Patent dispute, please help. A company's patented product, and then this company hooked up with another company, and then took that company to court. How to deal with it?

1, no fishing rights protection. This is a legitimate act of obtaining evidence recognized by law, and only in this way can the general obligee obtain conclusive evidence. Otherwise, when he orders, he tells you that you violated his rights and then asks you for compensation. Will you give it to him? You'll just think he's crazy

He ordered it from you. As for who you ordered it from, the obligee has no idea at all, so I can only sue you.

Your behavior is an infringement, but if you can provide evidence of the legal source of the infringing product, you can be exempted from liability for compensation in law.