Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653288 | Contaminant remediation, biodegradation and volatilization methods and apparatuses | Jeffery F. Billings | 1997-08-05 |
| 5472294 | Contaminant remediation, biodegradation and volatilization methods and apparatuses | Jeffery F. Billings | 1995-12-05 |
| 5277518 | Contaminant remediation, biodegradation and removel methods and apparatus | Jeffery F. Billings | 1994-01-11 |
| 5221159 | Subsurface contaminant remediation, biodegradation and extraction methods and apparatuses | Jeffery F. Billings | 1993-06-22 |