B04B 1/18
Controlled by the centrifugal force of an auxiliary liquid
Official title: controlled by the centrifugal force of an auxiliary liquid
B04B1/18 (Controlled by the centrifugal force of an auxiliary liquid) appears on 32 US grants and 14 published applications in this corpus.
Search patents in B04B- Granted patents
- 32
- Published applications
- 14
- Assignees
- 15
- Inventors
- 28
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 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 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Centrifugal separators and separation methods providing intermediate material ejection control28 Jul 2026US 12,691,457 B2Empirical Innovations, Inc.
- Centrifuge24 Jun 2025US 12,337,097 B2Dsm IP Assets B.V.
- Centrifugal separators and separation methods providing intermediate material ejection control17 Sep 2024US 12,090,491 B2Empirical Innovations, Inc.
- Centrifuge9 Nov 2021US 11,167,292 B2Dsm IP Assets B.V.
- Drum and ejection control arrangements for centrifugal separators and separation methods employing multiple pistons to control separate intermittent ejection of heavy and intermediate material11 May 2021US 11,000,859 B2Empirical Innovations, Inc.
- Centrifugal separator30 Jul 2026US 2026/0216737 A1Alfa Laval Corporate AB
- Centrifuge18 Sep 2025US 2025/0288735 A1Dsm IP Assets B.V.
- Centrifugal separators and separation methods providing intermediate material ejection control26 Dec 2024US 2024/0424503 A1Empirical Innovations, Inc.
- Centrifuge9 May 2024US 2024/0148953 A1Dsm IP Assets B.V.
- Centrifuge3 Feb 2022US 2022/0031925 A1Dsm IP Assets B.V.
Most cited
By later US patents
- Centrifuge for separating solids from liquids30US 4,015,773 AAlfa-Laval AB · 1977
- Centrifugal separator with sensing means24US 3,986,663 AAlfa-Laval AB · 1976
- Centrifuge24US 8,974,362 B2Kensey Nash Corporation · 2015
- Self-cleaning centrifugal separator having a main piston valve defining one side of the separating chamber and connected to at least one auxiliary piston valve12US 4,044,945 AWestfalia Separator AG · 1977
- Centrifuge with self-emptying drum11US 4,514,183 AWestfalia Separator AG · 1985