Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D570112 | Holder for collectibles | John McDowell | 2008-06-03 |
| D568606 | Holder for collectibles | John McDowell | 2008-05-13 |
| D490467 | Interactive quiz cartridge in an open position | Matthew W. Jeffirs, Robert A. Cashatt | 2004-05-25 |
| D481071 | Interactive quiz machine with cartridge in an open position | Matthew W. Jeffirs, Robert A. Cashatt | 2003-10-21 |
| D480108 | Interactive quiz cartridge | Matthew W. Jeffirs, Robert A. Cashatt | 2003-09-30 |
| D480109 | Interactive quiz machine with cartridge | Matthew W. Jeffirs, Robert A. Cashatt | 2003-09-30 |
| D478126 | Interactive quiz machine | Matthew W. Jeffirs, Robert A. Cashatt | 2003-08-05 |