B01J 20/288
Polar phases
B01J20/288 (Polar phases) appears on 151 US grants and 182 published applications in this corpus.
Search patents in B01J- Granted patents
- 151
- Published applications
- 182
- Assignees
- 113
- Inventors
- 415
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 7 |
| 2003 | 2 | 3 |
| 2004 | 4 | 6 |
| 2005 | 3 | 8 |
| 2006 | 6 | 8 |
| 2007 | 4 | 3 |
| 2008 | 4 | 7 |
| 2009 | 3 | 5 |
| 2010 | 1 | 5 |
| 2011 | 4 | 2 |
| 2012 | 2 | 2 |
| 2013 | 6 | 9 |
| 2014 | 2 | 14 |
| 2015 | 4 | 8 |
| 2016 | 9 | 9 |
| 2017 | 5 | 6 |
| 2018 | 6 | 8 |
| 2019 | 4 | 9 |
| 2020 | 7 | 8 |
| 2021 | 8 | 14 |
| 2022 | 4 | 6 |
| 2023 | 7 | 10 |
| 2024 | 10 | 6 |
| 2025 | 9 | 9 |
| 2026 | 7 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Chromatography beads, production and use thereof1 Sep 2026US 12,722,143 B2Cytiva BioProcess R&D AB
- Material and method for performing a separation based on halogen bonding19 May 2026US 12,629,612 B2Merck Patent GmbH
- Method of analysis of polynucleotides by restricted access reversed phase chromatography19 May 2026US 12,629,660 B2Waters Technologies Corporation
- Separation of nucleic acid component compounds on zwitterionic stationary phases24 Mar 2026US 12,584,159 B2Waters Technologies Corporation
- Double surface modified porous material with minimized nonspecific interaction17 Feb 2026US 12,551,864 B2Waters Technologies Corporation
- Process for using modified dtpa-associated organosilica media for producing individually separated high purity rare earth elements8 Oct 2026US 2026/0308717 A1Wayne State University
- Immunoglobulin-binding protein1 Oct 2026US 2026/0297140 A1Tosoh Corporation
- Amino-group-containing fiber, method of producing amino-group-containing fiber, product using amino-group-containing fiber, formed body, carbon dioxide sorbent including formed body, method of using carbon dioxide sorbent, and carbon dioxide separation/capture device30 Jul 2026US 2026/0216697 A1Toyobo Co., Ltd.
- Chromatographic composition and methods of producing the chromatographic composition30 Jul 2026US 2026/0216699 A1Advanced Materials Technology, Inc.
- Chromatography Beads, Production and Use Threreof16 Jul 2026US 2026/0199875 A1Cytiva BioProcess R&D AB
Most cited
By later US patents
- Use of retentate chromatography to generate difference maps229US 6,225,047 B1Ciphergen Biosystems, Inc. · 2001
- Polymeric microbeads and method of preparation110US 5,583,162 ABiopore Corporation · 1996
- Porous inorganic/organic hybrid particles for chromatographic separations and process for their preparation94US 6,686,035 B2Waters Investments Limited · 2004
- Polar-modified bonded phase materials for chromatographic separations90US 7,125,488 B2Varian, Inc. · 2006
- Polymeric microbeads81US 5,863,957 ABiopore Corporation · 1999