Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE40846 | Certified facsimile | — | 2009-07-14 |
| 5956154 | Certified facsimile | — | 1999-09-21 |
| 5815555 | Certified telephonic transmissions | — | 1998-09-29 |
| 5809116 | Method and apparatus of certifying a telephonic transmission | — | 1998-09-15 |
| 5566230 | Method of certifying an information content of a telephonic exchange | — | 1996-10-15 |