Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7010991 | Surface particle detector | Daniel Duggan | 2006-03-14 |
| 6888453 | Environmental monitoring system | Daniel Duggan | 2005-05-03 |
| 5526805 | In-line silencer for clean room breathing apparatus | Richard Dryden, Gene J. Sullivan | 1996-06-18 |
| 5253538 | Method and device for quantifying particles on a surface | Robert H. Swick, Gene J. Sullivan, Richard Dryden | 1993-10-19 |