H01J 49/40
Time-of-flight spectrometers
Official title: Time-of-flight spectrometers (H01J49/36 takes precedence)
H01J49/40 (Time-of-flight spectrometers) appears on 1,370 US grants and 1,388 published applications in this corpus.
Search patents in H01J- Granted patents
- 1,370
- Published applications
- 1,388
- Assignees
- 399
- Inventors
- 1,601
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 19 | 0 |
| 1998 | 21 | 0 |
| 1999 | 25 | 0 |
| 2000 | 15 | 0 |
| 2001 | 16 | 6 |
| 2002 | 16 | 27 |
| 2003 | 33 | 38 |
| 2004 | 52 | 49 |
| 2005 | 35 | 68 |
| 2006 | 51 | 29 |
| 2007 | 36 | 32 |
| 2008 | 23 | 38 |
| 2009 | 24 | 30 |
| 2010 | 25 | 44 |
| 2011 | 31 | 47 |
| 2012 | 33 | 34 |
| 2013 | 41 | 50 |
| 2014 | 69 | 76 |
| 2015 | 63 | 79 |
| 2016 | 70 | 112 |
| 2017 | 89 | 93 |
| 2018 | 80 | 62 |
| 2019 | 80 | 81 |
| 2020 | 90 | 77 |
| 2021 | 64 | 83 |
| 2022 | 67 | 70 |
| 2023 | 42 | 44 |
| 2024 | 47 | 61 |
| 2025 | 31 | 37 |
| 2026 | 17 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Waveforms in an ion mobility spectrometer29 Sep 2026US 12,748,073 B2Battelle Memorial Institute
- Systems and methods for recovering organic contaminants from semiconducting wafers29 Sep 2026US 12,749,667 B2Elemental Scientific, Inc.
- 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
- Time-of-flight mass spectrometer and time-of-flight mass spectrometry method15 Sep 2026US 12,738,472 B2Shimadzu Corporation
- Space charge reduction in TOF-MS18 Aug 2026US 12,712,173 B2DH Technologies Development Pte. Ltd.
- Method and apparatus8 Oct 2026US 2026/0311986 A1Bruker Switzerland AG
- Beam Homogenization for Trapped Ion Processing with Discrete Ion Packets8 Oct 2026US 2026/0311987 A1DH Technologies Development Pte. Ltd.
- Analytical Apparatus, Analytical System, Display Method, and Program1 Oct 2026US 2026/0302149 A1National Institute of Advanced Industrial Science and Technology
- Mass tagging nucleic acids for quality assurance and control17 Sep 2026US 2026/0275405 A1University of South Alabama
- A Method for Analyzing Deuterium Substitution Rates and a Method for Predicting Deuterium Substitution Rates17 Sep 2026US 2026/0279750 A1LG Chem.Ltd.
Most cited
By later US patents
- Mass spectrometry from surfaces248US 6,204,500 B1Analytica of Branford, Inc. · 2001
- Time-of-flight mass spectrometry analysis of biomolecules184US 5,625,184 APerSeptive Biosystems, Inc. · 1997
- Nanodosimeter based on single ion detection174US 7,081,619 B2Loma Linda University · 2006
- Mass spectrometer system and method for matrix-assisted laser desorption measurements153US 5,498,545 A1996
- Mass spectrometer134US 5,864,137 AGenetrace Systems, Inc. · 1999