G01N 2030/025
Gas chromatography
Official title: {Gas chromatography}
G01N2030/025 (Gas chromatography) appears on 1,034 US grants and 1,015 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,034
- Published applications
- 1,015
- Assignees
- 543
- Inventors
- 2,329
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 18 | 0 |
| 1995 | 32 | 0 |
| 1996 | 32 | 0 |
| 1997 | 29 | 0 |
| 1998 | 31 | 0 |
| 1999 | 20 | 0 |
| 2000 | 15 | 0 |
| 2001 | 12 | 2 |
| 2002 | 16 | 4 |
| 2003 | 12 | 24 |
| 2004 | 11 | 22 |
| 2005 | 17 | 9 |
| 2006 | 11 | 21 |
| 2007 | 14 | 22 |
| 2008 | 14 | 22 |
| 2009 | 15 | 21 |
| 2010 | 15 | 22 |
| 2011 | 8 | 12 |
| 2012 | 21 | 8 |
| 2013 | 17 | 11 |
| 2014 | 10 | 14 |
| 2015 | 14 | 49 |
| 2016 | 18 | 47 |
| 2017 | 30 | 42 |
| 2018 | 50 | 85 |
| 2019 | 47 | 85 |
| 2020 | 66 | 83 |
| 2021 | 71 | 77 |
| 2022 | 73 | 87 |
| 2023 | 61 | 53 |
| 2024 | 81 | 75 |
| 2025 | 45 | 75 |
| 2026 | 43 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Analysis device and analysis method for quality index of natural gas product and application6 Oct 2026US 12,754,171 B2PetroChina Company Limited
- Gas chromatograph6 Oct 2026US 12,754,172 B2Shimadzu Corporation
- Gas chromatograph assistance device and gas chromatograph assistance method29 Sep 2026US 12,748,087 B2Shimadzu Corporation
- Analysis system and method for impurity components in perfluoropropane22 Sep 2026US 12,742,752 B2Lansis Instrument (Shanghai) Co., Ltd
- Predicted bias correction for drilling fluids15 Sep 2026US 12,736,516 B2Halliburton Energy Services.Inc.
- A programmable, battery-less, autonomous and biodegradable smart dust particle1 Oct 2026US 2026/0294293 A1Technion Research & Development Foundation Limited
- Ultra-trace gas detection system and method of using the same1 Oct 2026US 2026/0298887 A1Volatylix, Inc.
- Method for measuring chlorinated paraffin1 Oct 2026US 2026/0298888 A1Shimadzu Corporation
- Dac apparatus24 Sep 2026US 2026/0287562 A1Honda Motor Co., Ltd.
- Metastable ionisation and emission detector, and related methods3 Sep 2026US 2026/0259183 A19518-1236 Quebec Inc.
Most cited
By later US patents
- Miniaturized mass spectrometer system529US 5,313,061 AViking Instrument · 1994
- Integrated multilayered microfludic devices and methods for making the same242US 6,572,830 B1Motorola, Inc. · 2003
- Multilayered microfluidic DNA analysis system and method238US 6,544,734 B12003
- Calibration transfer for analytical instruments157US 5,459,677 AThe Board of Regents of the University of Washington · 1995
- Microfluidic devices comprising biochannels152US 6,875,619 B2Motorola, Inc. · 2005