Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6457270 | Universal emergency sign | Willfred Goldschmidt, Kurt P. Kowal, Jeff Mullally, Irving Schaffer | 2002-10-01 |
| D445138 | Universal emergency sign | Willfred Goldschmidt, Kurt P. Kowal, Jeff Mullally, Irving Schaffer | 2001-07-17 |