His design was eventually embraced by commercial manufacturers, who advertise the telescopes as “Dobsonians.” They remain “one of the most popular telescopes on the market,” said Dennis di Cicco, senior editor of Sky & Telescope magazine.
Dobsonian telescopes have made important contributions to astronomy, including the discovery in 1995 of Comet Hale-Bopp, the farthest comet ever discovered by amateurs. One of its namesakes, Tom Bopp, was using a Dobsonian.Alborzian, who had known Dobson since 1968, said he once urged Dobson to patent his design. Dobson refused. “He said, ‘These are gifts to humanity,'” Alborzian recalled. “His goal was to open astronomy to the common man.”
Read the full article here. A related article at Astronomy.com and Sky and Telescope. Here is the announcement on the website for the Sidewalk Astronomers group Dobson founded.