B01J 20/29
Chiral phases
B01J20/29 (Chiral phases) appears on 209 US grants and 142 published applications in this corpus.
Search patents in B01J- Granted patents
- 209
- Published applications
- 142
- Assignees
- 92
- Inventors
- 397
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 10 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 1 |
| 2002 | 6 | 5 |
| 2003 | 4 | 4 |
| 2004 | 4 | 15 |
| 2005 | 2 | 9 |
| 2006 | 4 | 7 |
| 2007 | 7 | 10 |
| 2008 | 4 | 8 |
| 2009 | 5 | 11 |
| 2010 | 7 | 10 |
| 2011 | 7 | 4 |
| 2012 | 8 | 9 |
| 2013 | 2 | 8 |
| 2014 | 5 | 6 |
| 2015 | 5 | 5 |
| 2016 | 8 | 5 |
| 2017 | 2 | 3 |
| 2018 | 4 | 4 |
| 2019 | 4 | 2 |
| 2020 | 2 | 3 |
| 2021 | 2 | 6 |
| 2022 | 4 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Separating agent for optical isomers2 Sep 2025US 12,403,447 B2Daicel Corporation
- Amine separation method using liquid chromatography15 Oct 2024US 12,115,467 B2Daicel Corporation
- Chiral stationary phase16 May 2023US 11,648,530 B2Nankai University
- Single-use, disposable high-pressure liquid chromatography columns for high-throughput analysis20 Dec 2022US 11,531,009 B2PureHoney Technologies, Inc.
- Quantitative method for determining the organic acid content of crude oil8 Nov 2022US 11,493,488 B2BP Exploration Operating Company Limited
- Mixed mode charge induction ion exchange (iex) chromatography (mmciic) ligands and methods of use28 May 2026US 2026/0145159 A1Bio-Rad Laboratories, Inc.
- Amine separation method5 Mar 2026US 2026/0062375 A1Daicel Corporation
- Chitosan compounds and optical isomer separating agent16 Oct 2025US 2025/0320314 A1Daicel Corporation
- Method for producing stationary phase for column chromatography21 Nov 2024US 2024/0382933 A1Daicel Corporation
- Microfluidic device and method for manufacturing same17 Oct 2024US 2024/0342719 A1Daicel Corporation
Most cited
By later US patents
- Method to identify analyte-bending ligands78US 5,133,866 ATerrapin Technologies, Inc. · 1992
- Panels of analyte-binding ligands63US 5,340,474 ATerrapin Technologies, Inc. · 1994
- Bonded phase material for chromatographic separations50US 4,539,399 AAdvanced Separation Technologies Incorporated · 1985
- Texaphyrin solid supports and devices47US 5,594,136 ABoard of Regents, The University of Texas · 1997
- Cyclodextrin sulfonates, guest inclusion complexes methods of making the same and related materials46US 6,610,671 B2Eastman Chemical Company · 2003