Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D819229 | Folding stairs | David King, Thomas B. Murphy | 2018-05-29 |
| 9914397 | Hitch-mounted collapsible stairs for vehicle | David King, Thomas B. Murphy | 2018-03-13 |
| D806625 | Collapsible hitch mounted vehicle stairs | David King, Thomas B. Murphy | 2018-01-02 |