market. However, listed companies upstream and downstream of Taiwan's supply chain have been facing patent infringement … lawsuits in recent years. This research mainly aims to provide investors with investment strategies when companies face patent … positive abnormal returns are generated before and after a company faces patent litigation and the cumulative abnormal rewards …

Patent thickets, a phenomenon of fragmented ownership of overlapping patent rights, hamper firms' commercialization of … patents and thus deliver asset pricing implications. We show that firms with deeper patent thickets are involved in more … patent litigations, launch fewer new products, and become less profitable in the future. These firms are also associated with …