Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6923906 | Apparatus to establish and optimize sedimentation and methane fermentation in primary wastewater ponds | William J. Oswald | 2005-08-02 |
| 6852225 | Method and apparatus to establish and optimize sedimentation and methane fermentation in primary wastewater ponds | William J. Oswald | 2005-02-08 |
| 6635177 | Reclaiming water and usable brine concentrate from domestic sewage | William J. Oswald, Ezio Bracco | 2003-10-21 |