Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6868145 | Alphanumeric keyboard with telephone dialing capability | — | 2005-03-15 |
| 5912948 | Automatic screening apparatus and method for use with telephone answering devices | Leon Ferber | 1999-06-15 |
| 5354069 | Lottery emulation system | Uri Guttman, Robert A. Piankian, Joseph Scally | 1994-10-11 |
| 4250533 | Security system | — | 1981-02-10 |