Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9944111 | Method and apparatus for extending and retracting the writing element of a self-retaining writing instrument | — | 2018-04-17 |
| 9061541 | Self-retaining writing instrument | — | 2015-06-23 |
| D708262 | Writing instrument | Ryan H. Chapman | 2014-07-01 |