Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11808741 | Low thermal mass GC module | Edgar D. Lee, Nathan L. Porter, Randall W. Waite | 2023-11-07 |
| 11567041 | Low thermal mass GC module | Edgar D. Lee, Nathan L. Porter, Randall W. Waite | 2023-01-31 |
| 11193864 | Devices, systems, and methods for preparing field samples | Nathan L. Porter | 2021-12-07 |
| 11154794 | Sampling pumps and closed loop control of sampling pumps to load traps | Nathan L. Porter, Randal W. Waite, Kenneth D. Nemelka, Chad B. Grant | 2021-10-26 |
| 10794806 | Devices, systems, and methods for preparing field samples | Nathan L. Porter | 2020-10-06 |
| 10502332 | Duckbill valve assemblies and apparatus and methods including same | Benjamin J. Black | 2019-12-10 |
| 9322750 | Needle trap for use with a gas chromatograph-mass spectrometer for field sampling and analysis | Joseph L. Oliphant, Nathan L. Porter | 2016-04-26 |