H01J 49/161
Using photoionisation
Official title: {using photoionisation, e.g. by laser}
H01J49/161 (Using photoionisation) appears on 735 US grants and 835 published applications in this corpus.
Search patents in H01J- Granted patents
- 735
- Published applications
- 835
- Assignees
- 377
- Inventors
- 1,442
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 2 |
| 2002 | 5 | 16 |
| 2003 | 15 | 20 |
| 2004 | 30 | 38 |
| 2005 | 15 | 47 |
| 2006 | 36 | 26 |
| 2007 | 18 | 22 |
| 2008 | 21 | 21 |
| 2009 | 14 | 24 |
| 2010 | 15 | 18 |
| 2011 | 19 | 15 |
| 2012 | 16 | 19 |
| 2013 | 17 | 21 |
| 2014 | 11 | 24 |
| 2015 | 26 | 41 |
| 2016 | 28 | 47 |
| 2017 | 41 | 37 |
| 2018 | 26 | 47 |
| 2019 | 38 | 63 |
| 2020 | 42 | 58 |
| 2021 | 65 | 71 |
| 2022 | 50 | 56 |
| 2023 | 34 | 34 |
| 2024 | 32 | 34 |
| 2025 | 18 | 19 |
| 2026 | 10 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Ribosomal protein judgement method, biological species identification method, and mass spectrometry apparatus8 Sep 2026US 12,730,113 B2Shimadzu Corporation
- Target for use in a laser desorption mass spectrometer14 Jul 2026US 12,683,140 B2Roche Diagnostics Operations, Inc.
- Rapid evaporative ionisation mass spectrometry (“REIMS”) and desorption electrospray ionisation mass spectrometry (“DESI-MS”) analysis of swabs and biopsy samples2 Jun 2026US 12,646,702 B2Micromass UK Limited
- Data processing device and method for the evaluation of mass spectrometry data14 Apr 2026US 12,603,158 B2Thermo Fisher Scientific (Bremen) GmbH
- Analytical Apparatus, Analytical System, Display Method, and Program1 Oct 2026US 2026/0302149 A1National Institute of Advanced Industrial Science and Technology
- Laser ablating laser ionization device and method, and mass spectrometer24 Sep 2026US 2026/0290778 A1Shanghai Chemlab Instrument Co., Ltd
- 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.
- Rapid evaporative ionisation mass spectrometry ("reims") and desorption electrospray ionisation mass spectrometry ("desi-ms") analysis of swabs and biopsy samples10 Sep 2026US 2026/0269206 A1Micromass UK Limited
Most cited
By later US patents
- Method and apparatus for maldi analysis226US 5,777,324 ASequenom, Inc. · 1998
- Process and device for the laser desorption of an analyte molecular ions, especially of biomolecules207US 5,118,937 AFinnigan Mat GmbH · 1992
- Instrument and method for the sequencing of genome207US 5,288,644 AThe Rockefeller University · 1994
- Time-of-flight mass spectrometry analysis of biomolecules184US 5,625,184 APerSeptive Biosystems, Inc. · 1997
- Method and apparatus for MALDI analysis166US 6,111,251 ASequenom, Inc. · 2000