Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6641722 | System for removing silicone oil from waste water treatment plant sludge | Amy Rene Freshour, Stephen Lan-Sun Hung, Bang M. Kim, Alan Frederick North, Don Royall Houston | 2003-11-04 | $50,256,000 |
| 6319406 | System and method for removing silicone oil from waste water treatment plant sludge | Amy Rene Freshour, Stephen Lan-Sun Hung, Bang M. Kim, Alan Frederick North, Don Royall Houston | 2001-11-20 | $211,126,000 |