Filed: January 31, 1983 Research, Development, Design and Testing in the Fields of Measurement Equipment, Optical Components and Lasers, and Computers… Owned by:VTI, Inc. Serial Number:73411663
Filed: October 26, 1992 non-destructive measuring and testing equipment for detecting microscopic defects in semiconductors and optical materials… Owned by:VTI, Inc. Serial Number:74325191
Filed: October 26, 1992 electronic and optical apparatus for non-destructive mapping of microscopic subsurface defects in semiconductors and optical… Owned by:VTI, Inc. Serial Number:74325192