B01D 2265/025
Making use of ramps or cams
Official title: making use of ramps or cams
B01D2265/025 (Making use of ramps or cams) appears on 182 US grants and 170 published applications in this corpus.
Search patents in B01D- Granted patents
- 182
- Published applications
- 170
- Assignees
- 80
- Inventors
- 309
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 2 |
| 2004 | 3 | 6 |
| 2005 | 3 | 5 |
| 2006 | 2 | 4 |
| 2007 | 1 | 6 |
| 2008 | 7 | 8 |
| 2009 | 3 | 2 |
| 2010 | 4 | 9 |
| 2011 | 7 | 6 |
| 2012 | 7 | 8 |
| 2013 | 8 | 4 |
| 2014 | 5 | 5 |
| 2015 | 6 | 8 |
| 2016 | 5 | 10 |
| 2017 | 7 | 11 |
| 2018 | 2 | 10 |
| 2019 | 15 | 8 |
| 2020 | 9 | 8 |
| 2021 | 6 | 6 |
| 2022 | 6 | 12 |
| 2023 | 8 | 11 |
| 2024 | 5 | 8 |
| 2025 | 12 | 8 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for an adjustable filter rack6 Oct 2026US 12,753,948 B2Midea Group Co., Ltd.
- Filter and clamping wedge for a filter8 Sep 2026US 12,728,375 B2Mann+Hummel GmbH
- Sideload disinfecting modular filtration system28 Jul 2026US 12,691,399 B2Healthway Home Products Company Inc.
- Air purifier3 Mar 2026US 12,564,809 B2Coway Co., Ltd.
- Filter system having key-fit attachment between holder and filter connector13 Jan 2026US 12,521,662 B2Caterpillar Inc.
- Insertable media cleaner for hvac duct27 Aug 2026US 2026/0249219 A1Vibrant Building Technologies LLC
- Filter system and method for pharmaceutical filling isolators13 Aug 2026US 2026/0233142 A1Vanrx Pharmasystems Inc.
- Filter element11 Jun 2026US 2026/0158429 A1
- Filter system for spray booth30 Apr 2026US 2026/0115639 A1Giffin, Inc.
- Filter system having key-fit attachment between holder and filter connector2 Apr 2026US 2026/0091336 A1Caterpillar Inc.
Most cited
By later US patents
- Air filter having fluted filter media207US 7,396,375 B2Donaldson Company, Inc. · 2008
- Air cleaner arrangements; serviceable filter elements; and, methods177US 7,351,270 B2Donaldson Company, Inc. · 2008
- Respirator air filter cartridge with a replaceable filter element169US 5,222,488 ADonaldson Company, Inc. · 1993
- Filter element locking mechanism158US 4,322,231 AFarr Company · 1982
- Air cleaner149US 5,545,241 ADonaldson Company, Inc. · 1996