H01J 49/022
Circuit arrangements
Official title: {Circuit arrangements, e.g. for generating deviation currents or voltages (regulating electric or magnetic variables in general, e.g. current, magnetic field G05F); Components associated with high voltage supply (high voltage supply per se H02M)}
H01J49/022 (Circuit arrangements) appears on 371 US grants and 391 published applications in this corpus.
Search patents in H01J- Granted patents
- 371
- Published applications
- 391
- Assignees
- 151
- Inventors
- 647
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 8 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 2 |
| 2005 | 2 | 5 |
| 2006 | 3 | 1 |
| 2007 | 3 | 4 |
| 2008 | 0 | 4 |
| 2009 | 4 | 8 |
| 2010 | 5 | 6 |
| 2011 | 7 | 8 |
| 2012 | 4 | 6 |
| 2013 | 12 | 17 |
| 2014 | 16 | 21 |
| 2015 | 18 | 22 |
| 2016 | 26 | 15 |
| 2017 | 12 | 15 |
| 2018 | 14 | 13 |
| 2019 | 21 | 26 |
| 2020 | 21 | 26 |
| 2021 | 37 | 58 |
| 2022 | 43 | 37 |
| 2023 | 18 | 23 |
| 2024 | 31 | 38 |
| 2025 | 19 | 17 |
| 2026 | 13 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of operating a multipole device22 Sep 2026US 12,744,197 B2Thermo Fisher Scientific (Bremen) GmbH
- High-voltage RF generator for ion optics1 Sep 2026US 12,725,775 B2Thermo Fisher Scientific (Bremen) GmbH
- RF amplitude auto-calibration for mass spectrometry25 Aug 2026US 12,719,038 B2DH Technologies Development Pte. Ltd.
- Systems and techniques for in-source ion separation14 Jul 2026US 12,683,141 B2Thermo Finnigan LLC
- Method of calibrating a mass spectrometer16 Jun 2026US 12,658,417 B2Thermo Fisher Scientific (Bremen) GmbH
- Integrated High Voltage Power Supply and Vacuum Flange for a Mass Spectrometer8 Oct 2026US 2026/0311989 A1DH Technologies Development Pte. Ltd.
- Plasma ion source device with digital energy-level control and ionization control method27 Aug 2026US 2026/0253855 A1Zhejiang University
- Mass-to-Charge Value-based Setting of DC Voltage Magnitudes for an Ion Guide27 Aug 2026US 2026/0253858 A1Thermo Finnigan LLC
- Power Supply Including Amplitude Calibration and Phase Correction for Mass Spectrometry20 Aug 2026US 2026/0245850 A1DH Technologies Development Pte. Ltd.
- DMS SV Automatic Phase Offset Calibration13 Aug 2026US 2026/0235553 A1DH Technologies Development Pte. Ltd.
Most cited
By later US patents
- High voltage waveform generator77US 5,801,379 AMine Safety Appliances Company · 1998
- Programmed electron flux55US 6,255,648 B1Applied Automation, Inc. · 2001
- Mass spectrometer45US 7,919,747 B2Micromass UK Limited · 2011
- High mass ion detection system and method40US 4,835,383 APhrasor Scientific, Inc. · 1989
- Droplet manipulation using gas-phase standing-wave ultrasound fields in MS sources36US 9,514,924 B2Micromass UK Limited · 2016