B01D 29/085
Funnel filters
Official title: Funnel filters; Holders therefor
B01D29/085 (Funnel filters) appears on 119 US grants and 101 published applications in this corpus.
Search patents in B01D- Granted patents
- 119
- Published applications
- 101
- Assignees
- 90
- Inventors
- 252
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 4 |
| 2002 | 4 | 3 |
| 2003 | 1 | 5 |
| 2004 | 2 | 0 |
| 2005 | 1 | 4 |
| 2006 | 3 | 3 |
| 2007 | 2 | 2 |
| 2008 | 1 | 3 |
| 2009 | 1 | 3 |
| 2010 | 2 | 4 |
| 2011 | 0 | 2 |
| 2012 | 5 | 3 |
| 2013 | 1 | 1 |
| 2014 | 1 | 5 |
| 2015 | 1 | 5 |
| 2016 | 2 | 3 |
| 2017 | 6 | 2 |
| 2018 | 4 | 5 |
| 2019 | 4 | 5 |
| 2020 | 2 | 2 |
| 2021 | 4 | 15 |
| 2022 | 6 | 8 |
| 2023 | 5 | 8 |
| 2024 | 4 | 2 |
| 2025 | 5 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aquarium skimmer devices, systems, and methods4 Aug 2026US 12,696,882 B2
- Tank inlet filters21 Oct 2025US 12,447,425 B2Rain Harvesting Pty Ltd
- Filter apparatus and process for filtration17 Jun 2025US 12,330,092 B2Koslow Technologies Corporation
- Liquid filtering method and system29 Apr 2025US 12,285,708 B2Sartorius Stedim Biotech GmbH
- Filter cleaning assembly for a dishwasher appliance25 Feb 2025US 12,232,677 B2Haier US Appliance Solutions, Inc.
- Extraction and filtration of polluted air in a laser printing system for microscope slides5 Mar 2026US 2026/0061517 A1Shandon Diagnostics Limited
- Clothes treatment apparatus3 Jul 2025US 2025/0215635 A1LG Electronics Inc.
- Handheld fluid sprayer10 Apr 2025US 2025/0114810 A1Graco Minnesota Inc.
- Tank for filtering and collecting debris13 Feb 2025US 2025/0050244 A1Joint-Stock Company “Atomenergoproekt”
- Aquarium skimmer devices, systems, and methods1 Aug 2024US 2024/0251765 A1
Most cited
By later US patents
- Disposable vacuum filtration apparatus capable of detecting microorganisms and particulates in liquid samples489US 6,913,152 B22005
- Microporous filtration funnel assembly128US 5,308,483 AGelman Sciences, Inc. · 1994
- Vacuum filter89US 4,301,010 ASpectrum Medical Industries, Inc. · 1981
- Filter cover for a purification insert in a water treatment device with a hollow tube80US 4,895,648 ABrita Wasser-Filter-Systeme GmbH · 1990
- Filter device with magnetic filter clamp64US 4,468,321 AGelman Sciences, Inc. · 1984