H01J 49/027
Detecting image current induced by the movement of charged particles
Official title: {detecting image current induced by the movement of charged particles (H01J49/38 takes precedence)}
H01J49/027 (Detecting image current induced by the movement of charged particles) appears on 90 US grants and 101 published applications in this corpus.
Search patents in H01J- Granted patents
- 90
- Published applications
- 101
- Assignees
- 46
- Inventors
- 135
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 3 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 1 | 4 |
| 2014 | 3 | 6 |
| 2015 | 6 | 1 |
| 2016 | 3 | 4 |
| 2017 | 6 | 4 |
| 2018 | 3 | 2 |
| 2019 | 4 | 7 |
| 2020 | 2 | 5 |
| 2021 | 8 | 10 |
| 2022 | 10 | 11 |
| 2023 | 9 | 10 |
| 2024 | 4 | 13 |
| 2025 | 9 | 6 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Methods for performing charge detection mass spectrometry with temporal resolution1 Sep 2026US 12,725,770 B2Thermo Finnigan LLC
- Radially segmented ion guide and example applications thereof18 Aug 2026US 12,712,171 B2The Trustees of Indiana University
- Mass spectrometer and method30 Jun 2026US 12,671,069 B2Truemass Ltd
- Systems and methods for fourier transform electrostatic ion trap with microchannel plate detector23 Jun 2026US 12,665,179 B2DH Technologies Development Pte. Ltd.
- Mass spectrometer and method1 Oct 2026US 2026/0302150 A1Truemass Ltd
- Methods for determining kinetic energy loss in charge detection mass spectrometry24 Sep 2026US 2026/0290773 A1Thermo Finnigan LLC
- System and method for determining ion charge and frequency in a charge detection mass spectrometer3 Sep 2026US 2026/0260864 A1The Trustees of Indiana University
- Analytical instrument with switchable detection circuitry16 Jul 2026US 2026/0204530 A1Thermo Fisher Scientific (Bremen) GmbH
- Charge filter arrangement and applications thereof9 Apr 2026US 2026/0100343 A1The Trustees of Indiana University
Most cited
By later US patents
- Electrostatic ion trap mass spectrometers117US 6,888,130 B12005
- Fourtier transform quadrupole mass spectrometer and method94US 4,755,670 AFinnigan Corporation · 1988
- Gated charged-particle trap77US 5,880,466 AThe Regents of the University of California · 1999
- Ion trapping74US 6,744,042 B2Yeda Research and Development Co. Ltd. · 2004
- Apparatus and method of determining molecular weight of large molecules53US 5,770,857 AThe Regents of the University of California · 1998