Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640319 | Switch control methods and apparatus | Brian George Beuning, Seymour Bloom, Raymond Eugene Bright, Jr., Steven L. Greenspan, Michael J. Morgan +2 more | 1997-06-17 |
| 5109408 | Arrangement for intentionally blocking telephone calls to predefined destination numbers but allowing such blocking to be selectively overridden | Steven L. Greenspan, Timothy Jerome Scale | 1992-04-28 |