B01D 24/16
Upward filtration
Official title: Upward filtration (B01D24/18 takes precedence)
B01D24/16 (Upward filtration) appears on 143 US grants and 95 published applications in this corpus.
Search patents in B01D- Granted patents
- 143
- Published applications
- 95
- Assignees
- 96
- Inventors
- 278
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 2 |
| 2006 | 0 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 4 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 3 |
| 2013 | 0 | 3 |
| 2014 | 1 | 5 |
| 2015 | 1 | 1 |
| 2016 | 0 | 6 |
| 2017 | 3 | 3 |
| 2018 | 7 | 3 |
| 2019 | 6 | 4 |
| 2020 | 7 | 9 |
| 2021 | 11 | 9 |
| 2022 | 8 | 13 |
| 2023 | 3 | 9 |
| 2024 | 3 | 0 |
| 2025 | 5 | 6 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for stormwater management6 Oct 2026US 12,753,093 B2Advanced Drainage Systems, Inc.
- Dispenser25 Aug 2026US 12,714,955 B2King Technology, Inc.
- Pure water systems25 Aug 2026US 12,715,790 B2Unger Marketing International, LLC
- Chemical solution supply system and chemical solution supply method19 May 2026US 12,629,617 B2Kioxia Corporation
- Systems and methods for stormwater management9 Dec 2025US 12,492,130 B2Advanced Drainage Systems, Inc.
- Split resin bed, low pressure drop, and replaceable cartridge deionization filter20 Aug 2026US 2026/0241312 A1Atmus Filtration Inc.
- Wastewater treatment method and apparatus2 Jul 2026US 2026/0184614 A1
- Filtration apparatus30 Apr 2026US 2026/0115630 A1Nihon Genryo Co., Ltd.
- Feedback controlled gas lift conveyance of slurry13 Nov 2025US 2025/0347297 A1
- Wastewater filtering method and apparatus comprising filter media of different sizes30 Oct 2025US 2025/0333341 A1Bkt Co., Ltd.
Most cited
By later US patents
- Method and apparatus for acoustically driven media filtration86US 6,221,258 B1Case Western Reserve University · 2001
- Water filtration process and apparatus having upflow filter with buoyant filter media and downflow filter with nonbuoyant filter media70US 4,547,286 ANeptune Microfloc, Inc. · 1985
- Method for separating pollutants from liquid60US 4,246,102 ARederiaktiebolaget Nordstjernan · 1981
- Method and apparatus for acoustically driven media filtration54US 6,797,158 B2Case Western Reserve University · 2004
- Method for the filtration of a suspension or emulsion52US 4,126,546 ARederiaktiebolaget Nordstjernan · 1978