Shortly after filing a patent infringement lawsuit against Huawei, mobile technology research company InterDigital Inc. announced Monday its deputy general counsel will become the company’s chief legal officer.

Richard Gulino, who has served as deputy general counsel since September, will replace Jannie Lau, who is retiring. Gulino will begin his new role as chief legal officer, general counsel and corporate secretary Jan. 1. He is based at the company’s Wilmington, Delaware, headquarters.