Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8442884 | Transfer of title through intermediary | — | 2013-05-14 |
| 8313329 | Sketching devices having improved geometry | Charles Haberstroh | 2012-11-20 |
| 8057232 | Kit with integral sketching device | Charles Haberstroh | 2011-11-15 |