Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8820800 | Multi-wall corrugated pipe couplings and methods | Gerald S. Sutton, William V. Shaffer, James B. Goddard, John M. Kurdziel, David J. Kelley | 2014-09-02 |
| 8820801 | Multi-wall corrugated pipe couplings and methods | Gerald S. Sutton, William V. Shaffer, James B. Goddard, John M. Kurdziel, David J. Kelley | 2014-09-02 |