US Patent 11030326 Exchanging user information with other physically proximate users

A wireless face-to-face bilateral communication method between at least two users of a service provider, each having a token device, and at least one having a user-defined profile, comprising: between a sending token device and a receiving token device, transmitting unique electronic transaction tokens between a consenting sending party and a consenting or optionally consenting receiving party wherein said transaction tokens may be used for single use, party-approved after-contact, computer-network facilitated access to each other's profile.