B01D 15/22
Relating to the construction of the column
Official title: relating to the construction of the column
B01D15/22 (Relating to the construction of the column) appears on 626 US grants and 778 published applications in this corpus.
Search patents in B01D- Granted patents
- 626
- Published applications
- 778
- Assignees
- 404
- Inventors
- 1,442
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 12 | 0 |
| 2001 | 7 | 1 |
| 2002 | 11 | 10 |
| 2003 | 8 | 12 |
| 2004 | 10 | 15 |
| 2005 | 5 | 20 |
| 2006 | 9 | 24 |
| 2007 | 10 | 18 |
| 2008 | 10 | 21 |
| 2009 | 3 | 17 |
| 2010 | 15 | 30 |
| 2011 | 12 | 25 |
| 2012 | 7 | 27 |
| 2013 | 18 | 44 |
| 2014 | 25 | 30 |
| 2015 | 20 | 28 |
| 2016 | 26 | 50 |
| 2017 | 22 | 46 |
| 2018 | 34 | 46 |
| 2019 | 31 | 41 |
| 2020 | 37 | 37 |
| 2021 | 34 | 34 |
| 2022 | 34 | 41 |
| 2023 | 26 | 44 |
| 2024 | 33 | 52 |
| 2025 | 32 | 29 |
| 2026 | 20 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Water treatment system and method4 Aug 2026US 12,697,567 B2Drops Tech 2015 Ltd
- Chromatographic column30 Jun 2026US 12,667,825 B2King Saud University
- Filter assemblies, depth indicators, torque-limiting fittings, torque-indicating fittings, and systems incorporating the same23 Jun 2026US 12,663,403 B2Agilent Technologies, Inc.
- Metal components with inert vapor phase coating on internal surfaces16 Jun 2026US 12,655,517 B2Agilent Technologies, Inc.
- Monolithic microporous substrate for chromatographic beds26 May 2026US 12,636,637 B2Spf Technologies LLC
- High pressure fluid handling device for liquid chromatography8 Oct 2026US 2026/0309684 A1IDEX Health & Science LLC
- Chromatography column1 Oct 2026US 2026/0295461 A1Astrea UK Services Limited
- Biological Material Purification Method, Magnetic Stand, And Biological Material Purification Device24 Sep 2026US 2026/0284552 A1Seiko Epson Corporation
- A sorbent device for sorptive sampling10 Sep 2026US 2026/0266699 A1Markes International Limited
- System and method for thin layer chromatography10 Sep 2026US 2026/0266784 A1
Most cited
By later US patents
- Microfluidic chromatography190US 6,752,922 B2Fluidigm Corporation · 2004
- Column with macroporous polymer media132US 5,334,310 ACornell Research Foundation, Inc. · 1994
- Microfluidic chromatography123US 7,217,367 B2Fluidigm Corporation · 2007
- Column with macroporous polymer media113US 5,453,185 ACornell Research Foundation, Inc. · 1995
- Porous inorganic/organic hybrid particles for chromatographic separations and process for their preparation94US 6,686,035 B2Waters Investments Limited · 2004