B04B 9/00
Drives specially designed for centrifuges
Official title: Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
B04B9/00 (Drives specially designed for centrifuges) appears on 786 US grants and 632 published applications in this corpus.
Search patents in B04B- Granted patents
- 786
- Published applications
- 632
- Assignees
- 362
- Inventors
- 1,311
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 11 | 0 |
| 1978 | 20 | 0 |
| 1979 | 9 | 0 |
| 1980 | 17 | 0 |
| 1981 | 11 | 0 |
| 1982 | 10 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 13 | 0 |
| 1986 | 5 | 0 |
| 1987 | 11 | 0 |
| 1988 | 9 | 0 |
| 1989 | 12 | 0 |
| 1990 | 12 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 11 | 0 |
| 1997 | 9 | 0 |
| 1998 | 20 | 0 |
| 1999 | 13 | 0 |
| 2000 | 17 | 0 |
| 2001 | 22 | 3 |
| 2002 | 25 | 28 |
| 2003 | 25 | 19 |
| 2004 | 24 | 33 |
| 2005 | 15 | 15 |
| 2006 | 29 | 14 |
| 2007 | 8 | 14 |
| 2008 | 14 | 22 |
| 2009 | 6 | 19 |
| 2010 | 15 | 24 |
| 2011 | 12 | 22 |
| 2012 | 16 | 21 |
| 2013 | 12 | 27 |
| 2014 | 20 | 28 |
| 2015 | 21 | 38 |
| 2016 | 31 | 26 |
| 2017 | 16 | 30 |
| 2018 | 29 | 33 |
| 2019 | 34 | 23 |
| 2020 | 25 | 24 |
| 2021 | 23 | 25 |
| 2022 | 25 | 31 |
| 2023 | 11 | 31 |
| 2024 | 24 | 23 |
| 2025 | 25 | 39 |
| 2026 | 13 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Separator insert and separator22 Sep 2026US 12,741,288 B2GEA Westfalia Separator Group GmbH
- Gas separation device system using waveform disks15 Sep 2026US 12,734,477 B2
- Centrifugal separators and skid for separating biocomponents and methods of use15 Sep 2026US 12,734,530 B2Life Technologies Corporation
- Continuous flow centrifugation with controlled positive pressure cascade for avoiding cross-contamination25 Aug 2026US 12,715,008 B2Thermo Electron LED GmbH
- Disk array for use in a system and a method for separating fluids9 Jun 2026US 12,649,124 B2Qwtip LLC
- A method for controlling an electric motor of a centrifugal separator1 Oct 2026US 2026/0295601 A1Alfdex AB
- Centrifuge27 Aug 2026US 2026/0249307 A1GEA Westfalia Separator Group GmbH
- Separator insert, separator and method for exchanging a separator insert27 Aug 2026US 2026/0249308 A1GEA Westfalia Separator Group GmbH
- Material separation disc and material separation device comprising the same27 Aug 2026US 2026/0249310 A1Ctcells, Inc.
- Centrifugal separator20 Aug 2026US 2026/0241393 A1Alfa Laval Corporate AB
Most cited
By later US patents
- Apparatus for separating blood into components thereof257US 4,303,193 AHaemonetics Corporation · 1981
- Rotary centrifuge seal205US 4,300,717 AHaemonetics Corporation · 1981
- Extracorporeal blood processing methods and apparatus203US 6,234,989 B1Gambro AB · 2001
- Apheresis blood processing method using pictorial displays174US 5,653,887 ACobe Laboratories, Inc. · 1997
- Extracorporeal blood processing methods and apparatus155US 6,196,987 B1Gambro AB · 2001