Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7709786 | Method of operating quadrupoles with added multipole fields to provide mass analysis in islands of stability | Nikolai Konenkov, Xianzhen Zhao | 2010-05-04 |
| 7541579 | Linear quadrupoles with added hexapole fields and method of building and operating same | Nikolai Konenkov, Frank Londry, Chuanfan Ding | 2009-06-02 |
| 7399961 | High throughput ion source with multiple ion sprayers and ion lenses | David Chen, Bradley B. Schneider | 2008-07-15 |
| 7366339 | System and method for detecting cheque fraud | Marcel Levesque | 2008-04-29 |
| 7141789 | Method and apparatus for providing two-dimensional substantially quadrupole fields having selected hexapole components | Chuan-Fan Ding, Frank Londry | 2006-11-28 |
| 7067804 | Atmospheric pressure ion lens for generating a larger and more stable ion flux | David Chen, Bradley B. Schneider | 2006-06-27 |
| 7045797 | Axial ejection with improved geometry for generating a two-dimensional substantially quadrupole field | Mikhail Sudakov, Chuan-Fan Ding | 2006-05-16 |
| 6897438 | Geometry for generating a two-dimensional substantially quadrupole field | Mikhail Soudakov, Chuan-Fan Ding | 2005-05-24 |
| 6833544 | Method and apparatus for multiple stages of mass spectrometry | Jennifer Campbell, Bruce Collings | 2004-12-21 |
| 6191417 | Mass spectrometer including multiple mass analysis stages and method of operation, to give improved resolution | Zhaohui Du, Bruce Collings | 2001-02-20 |
| 6054709 | Method and apparatus for determining the rates of reactions in liquids by mass spectrometry | Lars Konermann, Bruce Collings | 2000-04-25 |
| 5565679 | Method and apparatus for plasma mass analysis with reduced space charge effects | Scott D. Tanner, Lisa Cousins | 1996-10-15 |
| 5381008 | Method of plasma mass analysis with reduced space charge effects | Scott D. Tanner, Lisa Cousins | 1995-01-10 |
| 5248875 | Method for increased resolution in tandem mass spectrometry | Bruce Thomson, Jay Corr, James Hager | 1993-09-28 |
| 5179278 | Multipole inlet system for ion traps | — | 1993-01-12 |
| 4963736 | Mass spectrometer and method and improved ion transmission | John B. French | 1990-10-16 |
| RE33386 | Method and apparatus for sampling a plasma into a vacuum chamber | — | 1990-10-16 |
| 4746794 | Mass analyzer system with reduced drift | John B. French, John E. Fulford, Peter Arrowsmith | 1988-05-24 |
| 4682026 | Method and apparatus having RF biasing for sampling a plasma into a vacuum chamber | — | 1987-07-21 |
| 4501965 | Method and apparatus for sampling a plasma into a vacuum chamber | — | 1985-02-26 |