G01N 30/42
Using counter-current
Official title: using counter-current
G01N30/42 (Using counter-current) appears on 89 US grants and 61 published applications in this corpus.
Search patents in G01N- Granted patents
- 89
- Published applications
- 61
- Assignees
- 50
- Inventors
- 126
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 4 |
| 2003 | 4 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 5 |
| 2009 | 2 | 3 |
| 2010 | 2 | 5 |
| 2011 | 4 | 1 |
| 2012 | 3 | 4 |
| 2013 | 1 | 3 |
| 2014 | 1 | 2 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 5 |
| 2018 | 0 | 3 |
| 2019 | 1 | 4 |
| 2020 | 4 | 5 |
| 2021 | 2 | 6 |
| 2022 | 1 | 0 |
| 2023 | 3 | 2 |
| 2024 | 3 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Product quality attribute measurement5 May 2026US 12,618,040 B2Genzyme Corporation
- Automated chromatography column switching control based on pressure detection14 Oct 2025US 12,440,781 B2Cytiva Sweden AB
- Automated chromatography column switching control based on pressure detection26 Mar 2024US 11,938,418 B2Cytiva Sweden AB
- Centrifuge apparatus with layered flying leads16 Jan 2024US 11,872,569 B2Dynamic Extractions Limited
- Centrifuge apparatus with flying leads9 Jan 2024US 11,865,552 B2Dynamic Extractions Limited
- Expanded Bed Chromatography Apparatus26 Feb 2026US 2026/0056169 A1Biotechflow Ltd
- Automated Chromatography Column Switching Control Based on Pressure Detection27 Jun 2024US 2024/0207758 A1Cytiva Sweden AB
- Valve Unit for a Chromatography Apparatus28 Sep 2023US 2023/0304974 A1Cytiva Sweden AB
- Universal rotor for all systems used to subject fluids to centrifugal accelerations14 Sep 2023US 2023/0285873 A1
- Method for desulfurization of methanol21 Oct 2021US 2021/0322895 A1Stora Enso OYJ
Most cited
By later US patents
- Process for fractionating polyethylene glycol (PEG)-protein adducts and an adduct for PEG and granulocyte-macrophage colony stimulating factor83US 5,349,052 ARoyal Free Hospital School of Medicine · 1994
- Preparative countercurrent chromatography with a slowly rotating helical tube array70US 4,051,025 AThe United States of America as represented by the Department of Health, Education and Welfare · 1977
- Process for fractionating polyethylene glycol (PEG)-protein adducts and an adduct of PEG and granulocyte-macrophage colony stimulating factor63US 5,880,255 APolyMASC Pharmaceuticals plc · 1999
- Miniature actual moving bed assembly38US 6,979,402 B1Uop LLC · 2005
- Monolithic integrated flow circuit36US 4,551,251 AThe United States of America as represented by the Department of Health and Human Services · 1985