| 8034237 |
Backwashing filter basket |
Thomas H. Happel |
2011-10-11 |
| 7981283 |
Adjustable filter basket for a storm water drain system |
— |
2011-07-19 |
| 7959799 |
Street curb filter basket system |
Thomas H. Happel |
2011-06-14 |
| 7846327 |
Storm water filter system having a floating skimmer apparatus |
Thomas H. Happel |
2010-12-07 |
| 7827069 |
Method and system for registering potential acquirers of vehicles that are not currently on the market |
Martin T. King, Jerald J. Gnuschke, James Q. Stafford-Fraser |
2010-11-02 |
| 7549820 |
Curb opening filter |
— |
2009-06-23 |
| 7294256 |
Storm water filter system |
Thomas H. Happel |
2007-11-13 |
| 7270747 |
Storm water drain system |
Thomas H. Happel |
2007-09-18 |
| 7153417 |
Floating storm water drain basket |
— |
2006-12-26 |
| 6979148 |
Golf course green storm water filter |
Thomas H. Happel |
2005-12-27 |
| 6869525 |
Storm drain filter system |
— |
2005-03-22 |
| 6797162 |
Catch basin filter for stormwater runoff |
— |
2004-09-28 |
| 6428692 |
In-line storm water drain filter system |
— |
2002-08-06 |
| 6270663 |
Storm drain filter system |
— |
2001-08-07 |