B01D 2279/55
Filters adapted for separating dispersed particles from gases or vapours specially modified
Official title: for cleaning appliances, e.g. suction cleaners
B01D2279/55 (Filters adapted for separating dispersed particles from gases or vapours specially modified) appears on 356 US grants and 430 published applications in this corpus.
Search patents in B01D- Granted patents
- 356
- Published applications
- 430
- Assignees
- 185
- Inventors
- 790
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 7 |
| 2002 | 11 | 8 |
| 2003 | 9 | 11 |
| 2004 | 10 | 8 |
| 2005 | 5 | 16 |
| 2006 | 11 | 6 |
| 2007 | 5 | 10 |
| 2008 | 9 | 5 |
| 2009 | 6 | 8 |
| 2010 | 6 | 11 |
| 2011 | 7 | 6 |
| 2012 | 7 | 7 |
| 2013 | 5 | 4 |
| 2014 | 7 | 5 |
| 2015 | 5 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 20 |
| 2018 | 3 | 22 |
| 2019 | 18 | 45 |
| 2020 | 28 | 36 |
| 2021 | 17 | 39 |
| 2022 | 33 | 36 |
| 2023 | 32 | 40 |
| 2024 | 22 | 30 |
| 2025 | 25 | 23 |
| 2026 | 17 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Assemblies and methods for material extraction from retention collections11 Aug 2026US 12,703,585 B2Industrial Vacuum Transfer Services USA, LLC
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- Surface cleaning apparatus24 Sep 2026US 2026/0283435 A1Omachron Intellectual Property Inc.
- Separator for a fluid cleaning device24 Sep 2026US 2026/0284678 A1Dyson Technology Limited
- Assemblies and methods for material extraction from retention collections24 Sep 2026US 2026/0285620 A1Industrial Vacuum Transfer Services USA, LLC
- Systems, methods, and devices for industrial tower waste extraction17 Sep 2026US 2026/0274643 A1Industrial Vacuum Transfer Services USA, LLC
Most cited
By later US patents
- Air filter arrangement having first and second filter media dividing a housing and methods343US 6,210,469 B1Donaldson Company, Inc. · 2001
- Vacuum cleaner and filter thereof136US 5,248,323 AHealth-Mor, Inc. · 1993
- Upright vacuum cleaner with cyclonic airflow134US 6,848,146 B2Royal Appliance Mfg. Co. · 2005
- Upright vacuum cleaner with cyclonic airflow109US 6,003,196 ARoyal Appliance Mfg. Co. · 1999
- Bagless dustcup85US 6,558,453 B2White Consolidated Industries, Inc. · 2003