Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6978154 | System for interfacing a conventional telephone installation to a wireless telephone network | Stephen Sean Ospalak, Robert E. Blumenthal, David Charles Haw, Hiroaki Okumura | 2005-12-20 |