H01J 49/145
Using chemical ionisation
Official title: {using chemical ionisation}
H01J49/145 (Using chemical ionisation) appears on 245 US grants and 244 published applications in this corpus.
Search patents in H01J- Granted patents
- 245
- Published applications
- 244
- Assignees
- 130
- Inventors
- 422
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 3 |
| 2002 | 3 | 3 |
| 2003 | 5 | 4 |
| 2004 | 5 | 6 |
| 2005 | 3 | 4 |
| 2006 | 9 | 8 |
| 2007 | 2 | 7 |
| 2008 | 10 | 7 |
| 2009 | 5 | 11 |
| 2010 | 6 | 8 |
| 2011 | 8 | 9 |
| 2012 | 5 | 15 |
| 2013 | 11 | 9 |
| 2014 | 9 | 14 |
| 2015 | 7 | 12 |
| 2016 | 9 | 14 |
| 2017 | 14 | 18 |
| 2018 | 15 | 15 |
| 2019 | 13 | 15 |
| 2020 | 14 | 13 |
| 2021 | 12 | 15 |
| 2022 | 14 | 11 |
| 2023 | 10 | 7 |
| 2024 | 6 | 12 |
| 2025 | 2 | 3 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for production of high yield of ions in RF only confinement field for use in mass spectrometry25 Aug 2026US 12,719,041 B2Quad Mass Corp.
- Magnet positioning system for ion source18 Aug 2026US 12,712,169 B2Thermo Finnigan LLC
- Ion molecule reactor and setup for analyzing complex mixtures23 Jun 2026US 12,665,180 B2Tofwerk AG
- Ion source and mass spectrometer including the same26 May 2026US 12,640,356 B2Hitachi High-Tech Corporation
- Mass spectrometry to identify predictive failure with chemical detection in microelectronic systems17 Mar 2026US 12,580,169 B2Purdue Research Foundation
- Mass spectrometry to identify predictive failure with chemical detection in microelectronic systems13 Aug 2026US 2026/0237622 A1Purdue Research Foundation
- Ion source2 Oct 2025US 2025/0308875 A1Agilent Technologies, Inc.
- Ion Source21 Aug 2025US 2025/0266255 A1Shimadzu Corporation
- Systems and methods for conducting reactions and screening for reaction products23 Jan 2025US 2025/0029827 A1Purdue Research Foundation
- Mass spectrometer for analyzing an analyte sample26 Dec 2024US 2024/0429037 A1Analytik Jena AG
Most cited
By later US patents
- Ionization electrospray apparatus for mass spectrometry105US 5,828,062 AWaters Investments Limited · 1998
- Corona discharge ion source for analytical instruments97US 6,225,623 B1Graseby Dynamics Limited · 2001
- Ion sampling for APPI mass spectrometry91US 6,653,626 B2Agilent Technologies, Inc. · 2003
- Remote reagent chemical ionization source76US 7,095,019 B1Chem-Space Associates, Inc. · 2006
- Method for the ionization of heavy molecules at atmospheric pressure72US 5,663,561 ABruker-Franzen Analytik GmbH · 1997