What if the plaintiff in a patent infringement case cannot provide a complete chain of evidence?

The plaintiff in a patent infringement case cannot provide a complete chain of evidence. The solution is to adjust the litigation strategy and apply for an extension.

1. Adjust litigation strategy: The plaintiff can adjust litigation strategy according to the situation, such as providing other evidence for insufficient evidence or turning to other legal remedies.

2. Apply for an extension: If the plaintiff needs more time to collect evidence, he can apply for an extension. The court will decide whether to agree to the extension according to the actual situation and give the extension period.