B04C 2009/002
Combinations with other devices: with external filters
Official title: {with external filters}
B04C2009/002 (Combinations with other devices: with external filters) appears on 218 US grants and 236 published applications in this corpus.
Search patents in B04C- Granted patents
- 218
- Published applications
- 236
- Assignees
- 141
- Inventors
- 376
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 2 |
| 2003 | 1 | 2 |
| 2004 | 5 | 3 |
| 2005 | 1 | 4 |
| 2006 | 1 | 7 |
| 2007 | 5 | 3 |
| 2008 | 1 | 3 |
| 2009 | 0 | 8 |
| 2010 | 3 | 4 |
| 2011 | 3 | 2 |
| 2012 | 5 | 2 |
| 2013 | 3 | 3 |
| 2014 | 0 | 7 |
| 2015 | 3 | 3 |
| 2016 | 5 | 9 |
| 2017 | 5 | 6 |
| 2018 | 8 | 18 |
| 2019 | 11 | 37 |
| 2020 | 31 | 24 |
| 2021 | 10 | 13 |
| 2022 | 27 | 26 |
| 2023 | 10 | 15 |
| 2024 | 15 | 13 |
| 2025 | 10 | 10 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Surface cleaning apparatus8 Sep 2026US 12,727,731 B2Omachron Intellectual Property Inc.
- Vapor displacement refueling including data communications, zero gravity and chemical looping combustion system25 Aug 2026US 12,718,682 B2
- Surface cleaning apparatus14 Jul 2026US 12,678,001 B2Omachron Intellectual Property Inc.
- Multi-stage circulating separation equipment28 Apr 2026US 12,612,318 B2
- Cleaner24 Mar 2026US 12,582,275 B2LG Electronics Inc.
- Surface cleaning apparatus24 Sep 2026US 2026/0283435 A1Omachron Intellectual Property Inc.
- Multi-use vacuum cleaner6 Aug 2026US 2026/0224077 A1Senur Elektrik Motorlari San. Ve Tic. A.S.
- Surface cleaning apparatus25 Jun 2026US 2026/0174304 A1Omachron Intellectual Property Inc.
- Surface cleaning apparatus25 Jun 2026US 2026/0174305 A1Omachron Intellectual Property Inc.
- Vapor Displacement Refueling Including Onboard Internally Recirculating Chemical Looping Combustion System4 Jun 2026US 2026/0155037 A1
Most cited
By later US patents
- Upright vacuum cleaner with cyclonic air flow295US 6,782,585 B1Fantom Technologies Inc. · 2004
- Handheld cleaning appliance235US 8,156,609 B2Dyson Technology Limited · 2012
- Vacuum cleaner and cyclone module therefor170US 8,062,398 B2BISSELL Homecare, Inc. · 2011
- Material manipulation in three-dimensional printing149US 10,449,696 B2Velo3D, Inc. · 2019
- System for removing contaminant particles from a gas142US 4,537,608 APall Corporation · 1985