Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6912448 | Centralized management system for bulk-vending machines utilizing wireless telecommunications technology | — | 2005-06-28 |
| 5369695 | Method of redirecting a telephone call to an alternate destination | Vandana S. Chakravarti, R. Paul Christmann, Steven F. Knittel, Margaret H. Redberg, William T. Shampine +1 more | 1994-11-29 |