G01N 30/68
Flame ionisation detectors
G01N30/68 (Flame ionisation detectors) appears on 138 US grants and 133 published applications in this corpus.
Search patents in G01N- Granted patents
- 138
- Published applications
- 133
- Assignees
- 107
- Inventors
- 359
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 9 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 3 |
| 2004 | 0 | 2 |
| 2005 | 0 | 4 |
| 2006 | 1 | 5 |
| 2007 | 0 | 2 |
| 2008 | 2 | 3 |
| 2009 | 2 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 3 |
| 2012 | 4 | 0 |
| 2013 | 6 | 3 |
| 2014 | 1 | 4 |
| 2015 | 4 | 16 |
| 2016 | 4 | 6 |
| 2017 | 7 | 5 |
| 2018 | 4 | 13 |
| 2019 | 9 | 13 |
| 2020 | 7 | 5 |
| 2021 | 6 | 6 |
| 2022 | 9 | 5 |
| 2023 | 4 | 6 |
| 2024 | 10 | 7 |
| 2025 | 4 | 6 |
| 2026 | 0 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for analyzing light n-alkane components and carbon isotopes in deep and ultra-deep source rock25 Nov 2025US 12,480,919 B2Beijing Jiaotong University
- Flow splitter for gas chromatography systems14 Oct 2025US 12,442,803 B2Leco Corporation
- Inert fluid assays for sealed core recovery12 Aug 2025US 12,385,888 B2ConocoPhillips Company
- Mosquito aggregation composition6 May 2025US 12,290,070 B2Molecular Attraction AB
- Rapid method for different types of biocide residual with analysis procedure19 Nov 2024US 12,146,867 B2Saudi Arabian Oil Company
- Propane-position carbon isotope testing method and testing system8 Oct 2026US 2026/0309682 A1China Petroleum & Chemical Corporation
- Flame-based detectors with ignition promoter port10 Sep 2026US 2026/0266777 A1Agilent Technologies, Inc.
- Gas analyzer20 Aug 2026US 2026/0243739 A1Shimadzu Corporation
- Analysis system for hydrocarbon components in ultrapure ammonia13 Aug 2026US 2026/0235559 A1Lansis Instrument (Shanghai) Co., Ltd
- Analysis system and method for impurity components in perfluoropropane23 Jul 2026US 2026/0210916 A1Lansis Instrument (Shanghai) Co., Ltd
Most cited
By later US patents
- Portable gas chromatograph94US 5,611,846 ABoard of Supervisors of Louisiana State University and Agricultural and Mechanical College · 1997
- Instrument for measuring non-methane organic gases in gas samples54US 5,595,709 AChromatofast · 1997
- Apparatus and methods for controlling fluids provided to a chromatographic detector50US 5,108,466 AHewlett-Packard Company · 1992
- Method and system for chemical and physical characterization of complex samples48US 8,413,484 B2Separation Systems, Inc. · 2013
- Automated two-dimensional interface for capillary gas chromatography47US 5,492,555 ALovelace Biomedical & Environmental Research Institute, Inc. · 1996