Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11143639 | Integrated column and detector in a module for liquid chromatography | Xiaofeng Xie, Luke Tolley, Paul B. Farnsworth, H. Dennis Tolley | 2021-10-12 |
| 10859545 | Simple equilibrium distribution sampling device for GC-MS calibration | Xiaofeng Xie, Jacolin A. Murray, Jesse A. Contreras, Tai Van Truong, H. Dennis Tolley | 2020-12-08 |
| 10570439 | Sample concentration devices | Keith A. Oberg, Anthony Spence, Ivan Rueda, Mark D. Dobbs | 2020-02-25 |
| 10336881 | Monoliths | Keith A. Oberg, Mark D. Dobbs, Ekaterina Tkatchouk, Scott P. Layne | 2019-07-02 |
| 10060889 | Low-power miniature LED-based UV absorption detector with low detection limits for capillary liquid chromatography | Paul B. Farnsworth, Sonika Sharma, H. Dennis Tolley | 2018-08-28 |
| 9678046 | Gas chromatography using a thermal gradient that is substantially monotonically non-increasing and has a positive second derivative | H. Dennis Tolley, Anzi Wang, Samuel Tolley, Aaron Hawkins | 2017-06-13 |
| 9464969 | Monoliths | Keith A. Oberg, Mark D. Dobbs, Ekaterina Tkatchouk, Scott P. Layne | 2016-10-11 |
| 9053919 | Miniature toroidal radio frequency ion trap mass analyzer | Stephen A. Lammert, Samuel Tolley, Jeffrey L. Jones, Randall W. Waite, Edgar D. Lee | 2015-06-09 |
| 7691263 | Monolithic column technology for liquid chromatography | Binghe Gu | 2010-04-06 |
| 7375320 | Virtual ion trap | Edgar D. Lee, Alan L. Rockwood, Randall W. Waite, Stephen A. Lammert | 2008-05-20 |
| 7227138 | Virtual ion trap | Edgar D. Lee, Alan L. Rockwood, Randall W. Waite, Stephen A. Lammert | 2007-06-05 |
| 7199362 | Cross-flow ion mobility analyzer | Alan L. Rockwood, Edgar D. Lee, Nosa Agbonkonkon | 2007-04-03 |
| 7075070 | Single device for ion mobility and ion trap mass spectrometry | Edgar D. Lee, Alan L. Rockwood, Samuel Tolley | 2006-07-11 |
| 7075064 | System and method for extracting spectra from data produced by a spectrometer | James Oliphant, H. Dennis Tolley, Alan L. Rockwood, Edgar D. Lee | 2006-07-11 |
| 7060987 | Electron ionization source for othogonal acceleration time-of-flight mass spectrometry | Edgar D. Lee, Alan L. Rockwood, Bingfang Yue | 2006-06-13 |
| 6992299 | Method and apparatus for aerodynamic ion focusing | Edgar D. Lee, Alan L. Rockwood, Li Zhou | 2006-01-31 |
| 6586732 | Atmospheric pressure ionization ion mobility spectrometry | David C. Collins | 2003-07-01 |
| 5403898 | Single arm attached cyclodextrin polysiloxanes and use thereof as chiral stationary phases in chromatographic separation of enantiomers | Jerald S. Bradshaw, Bryant E. Rossiter | 1995-04-04 |
| 5268442 | Chiral copolymers with oligosiloxane spacers | Jerald S. Bradshaw, Bryant E. Rossiter, Bryon J. Tarbet, Deborah F. Johnson, Karin E. Markides | 1993-12-07 |
| 5262052 | Polysiloxanes containing pendant cyano substituted biphenyls as stationary phases for chromatographic columns | Bryant E. Rossiter, Jerald S. Bradshaw, Shawn L. Reese, Abdul Malik | 1993-11-16 |
| 5205154 | Apparatus and method for simultaneous supercritical fluid extraction and gas chromatography | Paul B. Farnsworth, Zaiyou Liu | 1993-04-27 |
| 5070240 | Apparatus and methods for trace component analysis | Chung H. Sin | 1991-12-03 |
| 4996277 | Novel oligoethylene oxide-containing alkenes, alkoxysilanes, and polysiloxanes | Jerald S. Bradshaw, Karin E. Markides | 1991-02-26 |
| 4909935 | Chromatographic arylcarboxamide polysiloxanes | Jerald S. Bradshaw, Karin E. Markides | 1990-03-20 |
| 4864033 | Novel liquid crystalline compounds and polymers | Jerald S. Bradshaw, Brian A. Jones, Karin E. Markides | 1989-09-05 |