Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872913 | Apparatus and method to produce foam, and foamed concrete | Harvey R. Dunton | 1989-10-10 |
| 4830505 | Particle wetting process and apparatus | Harvey R. Dunton | 1989-05-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872913 | Apparatus and method to produce foam, and foamed concrete | Harvey R. Dunton | 1989-10-10 |
| 4830505 | Particle wetting process and apparatus | Harvey R. Dunton | 1989-05-16 |