07268667 is referenced by 41 patents and cites 472 patents.

A RF transaction device is provided, which is operable to store multiple distinct data sets owned by unrelated data set owners, wherein the distinct data sets may include differing formats. The method includes the steps of: adding, by a read/write, a first data set to the RF transaction device, wherein the first data set is owned by a first owner; adding, by the read/write device, a second data set to the RF transaction device, wherein the second data set is owned by a second owner; and storing the first data set and the second data set on the RF transaction device in accordance with an owner defined format. The first and second data sets may each be stored as a Block of Binary. The first and second data sets are associated with first and second owners, respectively, and are configured to be stored independent of each other and in accordance with the particular data set storage protocol.

Title
Systems and methods for providing a RF transaction device operable to store multiple distinct accounts
Application Number
10/708550
Publication Number
7268667 (B2)
Application Date
March 10, 2004
Publication Date
September 11, 2007
Inventor
John R Williamson
Jersey City
NJ, US
Peter D Saunders
Salt Lake City
UT, US
Joshua L Montgomery
Orem
UT, US
David S Bonalle
New Rochelle
NY, US
Michal Bliman
Matawan
NJ, US
Blayn W Beenau
Peoria
AZ, US
Agent
Fitzpatrick Cella Harper & Scinto
Assignee
American Express Travel Related Services Company
NY, US
IPC
G06F 7/00
H04Q 5/22
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