Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780356 | Method for producing an inorganic foam structure for use as a durable acoustical panel | Dean L. Putt, John J. Hartman, Jr., Chester W. Hallett | 2004-08-24 |
| 6613424 | Composite structure with foamed cementitious layer | Dean L. Putt, Peter A. Christie, Marsha S. Bischel, Anthony L. Wiker | 2003-09-02 |
| 6443258 | Durable porous article of manufacture and a process to create same | Dean L. Putt, Marsha S. Bischel, Anthony L. Wiker | 2002-09-03 |