Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE35990 | Method and apparatus for disposing of waste material | Ralph M. Greene | 1998-12-15 |
| 5626086 | Method and apparatus for controlling a waste disposal system | — | 1997-05-06 |
| 5425316 | Method and apparatus for controlling a waste disposal system | — | 1995-06-20 |
| 5305697 | Method and apparatus for disposing of waste material | Ralph F. Greene | 1994-04-26 |
| 5203267 | Method and apparatus for disposing of waste material | Ralph F. Greene | 1993-04-20 |
| 4297752 | Convertible furniture | Calvin Dick | 1981-11-03 |