Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8347747 | Strain energy shuttle apparatus and method | Dan J. Clingman, Robert T. Ruggeri | 2013-01-08 |
| 7516680 | Strain energy shuttle apparatus and method | Dan J. Clingman, Robert T. Ruggeri | 2009-04-14 |