Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D342965 | Shredding machine for recycling | Patricia Duke | 1994-01-04 |
| D294146 | Fast pass card reader unit | — | 1988-02-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D342965 | Shredding machine for recycling | Patricia Duke | 1994-01-04 |
| D294146 | Fast pass card reader unit | — | 1988-02-09 |