B04B 9/04
Direct drive
B04B9/04 (Direct drive) appears on 58 US grants and 64 published applications in this corpus.
Search patents in B04B- Granted patents
- 58
- Published applications
- 64
- Assignees
- 44
- Inventors
- 127
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 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 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 3 |
| 2005 | 1 | 0 |
| 2006 | 1 | 3 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 4 |
| 2010 | 1 | 5 |
| 2011 | 1 | 4 |
| 2012 | 2 | 1 |
| 2013 | 2 | 1 |
| 2014 | 3 | 2 |
| 2015 | 4 | 6 |
| 2016 | 2 | 5 |
| 2017 | 0 | 0 |
| 2018 | 4 | 6 |
| 2019 | 2 | 0 |
| 2020 | 2 | 2 |
| 2021 | 2 | 4 |
| 2022 | 0 | 3 |
| 2023 | 3 | 5 |
| 2024 | 1 | 4 |
| 2025 | 5 | 0 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Separator insert, separator and method for exchanging a separator insert19 May 2026US 12,629,699 B2GEA Westfalia Separator Group GmbH
- Crankcase ventilation systems including integrated sensors and controller4 Nov 2025US 12,460,564 B2Cummins Filtration Inc.
- Portable centrifuge device and method of use15 Jul 2025US 12,357,741 B2ABC Med Tech Corp.
- Active biological sample processing and thermal management devices1 Jul 2025US 12,342,812 B2Laboratory Corporation of America Holdings
- Magnetically suspended and rotated separator27 May 2025US 12,311,388 B2GEA Mechanical Equipment GmbH
- A method for controlling an electric motor of a centrifugal separator1 Oct 2026US 2026/0295601 A1Alfdex AB
- Separator insert, separator and method for exchanging a separator insert27 Aug 2026US 2026/0249308 A1GEA Westfalia Separator Group GmbH
- Active biological sample processing and thermal management devices7 May 2026US 2026/0123624 A1Laboratory Corporation of America Holdings
- Transport securing means for a separator insert of a separator5 Feb 2026US 2026/0034549 A1GEA Westfalia Separator Group GmbH
- A centrifugal separator1 Aug 2024US 2024/0253063 A1Alfa Laval Corporate AB
Most cited
By later US patents
- Centrifuge configurations51US 9,128,015 B2Theranos, Inc. · 2015
- Cooling structure for a centrifuge36US 4,193,536 AKabushiki Kaisha Kubota Seisakusho · 1980
- Motor driven centrifugal filter32US 6,213,929 B1Analytical Engineering, Inc. · 2001
- Centrifuge construction having central stator30US 5,505,684 APiramoon Technologies, Inc. · 1996
- Cyclical centrifugal machine26US 4,223,829 AThe Western States Machine Company · 1980