What is the difference between choosing the remedies in Article 45 and Article 76 of the Patent Law?

The difference between choosing Article 45 or Article 76 of the patent lies in the different objects of protection. Article 45 of the Patent Law stipulates that any unit or individual may request the Patent Reexamination Board to declare the patent right invalid from the date when the patent administrative department of the State Council announces the grant of the patent right, and the declared invalid patent may be rejected, while Article 76 of the Patent Law introduces the patent linking system.