H01J 49/16
Using surface ionisation
Official title: using surface ionisation, e.g. field-, thermionic- or photo-emission
H01J49/16 (Using surface ionisation) appears on 1,884 US grants and 2,122 published applications in this corpus.
Search patents in H01J- Granted patents
- 1,884
- Published applications
- 2,122
- Assignees
- 725
- Inventors
- 3,102
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 13 | 0 |
| 1995 | 13 | 0 |
| 1996 | 16 | 0 |
| 1997 | 15 | 0 |
| 1998 | 18 | 0 |
| 1999 | 23 | 0 |
| 2000 | 21 | 0 |
| 2001 | 24 | 17 |
| 2002 | 24 | 48 |
| 2003 | 41 | 56 |
| 2004 | 70 | 76 |
| 2005 | 37 | 89 |
| 2006 | 68 | 62 |
| 2007 | 45 | 60 |
| 2008 | 50 | 57 |
| 2009 | 29 | 53 |
| 2010 | 45 | 52 |
| 2011 | 48 | 61 |
| 2012 | 46 | 60 |
| 2013 | 59 | 64 |
| 2014 | 62 | 85 |
| 2015 | 78 | 116 |
| 2016 | 85 | 110 |
| 2017 | 99 | 96 |
| 2018 | 76 | 101 |
| 2019 | 101 | 135 |
| 2020 | 101 | 128 |
| 2021 | 116 | 157 |
| 2022 | 105 | 119 |
| 2023 | 95 | 114 |
| 2024 | 76 | 96 |
| 2025 | 69 | 64 |
| 2026 | 34 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Volumetric measurement of micro droplets6 Oct 2026US 12,752,294 B2DH Technologies Development Pte. Ltd.
- Systems and methods for performing a check of a differential mobility spectrometer6 Oct 2026US 12,754,166 B2DH Technologies Development Pte. Ltd.
- Exhaust flow boosting for sampling probe for use in mass spectrometry systems and methods6 Oct 2026US 12,755,951 B2DH Technologies Development Pte. Ltd.
- System and method for sampling22 Sep 2026US 12,744,195 B2Helsingin Yliopisto
- Time of flight mass spectrometer control unit applying a dynamic potential different between at least two electrodes of an ion gate15 Sep 2026US 12,738,471 B2Kratos Analytical Limited
- Method for charge calibration of cdms measurements of charged particles8 Oct 2026US 2026/0311980 A1The Trustees of Indiana University
- Electrospray device8 Oct 2026US 2026/0311988 A1Micromass UK Limited
- Analytical Apparatus, Analytical System, Display Method, and Program1 Oct 2026US 2026/0302149 A1National Institute of Advanced Industrial Science and Technology
- Sample support and method for manufacturing sample support24 Sep 2026US 2026/0290775 A1Hamamatsu Photonics K.K.
- Laser ablating laser ionization device and method, and mass spectrometer24 Sep 2026US 2026/0290778 A1Shanghai Chemlab Instrument Co., Ltd
Most cited
By later US patents
- Microscale fluid handling system662US 5,872,010 ANortheastern University · 1999
- Material transport method and apparatus254US 6,110,343 ALockheed Martin Energy Research Corporation · 2000
- Method and apparatus for maldi analysis226US 5,777,324 ASequenom, Inc. · 1998
- Process and device for the laser desorption of an analyte molecular ions, especially of biomolecules207US 5,118,937 AFinnigan Mat GmbH · 1992
- Instrument and method for the sequencing of genome207US 5,288,644 AThe Rockefeller University · 1994