Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D628914 | Torpedo level | Charles Dunn Kim, John Christianson | 2010-12-14 |
| D623544 | Box level | Charles Dunn Kim, Ryan Sprouse Dart, John Christianson | 2010-09-14 |
| D618120 | Side brace for central-vial region of a box level | Charles Dunn Kim, John Christianson | 2010-06-22 |