1. Find the enterprise name and code in Guo Taian first.
2. Then, go to China National Intellectual Property Administration to search the patents applied by the enterprise one by one.
3. Finally, WIPO, a green patent classification database, was established in China National Intellectual Property Administration, in order to find the relevant patent information more conveniently.
Please note that these steps may take some time and effort, because patent search can be quite complicated, especially when enterprises have a large number of patents. If you need more detailed information, I suggest you contact professionals in Tai 'an or China National Intellectual Property Administration.