Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D481070 | Curved pen clip | Boyd I. Willat, Robert Portillo | 2003-10-21 |
| D474809 | Pen with curved clip and angular glass tipped bottom | Boyd I. Willat, Robert Portillo, John G. Wong | 2003-05-20 |
| D451549 | Writing instrument grip and body | Boyd I. Willat, Paul Bob Velik, Ted Caligiuri, Rio Di Angelo, Robert Portillo | 2001-12-04 |