Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866109 | Method of making reinforced materials having an improved reinforcing material therein | Billy B. Hibbard, Joe A. Mann, Frans P. P. Koeleveld, Richard E. White, Barry T. Knight +1 more | 1989-09-12 |
| 4859526 | High temperature compressed non-asbestos sheet | Richard Lynn Dibble | 1989-08-22 |
| 4837281 | Method of making reinforced materials having improved reinforcing material therein | Billy B. Hibbard, Joe A. Mann, Frans P. P. Koeleveld, Richard E. White, Barry T. Knight +1 more | 1989-06-06 |