Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D417537 | Composting device | Howard F. Livingston, Thomas R. Hecht | 1999-12-07 |
| 5018672 | Organic material reduction apparatus | Thomas R. Hecht, Howard F. Livingston | 1991-05-28 |