How to use Thomson Reuters's patent database?

First find the drug you want to see, open the drug information, and then look at the patent information contained in the drug. The characteristic of this database is that patents have been sorted out for you, classified according to patent types, and classified in various drug information, and compound and crystal patents can be clearly seen. But everyone makes mistakes, and there may be some problems in classification, but the difference is not big and the error rate is low.