Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6183242 | Rotary kiln for forming lightweight aggregate from flyash and sewage sludge | — | 2001-02-06 |
| RE34775 | Lightweight aggregate from flyash and sewage sludge | Timothy M. Nechvatal | 1994-11-01 |
| 5342442 | Lightweight aggregate from flyash and sewage sludge | Timothy M. Nechvatal | 1994-08-30 |
| 5057009 | Lightweight aggregate from flyash and sewage sludge | Timothy M. Nechvatal | 1991-10-15 |
| 4304550 | Apparatus for handling and utilizing system gas in a pyro-processing system | — | 1981-12-08 |
| 4251280 | Process for handling and utilizing system gas in a pyro-processing system | — | 1981-02-17 |
| 4236887 | Method and apparatus for handling and utilizing system off-gas in a pyro-processing system | — | 1980-12-02 |