B04B 3/00
Centrifuges with rotary bowls in which solid particles or bodies become separated
Official title: Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
B04B3/00 (Centrifuges with rotary bowls in which solid particles or bodies become separated) appears on 387 US grants and 219 published applications in this corpus.
Search patents in B04B- Granted patents
- 387
- Published applications
- 219
- Assignees
- 196
- Inventors
- 553
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 9 | 0 |
| 1978 | 10 | 0 |
| 1979 | 8 | 0 |
| 1980 | 13 | 0 |
| 1981 | 10 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 0 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 10 | 0 |
| 1994 | 16 | 0 |
| 1995 | 12 | 0 |
| 1996 | 9 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 13 | 0 |
| 2000 | 11 | 0 |
| 2001 | 10 | 0 |
| 2002 | 11 | 4 |
| 2003 | 5 | 3 |
| 2004 | 3 | 8 |
| 2005 | 1 | 2 |
| 2006 | 4 | 6 |
| 2007 | 3 | 6 |
| 2008 | 3 | 3 |
| 2009 | 1 | 8 |
| 2010 | 3 | 11 |
| 2011 | 9 | 7 |
| 2012 | 2 | 9 |
| 2013 | 4 | 2 |
| 2014 | 7 | 15 |
| 2015 | 7 | 13 |
| 2016 | 5 | 11 |
| 2017 | 10 | 12 |
| 2018 | 7 | 11 |
| 2019 | 14 | 12 |
| 2020 | 13 | 13 |
| 2021 | 8 | 11 |
| 2022 | 9 | 13 |
| 2023 | 10 | 11 |
| 2024 | 8 | 10 |
| 2025 | 9 | 10 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B04B 3/04Discharging solid particles from the bowl by a conveying screw coaxial with87
- B04B 3/02Discharging solid particles from the bowl by means coaxial with the bowl69
- B04B 3/06Discharging solid particles by vibrating the bowl18
- B04B 3/08Discharging solid particles by bowl walls in the form of endless bands7
Recent patents
- Continuous centrifugal dewatering device12 May 2026US 12,623,234 B2LG Chem.Ltd.
- Filter for a treatment apparatus21 Apr 2026US 12,605,658 B2Fresh Works Ltd
- Device structure for multistage water-air separation of cleaning machine6 Jan 2026US 12,514,421 B2GuangDong Well Technology Co., Ltd
- Isolation of nucleic acids30 Sep 2025US 12,428,669 B2Exact Sciences Corporation
- Sealing station with centrifugal separator24 Jun 2025US 12,337,334 B2Multivac Sepp Haggenmueller SE & Co. KG
- Potato protein extraction apparatus and method27 Aug 2026US 2026/0250314 A1Root Extracts Limited
- Wear assembly for a helically formed, metal decanter screw conveyor20 Aug 2026US 2026/0242149 A1Alfa Laval Corporate AB
- Filter for a treatment apparatus6 Aug 2026US 2026/0225010 A1Fresh Works Ltd
- Separation of minerals by specific gravity9 Jul 2026US 2026/0192309 A1Good Earth IP Holdings, LLC
- Filter device4 Jun 2026US 2026/0151547 A1Terumo Kabushiki Kaisha
Most cited
By later US patents
- Isolation of nucleic acids71US 9,000,146 B2Exact Sciences Corporation · 2015
- Bone slurry recovery65US 6,387,070 B1NuVasive, Inc. · 2002
- Invertible filter centrifuge including a solids drier59US 6,159,360 AHeinkel Industriezentrifugen GmbH & Co. · 2000
- Conical screen basket centrifuge53US 5,378,364 ABaker Hughes Incorporated · 1995
- Methods for producing a high protein corn meal from a whole stillage byproduct53US 8,778,433 B2Fluid-Quip, Inc. · 2014