Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12111241 | Pulsed diffusion condensation particle counter | Gregory Stephen Lewis, Steven Russel Spielman | 2024-10-08 |
| 12105002 | Pulsed condensation particle counter | Gregory Stephen Lewis, Steven Russel Spielman | 2024-10-01 |
| 11789166 | Pulse counting coincidence correction based on count rate and measured live time | Gregory Stephen Lewis, Steven Russel Spielman, Mark R. Stolzenberg | 2023-10-17 |
| 11733148 | Volatility-resolved chemical characterization of airborne particles | Gabriel Isaacman-VanWertz, Nathan M. Kreisberg | 2023-08-22 |
| 11305138 | In situ respirator fit testing | Daniel C. Bjorkquist, Arantzazu Eiguren Fernandez, Kenneth Farmer, Melissa Grose, Gregory Stephen Lewis +2 more | 2022-04-19 |
| 11237091 | Humidity conditioning for water-based condensational growth of ultrafine particles | Arantzazu Eiguren Fernandez, Gregory Stephen Lewis, Steven Russel Spielman, Philip Bourgeois | 2022-02-01 |
| 11029240 | Wick moisture sensor for airborne particle condensational growth systems | Steven Russel Spielman, Gregory Stephen Lewis | 2021-06-08 |
| 10914667 | Condensation particle counter false count performance | Sreenath Avula, Richard Remiarz, George John Chancellor, Tyler Anderson, Daniel C. Bjorkquist +4 more | 2021-02-09 |
| 10882018 | Apparatus for sustained super-saturations for condensational growth of particles | Steven Russel Spielman, Gregory Stephen Lewis | 2021-01-05 |
| 10883910 | Coiled system for condensational growth of ultrafine particles | Steven Russel Spielman, Gregory Stephen Lewis | 2021-01-05 |
| 10876145 | Fiber sampler for recovery of bioaerosols and particles | David S. Ensor, Howard Jerome Walls, Karin K. Foarde, Steven Russel Spielman | 2020-12-29 |
| 10767210 | Fiber sampler for recovery of bioaerosols and particles | David S. Ensor, Howard Jerome Walls, Karin K. Foarde, Steven Russel Spielman | 2020-09-08 |
| 10520414 | Condensation particle counter false count performance | Sreenath Avula, Richard Remiarz, George John Chancellor, Tyler Anderson, Daniel C. Bjorkquist +4 more | 2019-12-31 |
| 10502665 | Aerosol collection system and method | Donald K. Milton, Somayeh Youssefi, Gregory Stephen Lewis | 2019-12-10 |
| 10378042 | Fiber sampler for recovery of bioaerosols and particles | David S. Ensor, Howard Jerome Walls, Karin K. Foarde, Steven Russel Spielman | 2019-08-13 |
| 10252237 | Sustained super-saturations for condensational growth of particles | Steven Russel Spielman, Gregory Stephen Lewis | 2019-04-09 |
| 9821263 | Advanced laminar flow water condensation technology for ultrafine particles | Gregory Stephen Lewis, Steven Russel Spielman | 2017-11-21 |
| 9658139 | System and method for the concentrated collection of airborne particles | Gregory Stephen Lewis, Arantzazu Eiguren Fernandez, Frederick R. Quant, Kenneth Farmer | 2017-05-23 |
| 9610531 | Wick wetting for water condensation systems | Steven Russel Spielman, Gregory Stephen Lewis, Nathan M. Kreisberg | 2017-04-04 |
| 9579662 | Condensation-evaporator nanoparticle charger | Steven Russel Spielman, Gregory Stephen Lewis | 2017-02-28 |
| 9395281 | Aerosol mobility imaging for rapid size distribution measurements | Jian Wang, Steven Russel Spielman, Chongai Kuang | 2016-07-19 |
| 9028775 | Growth tube microchip electrophoresis system for monitoring of aerosol composition | Gregory Stephen Lewis, Steven Russel Spielman, Charles S. Henry, Scott Noblitt, Jeffrey Lee Collett, Jr. | 2015-05-12 |
| 8801838 | Advanced laminar flow water condensation technology for ultrafine particles | Gregory Stephen Lewis, Steven Russel Spielman | 2014-08-12 |
| 8459572 | Focusing particle concentrator with application to ultrafine particles | Gregory Stephen Lewis, Steven Russel Spielman | 2013-06-11 |
| 8088627 | On-line gas chromatographic analysis of airborne particles | Allen H. Goldstein | 2012-01-03 |