B01D 2267/30
Same type of filters
B01D2267/30 (Same type of filters) appears on 107 US grants and 126 published applications in this corpus.
Search patents in B01D- Granted patents
- 107
- Published applications
- 126
- Assignees
- 83
- Inventors
- 278
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 3 |
| 2003 | 4 | 3 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 1 | 7 |
| 2008 | 1 | 2 |
| 2009 | 4 | 2 |
| 2010 | 2 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 2 | 2 |
| 2014 | 4 | 6 |
| 2015 | 0 | 1 |
| 2016 | 5 | 4 |
| 2017 | 7 | 24 |
| 2018 | 9 | 9 |
| 2019 | 9 | 3 |
| 2020 | 4 | 10 |
| 2021 | 10 | 14 |
| 2022 | 7 | 7 |
| 2023 | 9 | 5 |
| 2024 | 7 | 9 |
| 2025 | 1 | 3 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Kit for air-filtration assembly24 Mar 2026US 12,582,929 B23M Innovative Properties Company
- Computer farm ventilation system10 Mar 2026US 12,569,792 B1S-M Enterprises, Inc.
- Air filter mounting plate24 Feb 2026US 12,558,640 B2Camfil Aktiebolag
- Air filtration cassette, an air filter and a filter arrangement24 Feb 2026US 12,558,646 B2Camfil Aktiebolag
- Gas filter separator filter cartridge with keys and/or baffle6 Jan 2026US 12,515,160 B2Parker-Hannifin Corporation
- Gas treatment apparatus for vent30 Apr 2026US 2026/0115637 A1Building Healthcare Solutions, LLC
- Gas filter separator filter cartridge with keys and/or baffle2 Apr 2026US 2026/0091337 A1Parker-Hannifin Corporation
- Dehydrating filter, particularly for air conditioning and/or refrigeration systems19 Mar 2026US 2026/0078936 A1OLAB S.r.l.
- Electronically enhanced air cleaner with multiple filters and energy grids12 Mar 2026US 2026/0070067 A1Healthway Home Products Company Inc.
- Method for Purifying Dust-containing Gas with Positive Pressure26 Feb 2026US 2026/0054209 A1Suzhou University of Science and Technology
Most cited
By later US patents
- Multi-element cylindrical filter with equalized flow185US 6,511,599 B2Nelson Industries, Inc. · 2003
- HEPA room air purifier86US 4,629,482 AEnviracaire Corporation · 1986
- Air filter assembly having non-cylindrical filter elements, for filtering air with particulate matter78US 6,387,162 B1Donaldson Company, Inc. · 2002
- Multiple flow filter system66US 7,540,895 B2Fleetguard, Inc. · 2009
- Volume-efficient filter64US 7,799,108 B2Cummins Filtration IP, Inc. · 2010