Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10753149 | Extendable / retractable ladder | Mitchell I. Kieffer, Nathan L. Schlueter, Matthew J. Decker | 2020-08-25 |
| 10731413 | Foldable ladder | Mitchell I. Kieffer, Nathan L. Schlueter | 2020-08-04 |