Dr. Genda Chen, the Robert W. Abbett Distinguished Chair in Civil Engineering at Missouri S&T, has been issued a patent for “Miniature 3D Position-to-Optical Displacement Sensor.” Other inventors on the patent include Drs. Jie Gao, a former S&T faculty member, and Chuanrui Guo, an S&T alumnus who earned a Ph.D. in civil engineering.