
A couple of years later, microswitch manufacturing business was split from Burgess to form separate Micro Switch Corporation, later acquired by Honeywell. Currently, switches branded by both of them (Burgess and Honeywell) are still present on the market, but after expiration of the original patent almost every manufacturer started to make similar items. Versions made by Omron (usually, the D2F series) are widely used in trackballs and mice, and generally considered to be of decent quality.
Some interesting articles related to this topic:
https://hackaday.com/2017/04/17/microsw ... ing-point/
https://www.controleng.com/articles/hon ... ng-strong/
https://www.ermec.es/en/Burgess
https://sps.honeywell.com/us/en/product ... c-switches
Technical brochures and advertising papers from Micro Switch, Burgess and Honeywell:











Micro Switch Corporation logo registered by USPTO in 1941:
