G01N 30/6034
Joining multiple columns
Official title: {joining multiple columns}
G01N30/6034 (Joining multiple columns) appears on 357 US grants and 305 published applications in this corpus.
Search patents in G01N- Granted patents
- 357
- Published applications
- 305
- Assignees
- 191
- Inventors
- 684
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 10 | 0 |
| 1997 | 14 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 13 | 0 |
| 2001 | 11 | 1 |
| 2002 | 6 | 9 |
| 2003 | 4 | 5 |
| 2004 | 5 | 9 |
| 2005 | 3 | 12 |
| 2006 | 6 | 11 |
| 2007 | 4 | 10 |
| 2008 | 3 | 4 |
| 2009 | 5 | 8 |
| 2010 | 5 | 13 |
| 2011 | 3 | 15 |
| 2012 | 5 | 10 |
| 2013 | 5 | 11 |
| 2014 | 13 | 27 |
| 2015 | 13 | 15 |
| 2016 | 12 | 7 |
| 2017 | 16 | 22 |
| 2018 | 17 | 21 |
| 2019 | 14 | 16 |
| 2020 | 11 | 16 |
| 2021 | 18 | 13 |
| 2022 | 11 | 11 |
| 2023 | 9 | 10 |
| 2024 | 14 | 14 |
| 2025 | 8 | 8 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Analyzer and control method for locking analyzer columns29 Sep 2026US 12,748,085 B2Hitachi High-Tech Corporation
- Pipe for chromatograph and method of manufacturing pipe for chromatograph26 May 2026US 12,638,425 B2Shimadzu Corporation
- Multi-column chromatography systems with rotatable valve assemblies14 Apr 2026US 12,599,851 B2Life Technologies Corporation
- Gas analysis device7 Apr 2026US 12,597,647 B2LG Energy Solution, Ltd.
- Chromatography column comprising an internal bracing24 Mar 2026US 12,582,925 B2Cytiva BioProcess R&D AB
- Multi-column chromatography systems with rotatable valve assemblies20 Aug 2026US 2026/0241309 A1Life Technologies Corporation
- Recovery solution generating device for combustion ion chromatograph13 Aug 2026US 2026/0235560 A1Shimadzu Corporation
- Chromatography device, chromatography system and method for changing chromatographic column30 Jul 2026US 2026/0219243 A1Hangzhou Calibra Technologies Co., Ltd.
- Selection valve2 Jul 2026US 2026/0185617 A1Inscinstech Co., Ltd.
- Systems and methods for a gas chromatography mass spectrometry fitting11 Jun 2026US 2026/0160739 A1Agilent Technologies, Inc.
Most cited
By later US patents
- Integrated chemical synthesizers388US 5,580,523 A1996
- Microfiltration apparatus with radially spaced nozzles139US 5,108,704 AW. R. Grace & Co.-Conn. · 1992
- Capillary column chromatography process and system123US 6,581,441 B1PerSeptive Biosystems, Inc. · 2003
- Non-fouling flow through capacitor system115US 5,779,891 A1998
- Portable gas chromatograph94US 5,611,846 ABoard of Supervisors of Louisiana State University and Agricultural and Mechanical College · 1997