Time Sorting of Patent Retrieval in China National Intellectual Property Administration

First of all, you should understand the procedures and processes of patent retrieval in the Intellectual Property Office. And how to operate it!

Patent search knows to mainly search for corresponding keywords; The retrieved patent application numbers are in the wrong order!

Search in chronological order; Wait until all the search results come out! Before and after you calm down, you can sort out some similar or dissenting patents!

!