Issued Patents 2011
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8086478 | Method and system for managing conflicting calendar entries | Yen-Fu Chen, Keith R. Walker | 2011-12-27 |
| 8041024 | Method and system for telephone number change notification and tracking | Yen-Fu Chen, Keith R. Walker | 2011-10-18 |
| 8014512 | Method and system for user interaction within a queue | Yen-Fu Chen, Keith R. Walker | 2011-09-06 |
| 8014752 | Automatic wireless utilization of cellular telephone devices | Yen-Fu Chen, John Hans Handy-Bosma, Keith R. Walker | 2011-09-06 |
| 8000458 | Method and system for verifying incoming telephone numbers | Yen-Fu Chen, Keith R. Walker | 2011-08-16 |
| 7881701 | Method and system for verifying telephone numbers | Yen-Fu Chen, Keith R. Walker | 2011-02-01 |
| 7877083 | Method and system for verifying telephone numbers across service providers | Yen-Fu Chen, Keith R. Walker | 2011-01-25 |