Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11156445 | Tape measure | John Levisohn | 2021-10-26 |
| 8869872 | Forming a mold for steel casting | Thomas Callahan | 2014-10-28 |
| 8839843 | Forming a mold for steel casting | Thomas Callahan | 2014-09-23 |
| 8839844 | Forming a mold for steel casting | Thomas Callahan | 2014-09-23 |
| 8813810 | Forming a mold for steel casting | Thomas Callahan | 2014-08-26 |
| 8813811 | Forming a mold for steel casting | Thomas Callahan | 2014-08-26 |