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A helium-filled sun shade for protecting individuals engaged in outdoor activities.

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Assignee: Aqua-Envirotech Mfg., Inc.

Location: Williston, ND
No. of patents: 1

Number	Title	Issue Date
6929753	Coal bed methane wastewater treatment system A coal bed methane wastewater treatment system for efficiently and cost effectively treating wastewater generated from coal bed methane production. The coal bed methane wastewater treatment system includes collecting wastewater into an ozone diffusion tank where ozo...	08/16/2005