Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647758 | Method and apparatus for verifying integrity of cascade impactors | Virgil A. Marple | 2003-11-18 |
| 6595368 | Pre-separator for inlets of cascade impactors | Virgil A. Marple | 2003-07-22 |
| 6561045 | Sampler for eliminating particle-related artifacts for flue gas measurement | Benjamin Y. H. Liu, Virgil A. Marple, Francisco J. Romay | 2003-05-13 |
| 6543301 | Impactor nozzle plate | Virgil A. Marple | 2003-04-08 |
| 6520673 | Mixing devices for sample recovery from a USP induction port or a pre-separator | Virgil A. Marple | 2003-02-18 |