Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6463139 | Combination pre-paid and calling card | Louis N. Delery, Leonard Matulewski | 2002-10-08 |
| 6385308 | Telephone system and method for personalized announcements | Steven Cohen, A. Helen McGrath, Ronald Nemeth | 2002-05-07 |