B01D 15/168
Ph gradient or chromatofocusing, i.e. separation according to the isoelectric point pi
Official title: {pH gradient or chromatofocusing, i.e. separation according to the isoelectric point pI}
B01D15/168 (Ph gradient or chromatofocusing, i.e. separation according to the isoelectric point pi) appears on 24 US grants and 43 published applications in this corpus.
Search patents in B01D- Granted patents
- 24
- Published applications
- 43
- Assignees
- 26
- Inventors
- 96
- Latest grant
- 24 Feb 2026
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|---|---|---|
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
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| 2010 | 2 | 0 |
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| 2012 | 0 | 1 |
| 2013 | 0 | 5 |
| 2014 | 1 | 1 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 2 | 5 |
| 2018 | 2 | 3 |
| 2019 | 4 | 1 |
| 2020 | 2 | 3 |
| 2021 | 2 | 3 |
| 2022 | 1 | 1 |
| 2023 | 2 | 6 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Polishing steps used in multi-step protein purification processes27US 7,662,930 B2Amgen Inc. · 2010
- Affinity chromatography matrix14US 9,187,555 B2GE Healthcare Bio-Sciences AB · 2015
- Buffer kit and method of generating a linear pH gradient12US 8,921,113 B2Dionex Corporation · 2014
- External gradient chromatofocusing3US 7,790,025 B2Cryobiophysica, Inc. · 2010
- Method of packing chromatographic columns3US 9,504,936 B2Purdue Research Foundation · 2016