Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886706 | Fibrous polyacrylonitrile reinforcing mixture for friction product applications, and method of making same | Hughey A. Rush, Billy B. Hibbard, Johnson L. Pursoo, John W. Lindsay, Thomas E. Smith +2 more | 1989-12-12 |
| 4797157 | Amine salts of lignosulfonates | Peter Dilling, Humbert Thomas Dellicolli | 1989-01-10 |