Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9671044 | Linear pipe recovery/lay tensioners and method of using same | Patrick K. Alloway, Kevin L. Preston | 2017-06-06 |
| 8821069 | Linear pipe recovery/lay tensioners and methods of using same | Patrick K. Alloway, Kevin L. Preston | 2014-09-02 |
| 7815032 | Pipe roller assembly | Kevin L. Preston, H. Paul Reinhardt, Jr. | 2010-10-19 |
| 4347029 | Pipe transfer system | John P. Latimer, Robert M. Donaldson, Michael A. Cross, Harold MacPhaiden, Henry Schauer +1 more | 1982-08-31 |