Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8034132 | Process and apparatus for transforming waste materials into fuel | Olaf N. Lee | 2011-10-11 |
| 7497392 | Process and apparatus for transforming waste materials into fuel | Olaf N. Lee | 2009-03-03 |
| 5947152 | Check valve and backflow preventer | James F. Martin, Leo W. Fleury, Jr. | 1999-09-07 |
| 5709240 | Check valve and backflow preventer | James F. Martin, Leo W. Fleury, Jr. | 1998-01-20 |