Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D383496 | Handheld clipboard | Polly S. K. Siegel, Eric A. Jensen, Rick H. Kojima, Thomas Overthun, Margaret L. Hetfield | 1997-09-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D383496 | Handheld clipboard | Polly S. K. Siegel, Eric A. Jensen, Rick H. Kojima, Thomas Overthun, Margaret L. Hetfield | 1997-09-09 |