Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6084967 | Radio telecommunication device and method of authenticating a user with a voice authentication token | Timothy Gerard Hall, William Chunhung Yip | 2000-07-04 |
| 6084968 | Security token and method for wireless applications | Timothy Gerard Hall, Douglas A. Hardy | 2000-07-04 |
| 5903603 | Modem training apparatus and method | William Yip, Timothy Gerard Hall | 1999-05-11 |
| 5579394 | Clear channel interface module and method therefor | William B. Waldron, Jr., Terrel W. Sandberg | 1996-11-26 |
| 5524134 | Telecommunications security module | David T. Gustafson, Michael A. Savage, Joseph Kish, III, Bruce A. Fette | 1996-06-04 |
| 5506889 | Digital voice privacy apparatus and method | David T. Gustafson, Shirley Lee, James B. Piket | 1996-04-09 |
| 5504802 | Communication system apparatus for transmitting and receiving data having a radio wireline interface | William Chunhung Yip, Timothy Gerard Hall | 1996-04-02 |
| D359960 | Clip-on earpiece for a portable handset telephone | Frederick Y. Cho, Robert A. Cook | 1995-07-04 |
| 5208853 | Method and apparatus for usage protection of data files using split key and unique variable | Peter J. Armbruster | 1993-05-04 |
| 5130231 | Blood plasma test device including a semipermeable membrane made of an expanded hydrophobic material that has been treated with a surfactant | Ernest C. Adams, William E. Woenke | 1992-07-14 |
| 4839296 | Blood plasma test method | Ernest C. Adams, William E. Woenker | 1989-06-13 |