Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069634 | Lifting system and apparatus for constructing and enclosing wind turbine towers | Tracy Livingston, James Goldhardt, Terry Schrader, James Lott, David Oliphant | 2011-12-06 |
| 4747611 | Curb ascending and descending wheelchair | — | 1988-05-31 |