The U.S. Postal Service is eyeing blockchain as part of a system for establishing digital trust, newly published patent documents indicate.
New patent filings from Mastercard show how the credit card giant is looking at blockchain as a possible means for easing payment settlement times.
E-commerce giant Amazon has registered three cryptocurrency-related web domains, online records show.
Technology giant Xerox wants to patent a way to securely revise electronic documents that uses blockchain, public records show.