| 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 |