Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9642168 | Mobile phone related indirect communication system and method | Pak Kay Yuen | 2017-05-02 |
| 9544925 | Mobile phone related indirect communication system and method | Pak Kay Yuen | 2017-01-10 |
| 9270799 | Using indirect communication to provide a solution to use international dialing convention and incorporating phone numbers for non-phone devices | Pak Kay Yuen | 2016-02-23 |
| 8503431 | Mobile phone related indirect communication system and method | Pak Kay Yuen | 2013-08-06 |