B01D 2201/316
Standpipes
B01D2201/316 (Standpipes) appears on 152 US grants and 179 published applications in this corpus.
Search patents in B01D- Granted patents
- 152
- Published applications
- 179
- Assignees
- 50
- Inventors
- 271
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 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 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 3 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 3 |
| 2008 | 2 | 8 |
| 2009 | 3 | 18 |
| 2010 | 6 | 8 |
| 2011 | 5 | 5 |
| 2012 | 7 | 8 |
| 2013 | 5 | 8 |
| 2014 | 5 | 11 |
| 2015 | 6 | 5 |
| 2016 | 10 | 7 |
| 2017 | 7 | 11 |
| 2018 | 8 | 7 |
| 2019 | 8 | 12 |
| 2020 | 12 | 14 |
| 2021 | 9 | 14 |
| 2022 | 17 | 8 |
| 2023 | 11 | 12 |
| 2024 | 8 | 3 |
| 2025 | 11 | 8 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recovery tank22 Sep 2026US 12,740,683 B2SharkNinja Operating LLC
- Filtration system with improved standpipe design21 Apr 2026US 12,605,657 B2Atmus Filtration Inc.
- Filter device21 Oct 2025US 12,447,423 B2Mahle International GmbH
- Filtration devices and associated filter element7 Oct 2025US 12,434,178 B2Donaldson Company, Inc.
- Filter with a replaceable filter insert26 Aug 2025US RE50,552 E1Hengst GmbH & Co. KG
- Animal watering system8 Oct 2026US 2026/0305570 A1Aborder Products, Inc.
- Fuel filter12 Feb 2026US 2026/0042040 A1Mahle International GmbH
- Filtration devices and associated filter element15 Jan 2026US 2026/0014502 A1Donaldson Company, Inc.
- Fuel water separator filter with water collection features1 Jan 2026US 2026/0002505 A1Baldwin Filters, Inc.
- Enclosed media fluid filtration device13 Nov 2025US 2025/0345726 A1Advanced Drainage Systems, Inc.
Most cited
By later US patents
- Filter for internal combustion engine fuels93US 6,709,588 B2Filterwerk Mann & Hummel GmbH · 2004
- Self closing filter centerpost75US 5,846,417 AFleetguard, Inc. · 1998
- Fuel filter element with flow actuator60US 5,855,780 AAdvanced Performance Technology, Inc. · 1999
- Filter assembly with vented filter element50US 7,147,110 B2Parker-Hannifin Corporation · 2006
- Single cartridge filter46US 4,561,979 AHarmsco, Inc. · 1985