Issued Patents 2019
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D866277 | Blade sharpener | Richard S. Constantine | 2019-11-12 |
| D866278 | Blade sharpener | Richard S. Constantine | 2019-11-12 |
| D866279 | Blade sharpener | Richard S. Constantine | 2019-11-12 |
| D866284 | Multi-tool with blade sharpener | Richard S. Constantine | 2019-11-12 |
| D854392 | Foldable blade sharpener | Richard S. Constantine | 2019-07-23 |
| D850232 | Foldable blade sharpener | Richard S. Constantine | 2019-06-04 |
| D848811 | Blade sharpener | Richard S. Constantine | 2019-05-21 |