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| Number | Title | Issue Date |
| 7820054 | Method for dewatering slurry from construction sites A method of removing solids from the slurry at a construction site located on or near a stream in order to improve the quality of water discharged into the stream by forming treatment zones for receiving slurry, said zones comprising walls of filter bags and floors ... | 10/26/2010 |
| 7449105 | Water filtration and erosion control system An erosion control system and method wherein a fabric filter bag is embedded with and/or filled with a flocculating polymer and is positioned on a sloping soil surface to dam and pond water flowing thereacross for settling of the particles in the water, and as the p... | 11/11/2008 |
