Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806205 | Process for preparing sheet composites containing crystalline phosphate fibers | Marvin M. Crutchfield | 1989-02-21 |
| 4609433 | Sheet composites containing crystalline phosphate fibers | Marvin M. Crutchfield | 1986-09-02 |
| 4484950 | Composites of sulfur and crystalline phosphate fibers | — | 1984-11-27 |