B03C 3/82
Housings
B03C3/82 (Housings) appears on 124 US grants and 124 published applications in this corpus.
Search patents in B03C- Granted patents
- 124
- Published applications
- 124
- Assignees
- 100
- Inventors
- 330
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 2 |
| 2003 | 3 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 3 |
| 2011 | 5 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 2 | 7 |
| 2015 | 3 | 9 |
| 2016 | 7 | 8 |
| 2017 | 6 | 5 |
| 2018 | 6 | 7 |
| 2019 | 7 | 6 |
| 2020 | 3 | 15 |
| 2021 | 7 | 6 |
| 2022 | 11 | 7 |
| 2023 | 5 | 13 |
| 2024 | 9 | 14 |
| 2025 | 6 | 10 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrostatic filter module for air cleaner, and air cleaner9 Jun 2026US 12,649,158 B2BSH Hausgeräte GmbH
- Positive and negative oxygen ion air purification system using dielectric barrier discharge for rail transport6 Jan 2026US 12,514,952 B2Knorr-Bremse Espana SA
- Cabin air filter with polarisation11 Nov 2025US 12,465,926 B2Hengst GmbH & Co. KG
- Cabin air filter device and components15 Jul 2025US 12,358,003 B2Hengst GmbH & Co. KG
- Fan diffuser assembly and method24 Jun 2025US 12,338,835 B1ScentAir Technologies, LLC
- Ion generator device13 Aug 2026US 2026/0232863 A1
- Electrostatic air purifier18 Jun 2026US 2026/0166566 A1Suzhou Beiang Smark Technology Co., Ltd.
- Lithium recovery apparatus4 Jun 2026US 2026/0152868 A1Posco Holdings Inc.
- Electronically enhanced air cleaner with multiple filters and energy grids12 Mar 2026US 2026/0070067 A1Healthway Home Products Company Inc.
- Ultra-thin micro-electrostatic module and production method thereof11 Dec 2025US 2025/0375775 A1AirQuality Technology (Shanghai) Co., Ltd.
Most cited
By later US patents
- Filtering apparatus for a forced air duct grill105US 5,525,145 A1996
- Dust precipitation from air by negative ionization63US 5,141,529 ANeg-Ions (North America) Inc. · 1992
- Electronic air cleaner52US 5,669,963 ACarrier Corporation · 1997
- Dust precipitation from air by negative ionization50US 5,296,019 ANeg-Ions (North America) Inc. · 1994
- Electrostatic precipitator48US 5,248,324 AFiltration Japan Co., Ltd. · 1993