Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5620744 | Method of preventing corrosion in concrete pipe | Fred R. Huege | 1997-04-15 |
| 5616283 | High solids lime as a caustic replacement | Fred R. Huege | 1997-04-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5620744 | Method of preventing corrosion in concrete pipe | Fred R. Huege | 1997-04-15 |
| 5616283 | High solids lime as a caustic replacement | Fred R. Huege | 1997-04-01 |