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A. R. Grindl Patents |
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Assignee: A. R. Grindl
Address: Dallas, TX
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5904896 |
Multi-stage zonal air purification system |
May 18, 1999 |
| An air filtration and purification system, particularly adapted for treating contaminated air within a preselected zone of a building interior space, includes a filter and purifier unit comprising first and second stage particle filters, an odor neutralizer comprising an ozone generator, |
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