Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6735456 | Power-saving mode for portable communication devices | David A. Cathey, David Zimlich | 2004-05-11 |
| 6201977 | Power-saving mode for portable communication devices | David A. Cathey, David Zimlich | 2001-03-13 |