Issued Patents All Time
Showing 51–75 of 88 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7491930 | Hooked differential mobility spectrometry apparatus and method therefore | Alexandre A. Shvartsburg, Keqi Tang, Yehia M. Ibrahim | 2009-02-17 |
| 7491341 | Method of making tapered capillary tips with constant inner diameters | Ryan T. Kelly, Jason S. Page, Keqi Tang | 2009-02-17 |
| 7449683 | Method and apparatus for high-order differential mobility separations | Alexandre A. Shvartsburg, Gordon A. Anderson | 2008-11-11 |
| 7351964 | Ion funnel with extended mass range and reduced conductance limit aperture | Aleksey Tolmachev | 2008-04-01 |
| 7339166 | Interface and process for enhanced transmission of non-circular ion beams between stages at unequal pressure | Keqi Tang, Alexandre A. Shvartsburg | 2008-03-04 |
| 7170053 | Method and apparatus for ion mobility spectrometry with alignment of dipole direction (IMS-ADD) | Alexandre A. Shvartsburg, Keqi Tang | 2007-01-30 |
| 7148474 | Device for two-dimensional gas-phase separation and characterization of ion mixtures | Keqi Tang, Alexandre A. Shvartsburg | 2006-12-12 |
| 7136759 | Method for enhanced accuracy in predicting peptides using liquid separations or chromatography | Lars J. Kangas, Kenneth J. Auberry, Gordon A. Anderson | 2006-11-14 |
| 6979816 | Multi-source ion funnel | Keqi Tang, Mikhail Belov, Aleksey Tolmachev, Harold R. Udseth | 2005-12-27 |
| 6967325 | High performance ion mobility spectrometry using hourglass electrodynamic funnel and internal ion funnel | Keqi Tang, Alexandre A. Shvartsburg | 2005-11-22 |
| 6831274 | Method and apparatus for multispray emitter for mass spectrometry | Keqi Tang, Yuehe Lin | 2004-12-14 |
| 6818890 | High performance ion mobility spectrometry using hourglass electrodynamic funnel and internal ion funnel | Keqi Tang, Alexandre A. Shvartsburg | 2004-11-16 |
| 6803565 | Ionization source utilizing a multi-capillary inlet and method of operation | Taeman Kim, Harold R. Udseth | 2004-10-12 |
| 6787760 | Method for increasing the dynamic range of mass spectrometers | Mikhail Belov, Harold R. Udseth | 2004-09-07 |
| 6629040 | Isotope distribution encoded tags for protein identification | David R. Goodlett, James Bruce, Beate Rist, Ruedi Aebersold | 2003-09-30 |
| 6608302 | Method for calibrating a Fourier transform ion cyclotron resonance mass spectrometer | Christophe Masselon, Aleksey Tolmachev | 2003-08-19 |
| 6583408 | Ionization source utilizing a jet disturber in combination with an ion funnel and method of operation | Taeman Kim, Keqi Tang, Harold R. Udseth | 2003-06-24 |
| 6498340 | Method for calibrating mass spectrometers | Gordon A. Anderson, Michael D. Brands, James Bruce, Ljiljana Pasa-Tolic | 2002-12-24 |
| 6187190 | Apparatus for molecular weight separation | Chuanliang Liu | 2001-02-13 |
| 6107628 | Method and apparatus for directing ions and other charged particles generated at near atmospheric pressures into a region under vacuum | Scott A. Shaffer | 2000-08-22 |
| 5993633 | Capillary electrophoresis electrospray ionization mass spectrometry interface | Joanne C. Severs | 1999-11-30 |
| 5954959 | Microdialysis unit for molecular weight separation | Chuanliang Liu | 1999-09-21 |
| 5545304 | Ion current detector for high pressure ion sources for monitoring separations | Jon Wahl, Steven A. Hofstadler | 1996-08-13 |
| 5423964 | Combined electrophoresis-electrospray interface and method | Harold R. Udseth, Charles J. Barinaga | 1995-06-13 |
| RE34757 | Combined electrophoresis-electrospray interface and method | Harold R. Udseth, Jose A. Olivares | 1994-10-18 |