Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430313 | Shipping black phosphoric acid | George L. Walker | 1984-02-07 |
| 4411811 | Clarification of black phosphoric acid with phosphoric acid rinse water | George L. Walker | 1983-10-25 |
| 4377561 | Clarification of black phosphoric acid with phosphoric acid rinse water | George L. Walker | 1983-03-22 |