Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069634 | Lifting system and apparatus for constructing and enclosing wind turbine towers | Tracy Livingston, James Goldhardt, Terry Schrader, David Oliphant, Harry Daugherty | 2011-12-06 |
| 7877934 | Lifting system and apparatus for constructing wind turbine towers | Tracy Livingston, Terry Schrader, James Goldhardt | 2011-02-01 |