| Patent Number |
Title Of Patent |
Date Issued |
| 7341401 |
Subsurface drainage system and drain structure therefor |
March 11, 2008 |
| A subsurface drainage assembly for directing fluid drainage from a surface. The subsurface drainage assembly includes a plurality of drain structure panels linked together in a manner that permits movement of one drain structure panel relative to the adjacent drain structure panel. The |
| 7290958 |
Subsurface drainage system and drain structure therefor |
November 6, 2007 |
| A subsurface drainage assembly for directing fluid drainage from a surface is disclosed. The subsurface drainage assembly includes a plurality of drain structure panels linked together in a manner that permits movement of one drain structure panel relative to the adjacent drain structure |
| 7201538 |
Subsurface drainage system and drain structure therefor |
April 10, 2007 |
| A subsurface drainage assembly for directing fluid drainage from a surface is disclosed. The subsurface drainage assembly includes a plurality of drain structure panels linked together in a manner that permits movement of one drain structure panel relative to the adjacent drain structure |
| 7108454 |
Subsurface drainage system and drain structure therefor |
September 19, 2006 |
| A subsurface drainage assembly for directing fluid drainage from a surface including a plurality of drain structure panels linked together in a manner that permits movement of one drain structure panel relative to the adjacent drain structure panel. The drain structure panels have a |
