Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7187860 | Method and apparatus for detecting localized polarization dependent anomalies on optical transmission lines | Neal S. Bergano, Cleo D. Anderson, William W. Patterson, III | 2007-03-06 |
| 5926263 | Side-tone OTDR for in-service optical cable monitoring | Robert Lynch | 1999-07-20 |
| 4794642 | Call screening in a public telephone station | Mohammad A. Arbabzadah, Bhaskar N. Sanakkayala, S. Devendra K. Verma | 1988-12-27 |
| 4782516 | Fraud prevention in a public telephone station | S Devendra K. Verma | 1988-11-01 |