Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4967800 | Secondary confinement pipe having segments with interlocking rib and groove joints and coextruded sealant layers #4 | Kenton Gearhart | 1990-11-06 |
| 4911628 | Triwall siding apparatus | Kenton Gearhart, Cliff Hawkes | 1990-03-27 |