Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4448612 | Method of blackening surfaces of steel parts with wet nitrogen | Chris W. Ebert | 1984-05-15 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4448612 | Method of blackening surfaces of steel parts with wet nitrogen | Chris W. Ebert | 1984-05-15 |