Graham having a technical background like yourself do you know...

Graham having a technical background like yourself do you know anything about Xpeds sensors and any qualities they might have over the opposition as Xped have patented sensors so considering there are multiple companies developing these ,Xpeds must have a quality that warrented a patent.?
Just had this rambling conversation with an electrical engineer who went through the ABC of how a sensor works phewww!!! but absolutely no closer to finding out problems they may have with sensors in the IOT market. This could be a un considered quality of Xped