B01F 23/23122
Having elements opening under air pressure
Official title: {having elements opening under air pressure, e.g. valves}
B01F23/23122 (Having elements opening under air pressure) appears on 33 US grants and 26 published applications in this corpus.
Search patents in B01F- Granted patents
- 33
- Published applications
- 26
- Assignees
- 22
- Inventors
- 63
- Latest grant
- 11 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 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 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 2 |
| 2015 | 1 | 5 |
| 2016 | 2 | 2 |
| 2017 | 4 | 1 |
| 2018 | 2 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 4 |
| 2021 | 2 | 2 |
| 2022 | 4 | 2 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 4 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Diffuser for aeration of a fluid11 Mar 2025US 12,246,293 B2Aquatec Maxcon Pty Ltd
- Mixing systems and methods of mixing4 Mar 2025US 12,240,773 B2Enviromix, Inc.
- Bubble counter25 Feb 2025US 12,233,384 B2
- Carbonation machine with rotatable carbonation head4 Feb 2025US 12,214,322 B2Sodastream Industries Ltd.
- Diffuser for aeration of a fluid20 Dec 2022US 11,529,593 B2Aquatec Maxcon Pty Ltd
- Bubble counter15 Jun 2023US 2023/0182092 A1
- Diffuser for aeration of a fluid9 Mar 2023US 2023/0072106 A1Aquatec Maxcon Pty Ltd
- Carbonation machine with rotatable carbonation head8 Dec 2022US 2022/0387942 A1Sodastream Industries Ltd.
- Mixing systems and methods of mixing28 Jul 2022US 2022/0234927 A1Enviromix, Inc.
- Gas-liquid mixing control system and control method for gas-liquid mixing15 Apr 2021US 2021/0106960 A1Trusval Technology Co., Ltd.
Most cited
By later US patents
- Sparger system including jet stream aerator29US 5,676,823 ABaker Hughes Incorporated · 1997
- Diffuser for aeration systems28US 3,953,554 AAshland Vault Incorporated · 1976
- Bubble-shearing diffuser22US 3,954,922 APeabody Galion Corporation · 1976
- Air diffuser valve21US 6,016,839 ARed Valve Company, Inc. · 2000
- Bubbling system15US 5,356,533 AF. Tecs Co., Ltd. · 1994