Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8852445 | Methods and apparatus for treating water and wastewater employing a cloth disk filter | Yongming Xia, Charles G. Dannemann | 2014-10-07 |
| 8778174 | Methods and apparatus for treating water and wastewater employing a cloth disk filter | Yongming Xia, Charles G. Dannemann | 2014-07-15 |
| 8152998 | Screenless granular media filters and methods of use | Yongming Xia | 2012-04-10 |
| 7410584 | Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane | — | 2008-08-12 |
| 7279100 | Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane | — | 2007-10-09 |
| 7025888 | Floating decanter | James E. Thompson, Michael Combs | 2006-04-11 |
| 6790351 | Vertical filter | Yongming Xia, James E. Thompson | 2004-09-14 |
| 6641737 | Vertical filter | Yongming Xia, James E. Thompson | 2003-11-04 |
| 6517712 | Descending bed filter | Yongming Xia, James E. Thompson | 2003-02-11 |
| 6319413 | Method of filtering liquid using a vertical filter | Yongming Xia, James E. Thompson | 2001-11-20 |