| 11311100 |
Double-layer foldable lifting desk with lever type unlocking structure |
— |
2022-04-26 |
| 8852445 |
Methods and apparatus for treating water and wastewater employing a cloth disk filter |
Jeffrey S. Devine, Charles G. Dannemann |
2014-10-07 |
| 8778174 |
Methods and apparatus for treating water and wastewater employing a cloth disk filter |
Jeffrey S. Devine, Charles G. Dannemann |
2014-07-15 |
| 8152998 |
Screenless granular media filters and methods of use |
Jeffrey S. Devine |
2012-04-10 |
| 6790351 |
Vertical filter |
James E. Thompson, Jeffrey S. Devine |
2004-09-14 |
| 6641737 |
Vertical filter |
James E. Thompson, Jeffrey S. Devine |
2003-11-04 |
| 6517712 |
Descending bed filter |
James E. Thompson, Jeffrey S. Devine |
2003-02-11 |
| 6319413 |
Method of filtering liquid using a vertical filter |
James E. Thompson, Jeffrey S. Devine |
2001-11-20 |
| 5730886 |
Continuous self-cleaning filtration unit |
Anthony M. Wachinski, Jaime Bengoechea |
1998-03-24 |
| 5582722 |
Continuous self-cleaning filtration unit |
Anthony M. Wachinski, Jaime Bengoechea |
1996-12-10 |