| 10055735 |
Delayed transit fare assessment |
Ayman Hammad, Khalid El-Awady |
2018-08-21 |
| 9704087 |
Apparatus and method to electromagnetically shield portable consumer devices |
Ayman Hammad |
2017-07-11 |
| 9256875 |
Processing transactions of different payment devices of the same issuer account |
Ayman Hammad, Khalid El-Awady |
2016-02-09 |
| 8973818 |
Processing transactions of different payment devices of the same issuer account |
Ayman Hammad, Khalid El-Awady |
2015-03-10 |
| 8827156 |
Mobile payment device |
Ayman Hammad |
2014-09-09 |
| 8825517 |
On-line authorization in access environment |
Ayman Hammad, Khalid El-Awady, Patrick Faith, Mark Carlson |
2014-09-02 |
| 8746556 |
Open system account remote validation for access |
Ayman Hammad, Khalid El-Awady |
2014-06-10 |
| 8733663 |
Mobile phone containing contactless payment card used in transit fare collection |
Ayman Hammad, Brian Triplett |
2014-05-27 |
| 8688554 |
Bank issued contactless payment card used in transit fare collection |
Ayman Hammad, Brian Triplett |
2014-04-01 |
| 8523069 |
Mobile transit fare payment |
Ayman Hammad |
2013-09-03 |
| 8448852 |
Open system account remote validation for access |
Ayman Hammad, Khalid El-Awady |
2013-05-28 |
| 8427317 |
Apparatus and method to electromagnetically shield portable consumer devices |
Ayman Hammad |
2013-04-23 |
| 8412640 |
Signature based negative list for off line payment device validation |
Ayman Hammad, William Alexander Thaw, Christian Aabye |
2013-04-02 |
| 8407082 |
Aggregation of validated transactions for settlement |
Khalid El-Awady |
2013-03-26 |
| 8376227 |
Smart sign mobile transit fare payment |
Ayman Hammad |
2013-02-19 |
| 8256666 |
Processing transactions of different payment devices of the same issuer account |
Ayman Hammad, Khalid El-Awady |
2012-09-04 |
| 8145191 |
Apparatus and method for preventing wireless interrogation of phones |
Ayman Hammad |
2012-03-27 |
| 8118223 |
Smart sign mobile transit fare payment |
Ayman Hammad |
2012-02-21 |
| 7809652 |
Signature based negative list for off line payment device validation |
Ayman Hammad, William Alexander Thaw, Christian Aabye |
2010-10-05 |
| 7567920 |
On-line authorization in access environment |
Ayman Hammad, Khalid El-Awady, Patrick Faith, Mark Carlson |
2009-07-28 |
| 7527208 |
Bank issued contactless payment card used in transit fare collection |
Ayman Hammad, Brian Triplett |
2009-05-05 |
| 7522905 |
Apparatus and method for preventing wireless interrogation of portable consumer devices |
Ayman Hammad |
2009-04-21 |
| 7482925 |
Apparatus and method to electromagnetically shield portable consumer devices |
Ayman Hammad |
2009-01-27 |
| 7227449 |
Multiple protocol smart card communication device |
Walter C. Bonneau, Jr., Tom Vilhelmsen, Carlos Ribeiro, Stefan Rousseau |
2007-06-05 |
| 6577229 |
Multiple protocol smart card communication device |
Walter C. Bonneau, Jr., Tom Vilhelmsen, Carlos Ribeiro, Stefan Rousseau |
2003-06-10 |