Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12123535 | Expandable pipe including a liner for restoring a conduit | Clinton Edward Llewellyn, Alfred G. Hering, Bowdie J. Isanhart | 2024-10-22 |
| 11698070 | Grouting material delivery and application system | Clinton Edward Llewellyn, Alfred G. Hering | 2023-07-11 |
| 11204125 | Expandable pipe including a liner for restoring a conduit | Clinton Edward Llewellyn, Alfred G. Hering, Bowdie J. Isanhart | 2021-12-21 |
| 10578240 | Expandable pipe including a liner for restoring a conduit | Clinton Edward Llewellyn, Alfred G. Hering, Bowdie J. Isanhart | 2020-03-03 |