The plaintiff, Grecia, alleged that McDonald’s infringe certain claims of U.S. Patent No. 8,533,860 (“the ‘860 patent”) and of U.S. Patent No. 8,402,555 (“the ‘555 patent”) through its use of the “tokenization systems” of several credit card companies.
As explained by the district court, Grecia alleged that McDonald’s uses the claimed systems when a McDonald’s customer purchases a McDonald’s food item with a credit card, the credit card company’s server acts as a receipt module by receiving the primary account number (“PAN”) assigned to the credit card. The credit card company’s authentication module authenticates the PAN with the issuer of the credit card. Then the credit card company’s connection module establishes a connection between the credit card company’s payment processor and its token service provider. A token is data that serves as a surrogate for the PAN.) The payment processor then acts as a request module and requests from the token service provider the token associated with the PAN. The payment processor then acts as the second receipt module by receiving the token.) The credit card company then writes the token to the token vault, or branding module, so that when the same credit card is used for subsequent McDonald’s purchases, the token associated with the PAN is available to be cross-referenced.
Continue reading