Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6278883 | Communication protocol for a wireless data system | — | 2001-08-21 |
| 6272117 | Digital sensing multi access protocol | Raymond Chin | 2001-08-07 |
| 5923266 | Method for dynamically changing control frames for selective call receiving devices | Zhonghe Wang, Jyh-Han Lin, Douglas I. Ayerst, Gregory L. Cannon, Jheroen Dorenbosch +2 more | 1999-07-13 |
| 5878035 | Method and apparatus for mixing protocols in a radio messaging system | Zhonghe Wang, Jyh-Han Lin, Douglas I. Ayerst, Gregory L. Cannon, Jheroen Dorenbosch +2 more | 1999-03-02 |
| 5740534 | Method for determining available frequencies in selective call receivers | Douglas I. Ayerst, Malik Khan, Morris A. Moore, Leonard E. Nelson | 1998-04-14 |
| 5694454 | Apparatus for message re-transmission on demand | Thomas Casey Hill, Tri T. Dang, Lowell C. Hufferd, III | 1997-12-02 |
| 5600703 | Method and apparatus for remotely retrieving messages intended for an acknowledge-back pager in a selective call communication system | Tri T. Dang, Lowell C. Hufferd III | 1997-02-04 |