Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659891 | Multicarrier techniques in bandlimited channels | William D. Hays, Walter C. Roehr, Jr. | 1997-08-19 |
| 5634198 | Nationwide communication system | Walter C. Roehr, Jr., Jai P. Bhagat, Masood Garahi, William D. Hays, David W. Ackerman | 1997-05-27 |