of patent right. Alibaba's sales evaluation record is difficult to prove. Because you have to prove that the technical scheme of your product is consistent with the product implementation scheme shown in your sales record. Therefore, even if you have produced and sold it, you can't prove that your technical scheme is open. The best proof that the technical scheme is open is that it has been published in news, media, newspapers, etc., which are well known to the public. , and keep the original data. If it's a photo, it can't be conclusive evidence, and even a fair technical proposal can do it. Therefore, don't think that having a sales record means that your product existed or was made public before the patent. Maybe you do produce the same product, but if there is no public evidence, then the evidence of your so-called sales evaluation is not unique and rigorous. The judicial department only accepted this evidence. But in general, the best way is to produce and sell according to your original plan, and never update or improve it. The general patentee can't prove whether you have produced in advance when he sees that you haven't infringed further. You can only acquiesce to the existing plan. But once you update it, the updated product will definitely form infringement.