Atari, Inc. he was being put to the side by Bushnell; Bushnell had left him out of several high-level meetings, assigned him to overseeing the manufacturing process but not the design work, and Dabney discovered Bushnell had patented his video circuit concept without him as an inventor. In March 1973, Dabney formally left Atari, selling his portion of the company for . While Dabney would continue to work for Bushnell on other ventures, including Bushnell's Pizza Time Theater, the predecessor to Chuck E. Cheese's, he had a falling out with Bushnell and ultimately left the video game industry. Dabney's contributions towards Atari's
Nolan Bushnell is also one of the founders of Modal VR a company that develops a portable large-scale VR system for enterprises to train e.g. security forces. Nolan is on the advisory board of Anti-AgingGames.com and was a Co-Founder of the company, featuring online memory, concentration, and focus games for healthy people over 35. Bushnell's most recent company is BrainRush, a company that uses video game technology in educational software where he is Founder, CEO and Chairman. The company was venture capital funded in 2012. It is based on the idea that many curriculum lessons can be turned into mini-games. Developers can