Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11239746 | Two-stage converter and method for starting the same, LLC converter, and application system | Tao Zhao, Fushuai Zhuang, Xinyu Wang, Jiacai Zhuang, Yuan Zhuang | 2022-02-01 |
| 10546738 | Dielectric coated ion transfer device for mass spectrometry | Maozi Liu, Patrick D. Perkins, Jing Tang | 2020-01-28 |
| 10176977 | Ion source for soft electron ionization and related systems and methods | — | 2019-01-08 |
| 8124930 | Multipole ion transport apparatus and related methods | — | 2012-02-28 |
| 7842918 | Chemical structure-insensitive method and apparatus for dissociating ions | — | 2010-11-30 |
| 7564029 | Sample ionization at above-vacuum pressures | Charles A. Fancher, Felician Muntean, Urs Steiner | 2009-07-21 |
| 7501623 | Two-dimensional electrode constructions for ion processing | Roger Tong, Gregory J. Wells | 2009-03-10 |
| 7378648 | High-resolution ion isolation utilizing broadband waveform signals | Doris Lee, Kenneth R. Newton, Steve Schachterle | 2008-05-27 |
| 7329879 | Apparatus for manipulation of ions and methods of making apparatus | Jeffrey T. Kernan, Edward C. Cirimele, J. Gerson Goldberg, James L. Bertsch | 2008-02-12 |
| 7259379 | On-axis electron impact ion source | Edward C. Cirimele | 2007-08-21 |
| 7183545 | Multipole ion mass filter having rotating electric field | — | 2007-02-27 |
| 6998622 | On-axis electron impact ion source | Edward C. Cirimele | 2006-02-14 |
| 6723986 | Apparatus for manipulation of ions and methods of making apparatus | Jeffrey T. Kernan, Edward C. Cirimele | 2004-04-20 |
| 5942752 | Higher pressure ion source for two dimensional radio-frequency quadrupole electric field for mass spectrometer | — | 1999-08-24 |
| 5714755 | Mass scanning method using an ion trap mass spectrometer | Gregory J. Wells, Edward Marquette | 1998-02-03 |
| 5633497 | Surface coating to improve performance of ion trap mass spectrometers | Robert D. Brittain | 1997-05-27 |
| 5457315 | Method of selective ion trapping for quadrupole ion trap mass spectrometers | Gregory J. Wells | 1995-10-10 |
| 5404011 | MS.sup.n using CID | Gregory J. Wells | 1995-04-04 |
| 5291017 | Ion trap mass spectrometer method and apparatus for improved sensitivity | Edward Marquette | 1994-03-01 |
| 4931640 | Mass spectrometer with reduced static electric field | Alan G. Marshall | 1990-06-05 |