B01D 2221/02
Small separation devices for domestic application
Official title: Small separation devices for domestic application, e.g. for canteens, industrial kitchen, washing machines
B01D2221/02 (Small separation devices for domestic application) appears on 139 US grants and 126 published applications in this corpus.
Search patents in B01D- Granted patents
- 139
- Published applications
- 126
- Assignees
- 85
- Inventors
- 301
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 4 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 5 |
| 2007 | 3 | 7 |
| 2008 | 2 | 3 |
| 2009 | 3 | 4 |
| 2010 | 3 | 3 |
| 2011 | 1 | 5 |
| 2012 | 5 | 4 |
| 2013 | 4 | 7 |
| 2014 | 6 | 3 |
| 2015 | 2 | 6 |
| 2016 | 3 | 2 |
| 2017 | 1 | 6 |
| 2018 | 9 | 8 |
| 2019 | 3 | 4 |
| 2020 | 4 | 13 |
| 2021 | 4 | 7 |
| 2022 | 3 | 5 |
| 2023 | 5 | 6 |
| 2024 | 13 | 8 |
| 2025 | 3 | 11 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Removal device15 Sep 2026US 12,734,466 B2Aalberts hfc B.V.
- System and method for making a building carbon neutral1 Sep 2026US 12,723,783 B2Carrier Corporation
- System and method for scale management in water heating system26 May 2026US 12,638,215 B2Bradford White Corporation
- Foreign matter removal device17 Feb 2026US 12,551,905 B2Mitsubishi Electric Corporation
- Microplastic filter for washing machines or other appliances30 Sep 2025US 12,427,453 B2Samsung Electronics Co., Ltd.
- Effluent filtration of a washing machine through a helical brush10 Sep 2026US 2026/0263972 A1MANN+HUMMEL Life Sciences & Environment Holding Singapore Pte. Ltd.
- Under-sink solids separating and composting devices9 Apr 2026US 2026/0098400 A1Kohler Co.
- System and method for scale management in water heating system29 Jan 2026US 2026/0029135 A1Bradford White Corporation
- Smoke Plume Capture9 Oct 2025US 2025/0312721 A1
- Liquid filtration cartridge and a system for liquied filtration11 Sep 2025US 2025/0281855 A1
Most cited
By later US patents
- Heterogeneous reactor104US 4,744,958 A1988
- Wastewater treatment mechanism46US 5,207,896 ANorwalk Wastewater Equipment Company · 1993
- Apparatus for gravity separation of particles from liquid41US 4,957,628 A1990
- Separator for low discharge applications41US 8,915,380 B2Goslyn, L.P. · 2014
- Wastewater treatment apparatus with an outer filtration unit and an inner settling unit40US 5,413,706 ANorwalk Wastewater Equipment Company d/b/a NORWECO, Inc. · 1995