G01N 30/7206
Interfaced to gas chromatograph
Official title: {interfaced to gas chromatograph (interfaces in general for introducing or extracting samples to be analysed with specially adapted mass spectrometer, see H01J49/04)}
G01N30/7206 (Interfaced to gas chromatograph) appears on 549 US grants and 643 published applications in this corpus.
Search patents in G01N- Granted patents
- 549
- Published applications
- 643
- Assignees
- 364
- Inventors
- 1,466
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 3 |
| 2003 | 2 | 7 |
| 2004 | 4 | 8 |
| 2005 | 4 | 12 |
| 2006 | 7 | 12 |
| 2007 | 7 | 7 |
| 2008 | 4 | 10 |
| 2009 | 12 | 9 |
| 2010 | 3 | 14 |
| 2011 | 5 | 14 |
| 2012 | 11 | 16 |
| 2013 | 15 | 23 |
| 2014 | 18 | 21 |
| 2015 | 19 | 30 |
| 2016 | 20 | 45 |
| 2017 | 22 | 42 |
| 2018 | 30 | 34 |
| 2019 | 46 | 58 |
| 2020 | 36 | 52 |
| 2021 | 35 | 45 |
| 2022 | 49 | 55 |
| 2023 | 28 | 34 |
| 2024 | 39 | 39 |
| 2025 | 25 | 29 |
| 2026 | 15 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Training data generation apparatus, model training apparatus, sample characteristic estimation apparatus, and chromatograph mass spectrometry apparatus15 Sep 2026US 12,736,508 B2Shimadzu Corporation
- Method for analyzing trace levels of semi-volatile nitrosamines in solid samples8 Sep 2026US 12,730,096 B2Merck Sharp & Dohme Corp.
- User interface for ion mobility separation device8 Sep 2026US 12,731,773 B2Micromass UK Limited
- Advanced glycation end product analogues18 Aug 2026US 12,709,630 B2Phytoquest Limited
- Cell culture methods11 Aug 2026US 12,703,851 B2University of Massachusetts
- Propane-position carbon isotope testing method and testing system8 Oct 2026US 2026/0309682 A1China Petroleum & Chemical Corporation
- Method for measuring chlorinated paraffin1 Oct 2026US 2026/0298888 A1Shimadzu Corporation
- A method for quality check of at least one lc-ms measurement17 Sep 2026US 2026/0276607 A1Roche Diagnostics Operations, Inc.
- Rig site chromatographic column reconditioning30 Jul 2026US 2026/0219240 A1Schlumberger Technology Corporation
- Solvent for gas chromatograpy mass spectometry, and method for determination of fluorine-containing substances on the surface of fluororesin melt-molded products30 Jul 2026US 2026/0219244 A1Chemours-Mitsui Fluoroproducts Co., Ltd.
Most cited
By later US patents
- Miniaturized mass spectrometer system529US 5,313,061 AViking Instrument · 1994
- Isotope-ratio-monitoring gas chromatography-mass spectrometry apparatus and method118US 5,012,052 AIndiana University Foundation · 1991
- Method and apparatus for electrospray-augmented high field asymmetric ion mobility spectrometry115US 6,690,004 B2The Charles Stark Draper Laboratory, Inc. · 2004
- Method for preparing blend products88US 5,600,134 AExxon Research & Engineering Co. · 1997
- Method for predicting chemical or physical properties of crude oils87US 5,699,269 AExxon Research & Engineering Co. · 1997