Is patent retrieval a complicated matter in China?

Patent retrieval can be simple or complex, depending on the demand. For example, searching whether a new product can apply for a patent is simply to find out the closest patent through search and make a comparative analysis to judge; If it is complicated, you can make a patent layout: compare the existing patent technology, what are its shortcomings or defects, the development trend of technology, the patents of related companies, etc. , and then get the product research direction, and apply for patent layout, forming patent barriers.