A reddit thread from a year ago, says there's only one BB patent left pertaining to phone keyboard with curved keys , expiring in 2027. see https://www.reddit.

A reddit thread from a year ago, says there's only one BB patent left pertaining to phone keyboard with curved keys , expiring in 2027. see https://www.reddit.com/r/blackberry/comments/18zvr4a/comment/kgvjhie/ https://www.reddit.com/r/blackberry/comments/18zvr4a/comment... The expired patent in question from the article has the following abstract: A keyboard comprising a plurality of transparent keys. In use, the keyboard is attached to a device such as a mobile device, to overlie a display screen of the device. One or more images displayed on the display screen are made visible to a user through the keys, which may be pressed by a user. User input is determined by identifying a pressed key, and the image or part thereof visible through the key when pressed. see https://brevets-patents.ic.gc.ca/opic-cipo/cpd/eng/patent/2497122/summary.html https://brevets-patents.ic.gc.ca/opic-cipo/cpd/eng/patent/24...