Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334980 | Non-puffing petroleum coke | — | 1982-06-15 |
| 4332856 | Carbon or graphite article and method of making by impregnating with a lignin sulfonate complex | — | 1982-06-01 |
| 4312745 | Non-puffing petroleum coke | Lloyd I. Grindstaff, Mack P. Whittaker | 1982-01-26 |