Complex sentence: Dr. Gupta holds patents for Handwriting recognition, and was the Chief Technical Officer for Visual Communications Network, Inc. The creator of the first presentation graphics software for the personal computer, VCN ExecuVision (Software).
Split into simpler sentences: Dr. Gupta holds a patent used in handwriting recognition software, as well as serving as the Chief Technical Officer for Visual Communications Network, Inc. (VCN). VCN created the first presentation graphics program for the personal computer, VCN ExecuVision (Software).