Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820325 | Treatment of toxicant-impregnated filter cake | — | 1989-04-11 |
| 4652380 | Method of treating the arsenic containing filter media from phosphoric acid purification | — | 1987-03-24 |
| 4341843 | Refractory coatings | William A. Brainard | 1982-07-27 |
| 4336117 | Refractory coatings and method of producing the same | William A. Brainard | 1982-06-22 |