Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4335755 | Coating for pipe | Daniel G. Richlie | 1982-06-22 |
| 4326891 | Crystalline calcium carbonate as a diluent in hydrothermally cured hydraulic cement compositions | — | 1982-04-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4335755 | Coating for pipe | Daniel G. Richlie | 1982-06-22 |
| 4326891 | Crystalline calcium carbonate as a diluent in hydrothermally cured hydraulic cement compositions | — | 1982-04-27 |