Patents per Year
Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8328903 | Determining effluent concentration profiles and service lives of air purifying respirator cartridges | Michael Parham, Amy Elizabeth Staubs | 2012-12-11 |
| 8097060 | Laminate filter | — | 2012-01-17 |
| 7592178 | Filter integrity tester | Mark Shrewsbury, David K. Friday | 2009-09-22 |
| 7537648 | Filter service life estimator | Christopher J. Karwacki, Gregory W. Peterson | 2009-05-26 |
| 6851938 | Magnetic pumping system | M. Douglas LeVan | 2005-02-08 |