Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H544 | Impressed current cathodic protection system employing cobalt spinel | Donald L. Caldwell, Ralph W. Parham, Jr. | 1988-11-01 |
RC
Raul A. Castillo
Overall (All Time): #3,962,281 of 4,157,543Top 100%
1
Patents All Time