B04B 5/08
Centrifuges for separating predominantly gaseous mixtures
B04B5/08 (Centrifuges for separating predominantly gaseous mixtures) appears on 93 US grants and 72 published applications in this corpus.
Search patents in B04B- Granted patents
- 93
- Published applications
- 72
- Assignees
- 55
- Inventors
- 127
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 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 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 2 |
| 2004 | 3 | 4 |
| 2005 | 0 | 2 |
| 2006 | 5 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 3 | 2 |
| 2013 | 1 | 5 |
| 2014 | 1 | 2 |
| 2015 | 2 | 2 |
| 2016 | 2 | 1 |
| 2017 | 3 | 5 |
| 2018 | 3 | 7 |
| 2019 | 2 | 10 |
| 2020 | 5 | 3 |
| 2021 | 9 | 3 |
| 2022 | 6 | 4 |
| 2023 | 0 | 3 |
| 2024 | 1 | 6 |
| 2025 | 6 | 3 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas separation device system using waveform disks15 Sep 2026US 12,734,477 B2
- Apparatus and method for isolating hydrogen from water11 Aug 2026US 12,703,628 B2Rtx Corporation
- Disk array for use in a system and a method for separating fluids9 Jun 2026US 12,649,124 B2Qwtip LLC
- Modular centrifugal separator for cleaning gas7 Apr 2026US 12,594,561 B2Alfdex AB
- Waveform disks and a system using the waveform disks19 Aug 2025US 12,392,330 B2Qwtip LLC
- Device for separating gas from a mixed gas flow6 Aug 2026US 2026/0225014 A1
- A centrifugal separator for cleaning gas9 Jul 2026US 2026/0192225 A1Alfdex AB
- Centrifugal separator for separating liquid from a wet gas22 Jan 2026US 2026/0021495 A1Freevalve AB
- System and Method for Separating Fluids and Creating Magnetic Fields24 Jul 2025US 2025/0237200 A1Qwtip LLC
- Gas Separation Device System Using Waveform Disks15 May 2025US 2025/0154939 A1Qwtip LLC
Most cited
By later US patents
- Oil separator for small particles40US 6,709,477 B1Volvo Lastvagnar AB · 2004
- Centrifuge for separating helium from natural gas36US 4,182,480 AUltra-Centrifuge Nederland N.V. · 1980
- Method for separating gas mixtures and a gas centrifuge for carrying out the method34US 7,591,882 B2Rerum Cognito Forschungszentrum GmbH · 2009
- Centrifugal separator having a rotor and driving means thereof33US 7,022,150 B2Alfa Laval Corporate AB · 2006
- Centrifugal separator for cleaning of a fluid33US 7,056,363 B2Alfa Laval Corporate AB · 2006