B01D 2201/167
Single-way valves
B01D2201/167 (Single-way valves) appears on 87 US grants and 128 published applications in this corpus.
Search patents in B01D- Granted patents
- 87
- Published applications
- 128
- Assignees
- 84
- Inventors
- 304
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 3 |
| 2012 | 2 | 2 |
| 2013 | 1 | 2 |
| 2014 | 1 | 3 |
| 2015 | 2 | 2 |
| 2016 | 3 | 3 |
| 2017 | 3 | 9 |
| 2018 | 4 | 10 |
| 2019 | 7 | 10 |
| 2020 | 6 | 13 |
| 2021 | 7 | 4 |
| 2022 | 7 | 15 |
| 2023 | 8 | 6 |
| 2024 | 11 | 11 |
| 2025 | 4 | 15 |
| 2026 | 7 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter assembly25 Aug 2026US 12,715,785 B2Samsung Electronics Co., Ltd.
- Method of supplying potable water to a recreation vehicle14 Jul 2026US 12,678,722 B1Camco Manufacturing, Inc.
- Filter cartridge and water filter device30 Jun 2026US 12,668,505 B2
- Valve21 Apr 2026US 12,607,272 B2Microtecnica S.R.L.
- Filter cartridge, and method of retrofitting filter housing27 Jan 2026US 12,533,612 B2Entegris, Inc.
- Filter Element3 Sep 2026US 2026/0257156 A1Hydac Filtertechnik GmbH
- Positive pressure filtration apparatus and method20 Aug 2026US 2026/0241314 A1Scientific Plastic Products, Inc.
- Under-sink water purifier30 Jul 2026US 2026/0217566 A1Coway Co., Ltd.
- Removable Cartridge Design with Threaded Center Tube2 Jul 2026US 2026/0183684 A1Parker-Hannifin Corporation
- Filter cartridge, and method of retrofitting filter housing14 May 2026US 2026/0131266 A1Entegris, Inc.
Most cited
By later US patents
- Fluid filtration system36US 8,097,156 B23M Innovative Properties Company · 2012
- Fuel filter with sediment drain valve and level indicator25US 6,083,381 ADonaldson Company, Inc. · 2000
- Ceramic filter filtration apparatus for purifying swimming pool water24US 5,632,890 A1997
- Method of cleaning porous ceramic filters23US 5,244,585 A1993
- Fluid treatment apparatus20US 5,951,876 AWater Recovery PLC · 1999