B01D 35/1573
Flow control valves
Official title: {Flow control valves}
B01D35/1573 (Flow control valves) appears on 203 US grants and 259 published applications in this corpus.
Search patents in B01D- Granted patents
- 203
- Published applications
- 259
- Assignees
- 146
- Inventors
- 512
- Latest grant
- 29 Sep 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 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 3 |
| 2005 | 1 | 7 |
| 2006 | 3 | 5 |
| 2007 | 3 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 3 |
| 2010 | 3 | 4 |
| 2011 | 2 | 4 |
| 2012 | 4 | 3 |
| 2013 | 3 | 5 |
| 2014 | 2 | 9 |
| 2015 | 4 | 19 |
| 2016 | 9 | 7 |
| 2017 | 8 | 8 |
| 2018 | 14 | 19 |
| 2019 | 10 | 20 |
| 2020 | 19 | 29 |
| 2021 | 19 | 17 |
| 2022 | 26 | 21 |
| 2023 | 8 | 20 |
| 2024 | 20 | 20 |
| 2025 | 17 | 15 |
| 2026 | 18 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Filter adapter, filter system and installation method1 Sep 2026US 12,722,106 B1Koros Technology (Shenzhen) Co. Ltd
- Filter valve assembly18 Aug 2026US 12,708,868 B2Hamilton Sundstrand Corporation
- Well plug debris capturing system28 Jul 2026US 12,692,757 B1Bandit Services, LLC
- Devices, systems, and methods, for integrating of a fluid service assembly into a machine1 Oct 2026US 2026/0295482 A1Rpm Industries, LLC
- Filter element endplate oriented on head in filter24 Sep 2026US 2026/0284559 A1Atmus Filtration Inc.
- Fluid filtration system with single use filter and integrated integrity test device and method of using same17 Sep 2026US 2026/0273442 A1Cytiva US LLC
- Filtering device and mounting structure10 Sep 2026US 2026/0263980 A1Yamashin-Filter Corp.
- Filter device and filter assembly27 Aug 2026US 2026/0249216 A1LG Electronics Inc.
Most cited
By later US patents
- Fuel filter with dual flow80US 6,113,781 AParker-Hannifin Corporation · 2000
- Filter cartridge for a fuel filter having a keyed latch shut-off valve67US 6,495,042 B1Parker-Hannifin Corporation · 2002
- Fuel filter assembly with standpipe having valve element61US 6,171,491 B2Parker-Hannifin Corporation · 2001
- Fuel filter with bypass valve60US 6,555,000 B2Parker-Hannifin Corporation · 2003
- Liquid filter assembly; and methods52US 8,119,002 B2Donaldson Company, Inc. · 2012