B04B 5/06
Centrifugal counter-current apparatus
B04B5/06 (Centrifugal counter-current apparatus) appears on 27 US grants and 11 published applications in this corpus.
Search patents in B04B- Granted patents
- 27
- Published applications
- 11
- Assignees
- 19
- Inventors
- 54
- Latest grant
- 30 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 1 |
| 2020 | 2 | 2 |
| 2021 | 3 | 2 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Compact reverse flow centrifuge system30 Jul 2024US 12,048,937 B2Scinogy Products Pty Ltd
- Rotary solid/fluid counter-current contacting apparatus29 Aug 2023US 11,738,286 B2
- Method and installation for the reduction of sulphur oxides in exhaust gas from marine diesel engines9 Nov 2021US 11,167,243 B23Nine AB
- Refiner for lactose and high lactose products2 Nov 2021US 11,162,149 B2Keller Technologies, Inc.
- Rotary solid/fluid counter-current contacting apparatus10 Aug 2021US 11,083,980 B2
- Compact reverse flow centrifuge system23 Jan 2025US 2025/0025892 A1Scinogy Products Pty Ltd
- Method and device for continuous countercurrent transfer of material between two fluid phases20 Jan 2022US 2022/0016546 A1
- Rotary solid/fluid counter-current contacting apparatus4 Nov 2021US 2021/0339165 A1
- Method And Installation For The Reduction Of Sulphur Oxides In Exhaust Gas From Marine Diesel Engines9 Sep 2021US 2021/0275966 A13Nine AB
- Refiner for lactose and high lactose products15 Oct 2020US 2020/0325549 A1Keller Technologies, Inc.
Most cited
By later US patents
- Method of and apparatus for centrifugal separation of liquid phases55US 4,203,840 AKernforschungsanlage Julich Gesellschaft mit beschrankter Haftung · 1980
- Particle separation process28US 4,708,710 AE. I. Du Pont de Nemours and Company · 1987
- Apparatus and method for continuous countercurrent extraction and particle separation22US 4,414,108 AThe United States of America as represented by the Department of Health and Human Services · 1983
- Centrifugal water oil separator15US 4,175,040 AContinental Oil Company · 1979
- Centrifugal extraction process14US 6,036,630 APraxair Technology, Inc. · 2000