Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D834726 | Observation tower | William J. Kitchen, Michael A. Kitchen, Douglas H. Austin, Jonathan Sherman | 2018-11-27 |
| D806263 | Tracks for an observation tower | William J. Kitchen, Michael A. Kitchen, Douglas H. Austin, Jonathan Sherman | 2017-12-26 |