B01F 21/503
Filters
Official title: {Filters}
B01F21/503 (Filters) appears on 23 US grants and 26 published applications in this corpus.
Search patents in B01F- Granted patents
- 23
- Published applications
- 26
- Assignees
- 19
- Inventors
- 71
- Latest grant
- 7 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 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 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 3 | 7 |
| 2020 | 4 | 1 |
| 2021 | 3 | 6 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 3 | 3 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dissolution generator and bottling system and method7 Jan 2025US 12,186,716 B1
- Integrated composite overload injection system and working method thereof3 Sep 2024US 12,076,699 B2Hebei Huatong Wires & Cables Group Co., Ltd.
- Real time blending system via a single pump2 Jul 2024US 12,023,634 B2Brine Masters, LLC
- High capacity self-cleaning brine maker30 Apr 2024US 11,969,698 B2Brine Masters, LLC
- Brine machine and method22 Aug 2023US 11,731,088 B2Douglas Dynamics, L.L.C.
- Filtration device for water inlet pipe of sprinkler11 Jun 2026US 2026/0159425 A1Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences(CAAS)
- Methods of real-time blending with a pump19 Sep 2024US 2024/0307832 A1Brine Masters, LLC
- Device for preparing a fertilizer solution for use with a fertigation system22 Feb 2024US 2024/0058770 A1Yara International Asa
- Apparatus and method for preparing a dialysis solution1 Feb 2024US 2024/0033693 A1Vivonic GmbH
- Hair treatment system, treatments and apparatus22 Jun 2023US 2023/0191432 A12B1K Imports Pty Ltd
Most cited
By later US patents
- Dissolution cell and apparatus for determining solids-dissolving kinetics13US 5,142,920 AProlabo · 1992
- Salt dissolver8US 4,116,640 ADiamond Crystal Salt Company · 1978
- Brine machine and method6US 10,960,363 B2Douglas Dynamics, L.L.C. · 2021
- Brine maker5US 10,471,399 B12019
- Apparatus for introducing an agent into a liquid or gas at a controlled rate5US 5,525,223 A1996