Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11085861 | Apparatus for real-time size-distributed measurement of aerosol mass concentration | Modi Chen, Lin Li, Virgil A. Marple, Amir A. Naqwi, Daryl L. Roberts +1 more | 2021-08-10 |
| 9895707 | Method and apparatus for generating monodisperse aerosols | Hongxu Duan, Amir A. Naqwi, Benjamin Y. H. Liu | 2018-02-20 |
| 9764333 | Electrical ionizer for aerosol charge conditioning and measurement | William D. Dick, Benjamin Y. H. Liu | 2017-09-19 |
| 9768005 | Electrospray ionizer for mass spectrometry of aerosol particles | Siqin He, Chris Hogan, Lin Li, Benjamin Y. H. Liu, Amir A. Naqwi | 2017-09-19 |
| 9541488 | Particle sampling and measurement in the ambient air | Benjamin Y. H. Liu, Virgil A. Marple, Lin Li | 2017-01-10 |
| 8711338 | Apparatus for counting particles in a gas | Benjamin Y. H. Liu, Thuc M. Dinh, William D. Dick, Aaron Michael Collins | 2014-04-29 |
| 8603247 | Apparatus for counting particles in a gas | Benjamin Y. H. Liu, Thuc M. Dinh, William D. Dick, Aaron Michael Collins | 2013-12-10 |
| 8465791 | Method for counting particles in a gas | Benjamin Y. H. Liu, Thuc M. Dinh, William D. Dick, Aaron Michael Collins | 2013-06-18 |
| 7830510 | Apparatus for high-accuracy fiber counting in air | Benjamin Y. H. Liu, William D. Dick, Mark J. Battista, Pedro Lilienfeld | 2010-11-09 |
| 6561045 | Sampler for eliminating particle-related artifacts for flue gas measurement | Benjamin Y. H. Liu, Daryl L. Roberts, Virgil A. Marple | 2003-05-13 |