Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7490756 | Method for issuing an invitation to a show | Alvin S. Guggenheim, III, Hildred C. Guggenheim | 2009-02-17 |
| 7472823 | Method for issuing a promotional ticket to a show | Alvin S. Guggenheim, III, Hildred P. Guggenheim | 2009-01-06 |