Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865702 | Process of electrochemically re-alkalizing reinforced concrete | John Miller | 1989-09-12 |
| 4832803 | Removal of chlorides from concrete | Ole A. Opsahl | 1989-05-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865702 | Process of electrochemically re-alkalizing reinforced concrete | John Miller | 1989-09-12 |
| 4832803 | Removal of chlorides from concrete | Ole A. Opsahl | 1989-05-23 |