Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4904850 | Laminar electrical heaters | Thomas A. Kridl, Lee M. Middleman | 1990-02-27 |
| 4432824 | Method for internal pipe protection | Paul M. Cook, Richard F. Otte, Lawrence J. White, Harry C. Broyles, Peter L. Brooks | 1984-02-21 |
| 4386629 | Apparatus for internal pipe protection | Paul M. Cook, Richard F. Otte, Lawrence J. White, Harry C. Broyles, Peter L. Brooks | 1983-06-07 |
| 4355664 | Apparatus for internal pipe protection | Paul M. Cook, Richard F. Otte, Lawrence J. White, Harry C. Broyles, Peter L. Brooks | 1982-10-26 |