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| Number | Title | Issue Date |
| 7381380 | Plasma based trace metal removal apparatus A system and method for the removal of metals such as mercury from a gas stream. The method involves contacting a gas stream containing the target metals with reactive chemical species generated in a plasma device. The metal to be removed is chemically converted int... | 06/03/2008 |
| 7156959 | Plasma based trace metal removal apparatus and method A system and method for the removal of metals such as mercury from a gas stream. The method involves contacting a gas stream containing the target metals with reactive chemical species generated in a plasma device. The metal to be removed is chemically converted int... | 01/02/2007 |
