Amex Files Patent for Blockchain System to Match Images of Receipts With Stored Records

Financial services giant American Express (Amex) has filed a patent for a blockchain-based system to capture and transmit the image of a receipt, according to a U.S. Patent and Trademark Office (USPTO) patent filing published Nov. 13. The patent applicant is listed as American Express Travel Related Services Co., Inc., the company’s travel subsidiary. The new filing, titled “Linking digital images with related records,” includes a new method for receiving, recording and transmitting the image of a receipt. The filing describes how the system lets a user with a mobile…