Direct digital cash system and method

IV Slepinin - US Patent 9,710,808, 2017 - Google Patents
Methods and systems are provided for the exchange of digital cash employing protocols for
various entities to separately certify the validity of the parties, values and transactions while …

Security tool for information exchange

MJ Kurian, SL Cheng - US Patent 11,120,432, 2021 - Google Patents
A system includes a database, a memory, and a processor. The database stores an account
that includes a first, second, and third subaccount. The memory stores a profile specifying a …