H01J 49/428
Applying a notched broadband signal
Official title: {Applying a notched broadband signal}
H01J49/428 (Applying a notched broadband signal) appears on 38 US grants and 26 published applications in this corpus.
Search patents in H01J- Granted patents
- 38
- Published applications
- 26
- Assignees
- 24
- Inventors
- 54
- Latest grant
- 3 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 2 |
| 2003 | 2 | 3 |
| 2004 | 2 | 0 |
| 2005 | 2 | 3 |
| 2006 | 3 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 2 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 3 |
| 2016 | 0 | 3 |
| 2017 | 2 | 0 |
| 2018 | 2 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Systems and methods for scaling injection waveform amplitude during ion isolation21 Aug 2018US 10,056,240 B2Thermo Finnigan LLC
- Systems and methods for ion isolation using a dual waveform14 Nov 2017US 9,818,595 B2Thermo Finnigan LLC
- Mass spectrometer having parallel precursor ion isolation1 Oct 2026US 2026/0298873 A1Micromass UK Limited
- Logical operations in mass spectrometry2 Dec 2021US 2021/0375612 A1Purdue Research Foundation
- Logical operations in mass spectrometry14 Jan 2021US 2021/0013023 A1Purdue Research Foundation
- Systems and Methods for Scaling Injection Waveform Amplitude During Ion Isolation10 May 2018US 2018/0130649 A1Thermo Finnigan LLC
- Systems and Methods for Ion Isolation Using a Dual Waveform17 Nov 2016US 2016/0336163 A1Thermo Finnigan LLC
Most cited
By later US patents
- Mass spectrometry method using notch filter59US 5,134,286 ATeledyne CME · 1992
- Method and apparatus for ejecting unwanted ions in an ion trap mass spectrometer44US 5,324,939 AFinnigan Corporation · 1994
- Use of notched broadband waveforms in a linear ion trap36US 6,815,673 B2MDS Inc. · 2004
- Frequency modulated selected ion species isolation in a quadrupole ion trap28US 5,517,025 A1996
- Frequency modulated selected ion species isolation in a quadrupole ion trap22US 5,521,380 A1996