G01N 27/62
Investigating or analysing materials by the use of electric, electrochemical, or magnetic
Official title: by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
G01N27/62 (Investigating or analysing materials by the use of electric, electrochemical, or magnetic) appears on 2,289 US grants and 2,384 published applications in this corpus.
Search patents in G01N- Granted patents
- 2,289
- Published applications
- 2,384
- Assignees
- 828
- Inventors
- 3,588
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 18 | 0 |
| 1978 | 18 | 0 |
| 1979 | 16 | 0 |
| 1980 | 15 | 0 |
| 1981 | 17 | 0 |
| 1982 | 12 | 0 |
| 1983 | 14 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 13 | 0 |
| 1987 | 9 | 0 |
| 1988 | 12 | 0 |
| 1989 | 16 | 0 |
| 1990 | 7 | 0 |
| 1991 | 14 | 0 |
| 1992 | 15 | 0 |
| 1993 | 16 | 0 |
| 1994 | 18 | 0 |
| 1995 | 21 | 0 |
| 1996 | 18 | 0 |
| 1997 | 9 | 0 |
| 1998 | 21 | 0 |
| 1999 | 15 | 0 |
| 2000 | 22 | 0 |
| 2001 | 15 | 3 |
| 2002 | 11 | 14 |
| 2003 | 24 | 53 |
| 2004 | 49 | 37 |
| 2005 | 21 | 59 |
| 2006 | 47 | 55 |
| 2007 | 41 | 41 |
| 2008 | 41 | 46 |
| 2009 | 38 | 93 |
| 2010 | 44 | 67 |
| 2011 | 53 | 78 |
| 2012 | 60 | 69 |
| 2013 | 74 | 87 |
| 2014 | 86 | 115 |
| 2015 | 99 | 124 |
| 2016 | 99 | 111 |
| 2017 | 112 | 147 |
| 2018 | 121 | 125 |
| 2019 | 136 | 153 |
| 2020 | 131 | 158 |
| 2021 | 122 | 164 |
| 2022 | 153 | 155 |
| 2023 | 97 | 122 |
| 2024 | 104 | 123 |
| 2025 | 92 | 112 |
| 2026 | 48 | 73 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for performing a check of a differential mobility spectrometer6 Oct 2026US 12,754,166 B2DH Technologies Development Pte. Ltd.
- Automated systems and methods for separating compounds6 Oct 2026US 12,755,950 B2DH Technologies Development Pte. Ltd.
- Waveforms in an ion mobility spectrometer29 Sep 2026US 12,748,073 B2Battelle Memorial Institute
- Differential trapped ion mobility filter15 Sep 2026US 12,736,502 B2
- Method for detecting and treating Parkinson's disease comprising sebum biomarkers15 Sep 2026US 12,736,525 B2The University of Manchester
- Rapid screening of volatile chemicals with proton transfer reaction mass spectrometry1 Oct 2026US 2026/0298777 A1Purdue Research Foundation
- Automated multiple linear regression for calibration curves1 Oct 2026US 2026/0298872 A1DH Technologies Development Pte. Ltd.
- Mass spectrometer having parallel precursor ion isolation1 Oct 2026US 2026/0298873 A1Micromass UK Limited
- Three-dimensional laser ablation mass spectrometer, combined detection system, and detection method24 Sep 2026US 2026/0287551 A1Shanghai Chemlab Instrument Co., Ltd
- System and Method for the Rapid Determination of Clean Fill Materials Associated With Excess Excavated Materials24 Sep 2026US 2026/0287552 A1Thunderbird Environmental, LLC
Most cited
By later US patents
- Nanodosimeter based on single ion detection174US 7,081,619 B2Loma Linda University · 2006
- Ion mobility spectrometer135US 5,420,424 AMine Safety Appliances Company · 1995
- Ion mobility storage trap and method135US 6,124,592 ATechnispan LLC · 2000
- Liquid trap or separator for electrosurgical applications134US 10,916,415 B2Micromass UK Limited · 2021
- Ion mobility and mass spectrometer132US 6,323,482 B1Advanced Research and Technology Institute, Inc. · 2001