G01N 2030/085
Using absorbing precolumn
Official title: {using absorbing precolumn}
G01N2030/085 (Using absorbing precolumn) appears on 239 US grants and 220 published applications in this corpus.
Search patents in G01N- Granted patents
- 239
- Published applications
- 220
- Assignees
- 182
- Inventors
- 562
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 11 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 6 | 10 |
| 2003 | 2 | 5 |
| 2004 | 8 | 5 |
| 2005 | 4 | 11 |
| 2006 | 4 | 11 |
| 2007 | 7 | 13 |
| 2008 | 4 | 12 |
| 2009 | 9 | 8 |
| 2010 | 9 | 9 |
| 2011 | 4 | 10 |
| 2012 | 9 | 5 |
| 2013 | 6 | 13 |
| 2014 | 6 | 6 |
| 2015 | 6 | 9 |
| 2016 | 6 | 9 |
| 2017 | 8 | 8 |
| 2018 | 6 | 7 |
| 2019 | 6 | 16 |
| 2020 | 10 | 13 |
| 2021 | 7 | 16 |
| 2022 | 10 | 6 |
| 2023 | 9 | 4 |
| 2024 | 11 | 5 |
| 2025 | 7 | 3 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Quality control of GC gas flow11 Aug 2026US 12,704,489 B2Schlumberger Technology Corporation
- Product quality attribute measurement5 May 2026US 12,618,040 B2Genzyme Corporation
- Preparative separation and purification device and preparative separation and purification method31 Mar 2026US 12,590,933 B2Shimadzu Corporation
- Chemical agent detector with 30 second cycle10 Feb 2026US 12,546,755 B2MRIGlobal
- Thermal analysis apparatus20 Jan 2026US 12,529,635 B2Rigaku Corporation
- Fractionation method and fractionation apparatus30 Jul 2026US 2026/0219241 A1Shimadzu Corporation
- Analysis system and method for impurity components in perfluoropropane23 Jul 2026US 2026/0210916 A1Lansis Instrument (Shanghai) Co., Ltd
- Liquid chromatography-mass spectrometry system25 Jun 2026US 2026/0175166 A1Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
- Carry-over free method for semaglutide quantitation25 Jun 2026US 2026/0177555 A1Shimadzu Corporation
- Personalized integrated mobile exhalation decoder15 Jan 2026US 2026/0016450 A1
Most cited
By later US patents
- Combination apparatus and method for chromatographic separation and quantitative analysis of multiple ionic species109US 4,314,823 ADionex Corporation · 1982
- Monolithic microfluidic concentrators and mixers107US 6,887,384 B1The Regents of the University of California · 2005
- High speed detection of vapors of specific compounds57US 5,092,155 AThermedics Inc. · 1992
- Vapor collector/desorber with non-conductive tube bundle55US 5,551,278 AThermedics Inc. · 1996
- Chromatography column and process for packing same54US 4,732,687 AMerck Patent GmbH · 1988