Advertisement If you purchased anything from a website using a one-click purchase button, you indirectly paid Amazon for that ability, at least up until September 11, 2017 when Amazon’s patent to this technology expired. As a result, one-click purchasing might become the new norm. In 1997, Amazon filed for a business method patent to one-click … Continue reading Have you ever used a one-click ordering process online? Then you indirectly paid Amazon.