Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8376084 | Structure having a compactable walkway | Leo L. Castagno, Richard T. Butchart, Schyler C. Porter | 2013-02-19 |
| 8110115 | Mobile water treatment | James V. Kennedy, Stanley Lamar Sanford | 2012-02-07 |
| 7753171 | Structure having a compactable walkway | Leo L. Castagno, Richard T. Butchart, Schyler C. Porter | 2010-07-13 |