Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656494 | Biofilter with modular trays | Bruce Singleton | 1997-08-12 |
| 5595910 | Biofilter with modular trays | Bruce Singleton | 1997-01-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656494 | Biofilter with modular trays | Bruce Singleton | 1997-08-12 |
| 5595910 | Biofilter with modular trays | Bruce Singleton | 1997-01-21 |