What does patent targeted screening mean?

Patent directional screening is actually patent screening, which can be divided into technical factors, market factors, legal factors and other factors that affect the importance of patents, and these factors include various influencing factors respectively. Specifically, patent screening can be conducted from the perspectives of (1) cited frequency, (2) number of patents in the same family, (3) opinions of enterprises and experts, (4) scope of protection, (5) disputes between applicants and inventors, (6) litigation patents, and (7) key nodes of technical routes.