B01D 35/157
Flow control valves: damping or calibrated passages
Official title: Flow control valves: Damping or calibrated passages
B01D35/157 (Flow control valves: damping or calibrated passages) appears on 352 US grants and 369 published applications in this corpus.
Search patents in B01D- Granted patents
- 352
- Published applications
- 369
- Assignees
- 224
- Inventors
- 820
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 3 |
| 2002 | 9 | 4 |
| 2003 | 2 | 9 |
| 2004 | 4 | 9 |
| 2005 | 9 | 10 |
| 2006 | 3 | 6 |
| 2007 | 3 | 3 |
| 2008 | 3 | 1 |
| 2009 | 1 | 6 |
| 2010 | 3 | 7 |
| 2011 | 3 | 8 |
| 2012 | 6 | 6 |
| 2013 | 3 | 7 |
| 2014 | 3 | 13 |
| 2015 | 6 | 22 |
| 2016 | 10 | 7 |
| 2017 | 11 | 14 |
| 2018 | 17 | 27 |
| 2019 | 16 | 27 |
| 2020 | 23 | 34 |
| 2021 | 30 | 23 |
| 2022 | 27 | 32 |
| 2023 | 15 | 29 |
| 2024 | 29 | 23 |
| 2025 | 26 | 21 |
| 2026 | 22 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Microfluidic purification device29 Sep 2026US 12,746,548 B2Oriental System Technology Inc.
- Automatic shutoff valve for a water filter assembly15 Sep 2026US 12,734,468 B2Haier US Appliance Solutions, Inc.
- Filter adapter, filter system and installation method1 Sep 2026US 12,722,106 B1Koros Technology (Shenzhen) Co. Ltd
- Filter cartridge and filter having same25 Aug 2026US 12,714,954 B2Solventum Intellectual Properties Company
- Filter valve assembly18 Aug 2026US 12,708,868 B2Hamilton Sundstrand Corporation
- 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 assembly with replacement element105US 5,770,065 AParker-Hannifin Corporation · 1998
- Slow release coolant filter99US 5,662,799 AFleetguard, Inc. · 1997
- Chlorination module for cartridge filter unit94US 4,780,197 ARainbow Lifegard Products, Inc. · 1988
- Filter system with environmentally friendly filter cartridge91US 5,702,602 ABaldwin Filters, Inc. · 1997
- Cartridge adapter91US 6,360,764 B1PentaPure Incorporated · 2002