Brief introduction of patent hooligans

Patent hooligans, also known as patent cockroaches and patent sharks, refer to companies that have no substantive business and mainly rely on taking the initiative to initiate patent infringement lawsuits to survive. Because there is no physical business, it is also called NPE (non-practicing entity) internationally. Intelligent enterprise, Interdigital, Acacai, etc. Are famous among them. Patent war is a common business activity of 123. 1993 The United States uses patent cockroaches or patent hooligans (English: Patent Troll) to describe companies that initiate patent infringement lawsuits.