Douglas Carl Engelbutt, the inventor of the first computer mouse, received a patent from the U.S. Patent Office. While working as an engineer at Xerox Park, he invented the computer mouse. On December 9, 1968, computer scientist Engelbutt demonstrated several devices. They have become an integral part of modern computers.

Innovations demonstrated by Engelbutt included mouse-driven graphical user interfaces, video conferencing, and hypertext. Douglas Engelbutt was born on January 30, 1925 in Portland, Oregon, USA. He died on July 2, 2013.