Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D285936 | Push button ball point pen | Brian Booker, Harley Jung | 1986-09-30 |
| D285937 | Push button mechanical pencil | Brian Booker, Harley Jung | 1986-09-30 |
| D279383 | Ball point writing instrument | Thomas W. Hillebrand | 1985-06-25 |