B01D 2201/295
With projections extending in a radial outward direction
Official title: with projections extending in a radial outward direction, e.g. for use as a guide, spacing means
B01D2201/295 (With projections extending in a radial outward direction) appears on 420 US grants and 575 published applications in this corpus.
Search patents in B01D- Granted patents
- 420
- Published applications
- 575
- Assignees
- 134
- Inventors
- 762
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 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 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 2 |
| 2002 | 1 | 3 |
| 2003 | 3 | 7 |
| 2004 | 2 | 6 |
| 2005 | 1 | 10 |
| 2006 | 7 | 12 |
| 2007 | 8 | 15 |
| 2008 | 7 | 12 |
| 2009 | 8 | 20 |
| 2010 | 9 | 18 |
| 2011 | 13 | 21 |
| 2012 | 13 | 14 |
| 2013 | 17 | 22 |
| 2014 | 13 | 26 |
| 2015 | 18 | 23 |
| 2016 | 17 | 24 |
| 2017 | 15 | 31 |
| 2018 | 21 | 30 |
| 2019 | 33 | 34 |
| 2020 | 31 | 56 |
| 2021 | 21 | 36 |
| 2022 | 44 | 53 |
| 2023 | 33 | 26 |
| 2024 | 34 | 26 |
| 2025 | 28 | 29 |
| 2026 | 13 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid filter retention mechanism18 Aug 2026US 12,708,869 B2Caterpillar Inc.
- Filter arrangements for liquids and methods of use28 Jul 2026US 12,691,395 B2Donaldson Company, Inc.
- Filter cartridge retention feature23 Jun 2026US 12,661,606 B2Atmus Filtration Inc.
- Filter element, filter device, arrangement and assembly method26 May 2026US 12,636,600 B2Argo-Hytos Group AG
- Alignment notch for an endcap of a filter element19 May 2026US 12,629,615 B2Atmus Filtration IP Inc.
- Filter assemblies and related filter elements8 Oct 2026US 2026/0306974 A1Donaldson Company, Inc.
- Filter element endplate oriented on head in filter24 Sep 2026US 2026/0284559 A1Atmus Filtration Inc.
- Filter Element3 Sep 2026US 2026/0257156 A1Hydac Filtertechnik GmbH
- Multistage filter with hydrophobic screen23 Jul 2026US 2026/0208080 A1Atmus Filtration Inc.
- Reusable water filter cartridge9 Jul 2026US 2026/0193104 A1Electrolux Home Products, Inc.
Most cited
By later US patents
- Fluid filter system524US 8,272,516 B2Advanced Filtration Systems Inc. · 2012
- Environmentally friendly filter cartridge275US 5,685,985 ABaldwin Filters, Inc. · 1997
- Recharge and filter assembly with replaceable cartridge131US 6,235,194 B1Parker-Hannifin Corporation · 2001
- Filter element with off-axis end cap85US 7,494,017 B2Parker-Hannifin Corporation · 2009
- Environmentally friendly acid neutralizing full flow cartridge82US 6,984,319 B2Baldwin Filters, Inc. · 2006