Mingda Wang
20Patents
9h-index
23Co-inventors
75Inventor score
Filing activity: May 19, 1989 → Feb 6, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5714755A | Mass scanning method using an ion trap mass spectrometer | Electricity | 69 | Expired |
| US4931640A | Mass spectrometer with reduced static electric field | Electricity | 65 | Expired |
| US5291017A | Ion trap mass spectrometer method and apparatus for improved sensitivity | Electricity | 56 | Expired |
| US6998622B1 | On-axis electron impact ion source | Electricity | 39 | Expired |
| US5942752A | Higher pressure ion source for two dimensional radio-frequency quadrupole electric field for mass spectrometer | Electricity | 19 | Expired |
| US6723986B2 | Apparatus for manipulation of ions and methods of making apparatus | Electricity | 18 | Expired |
| US5457315A | Method of selective ion trapping for quadrupole ion trap mass spectrometers | Electricity | 16 | Expired |
| US5404011A | MS.sup.n using CID | Electricity | 13 | Expired |
| US8124930B2 | Multipole ion transport apparatus and related methods | Electricity | 11 | Active |
| US5633497A | Surface coating to improve performance of ion trap mass spectrometers | Physics | 8 | Expired |
| US7378648B2 | High-resolution ion isolation utilizing broadband waveform signals | Electricity | 4 | Active |
| US7501623B2 | Two-dimensional electrode constructions for ion processing | Electricity | 4 | Active |
| US7329879B2 | Apparatus for manipulation of ions and methods of making apparatus | Electricity | 4 | Expired |
| US7564029B2 | Sample ionization at above-vacuum pressures | Electricity | 2 | Active |
| US7842918B2 | Chemical structure-insensitive method and apparatus for dissociating ions | Electricity | 2 | Active |
| US7259379B2 | On-axis electron impact ion source | Electricity | 2 | Expired |
| US7183545B2 | Multipole ion mass filter having rotating electric field | Electricity | 2 | Expired |
| US11239746B2 | Two-stage converter and method for starting the same, LLC converter, and application system | Emerging Cross-Sectional Technologies | 0 | Active |
| US10546738B1 | Dielectric coated ion transfer device for mass spectrometry | Electricity | 0 | Active |
| US10176977B2 | Ion source for soft electron ionization and related systems and methods | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.