Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7922312 | Compact ink delivery in an ink pen | Paul Mark Haines, Mark A. Devries, Ronald J. Ender | 2011-04-12 |
| 7862138 | Flow control in an ink pen | Paul Mark Haines, Mark A. Devries, Ronald J. Ender | 2011-01-04 |