B01D 46/20
The belts combined with drums
Official title: the belts combined with drums
B01D46/20 (The belts combined with drums) appears on 28 US grants and 12 published applications in this corpus.
Search patents in B01D- Granted patents
- 28
- Published applications
- 12
- Assignees
- 19
- Inventors
- 40
- Latest grant
- 6 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modular filter for ventilation air vents6 Aug 2024US 12,053,732 B2
- Automatic clean air filter for air conditioner unit12 Apr 2022US 11,298,638 B2Haier US Appliance Solutions, Inc.
- Drum media holding band for filtration system30 Jun 2020US 10,695,707 B2Osprey Corporation
- Hot gas filtration system9 Jun 2015US 9,050,552 B2Cambridge International, Inc.
- Vacuum cleaner with filter cartridge31 Mar 2015US 8,991,003 B2BISSELL Homecare, Inc.
- Filter Support Mechanism, Filter Support Apparatus, and Filter Apparatus6 Aug 2026US 2026/0225019 A1Siemens Aktiengesellschaft
- Modular filter for ventilation air vents13 Jan 2022US 2022/0008857 A1Nitty-Gritty S.R.L.
- Automatic clean air filter for air conditioner unit8 Jul 2021US 2021/0205742 A1Haier US Appliance Solutions, Inc.
- Vacuum Filtration System for Removing Airborne Particulate Pollutants24 Oct 2019US 2019/0321757 A1
- Drum media holding band for filtration system4 Oct 2018US 2018/0280858 A1Osprey Corporation
Most cited
By later US patents
- Filter system with automatic media refresh96US 7,186,290 B2Carrier Corporation · 2007
- Automatic air filter changer48US 4,221,576 A1980
- Vacuum filter belt apparatus42US 5,599,363 A1997
- Flow rate control of temperature control fluids42US 6,168,646 ANortel Networks Limited · 2001
- Portable air cleaner39US 4,894,071 ATech Paper, Inc. · 1990