2002-03 Patents Chemical engineering professor Yoram Cohen was awarded a patent for a ceramic-supported polymer (CSP) pervaporation membrane. The CSP membrane is a new class of hybrid ceramic-polymer membranes for the separation of volatile organics from aqueous and organic mixtures. Tatsuo Itoh, professor of electrical engineering, was jointly awarded a patent for a low-profile cavity-backed slot antenna using a uniplanar compact photonic band-gap substrate. Computer science professor Majid Sarrafzadeh was awarded a patent for a placement method for integrated circuit design using topo-clustering. Jason L. Speyer, mechanical and aerospace engineering professor, was jointly awarded a patent for attitude determination using a global positioning system. Electrical engineering professor John Villasenor was jointly awarded a patent for a motion vector prediction method. Alan Willson, Jr., electrical engineering professor, was jointly awarded a patent for low-power pulse-shaping digital filters. Ming Wu, professor of electrical engineering, was jointly awarded a patent for a method and apparatus for mode locking of external cavity semiconductor lasers with saturable Bragg reflectors enabling a high-power integrated semiconductor laser. Materials science and engineering professor Ya-Hong Xie was awarded a patent for hetero- integration of dissimilar semiconductor materials. Yang Yang, materials science and engineering professor, was awarded a patent for a process for fabricating organic semiconductor devices using ink-jet printing technology and device and system employing same, and another for organic semiconductor devices using ink-jet printing technology and device and system employing same.