US Patent 11868989 Mobile wallets and companion smart cards

Methods and systems for augmenting smart card functionality using a companion mobile wallet are disclosed. The mobile wallet can establish communication with the companion smart card which can determine that the mobile wallet and the smart card are companions. The mobile wallet can send supplemental data to the companion smart card to augment the functionality of the smart card. The smart card can establish communication between with a POS device and send the supplemental data to the POS device. The mobile wallet, smart card and POS device can communicate with one another in an on-line mode or using batch processing.