B01D 2201/4053
Using keys
Official title: using keys
B01D2201/4053 (Using keys) appears on 180 US grants and 251 published applications in this corpus.
Search patents in B01D- Granted patents
- 180
- Published applications
- 251
- Assignees
- 80
- Inventors
- 387
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 2 | 5 |
| 2013 | 0 | 5 |
| 2014 | 2 | 11 |
| 2015 | 1 | 8 |
| 2016 | 9 | 15 |
| 2017 | 11 | 17 |
| 2018 | 15 | 16 |
| 2019 | 17 | 20 |
| 2020 | 17 | 30 |
| 2021 | 11 | 23 |
| 2022 | 22 | 25 |
| 2023 | 21 | 22 |
| 2024 | 23 | 22 |
| 2025 | 21 | 13 |
| 2026 | 7 | 15 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Water filter cartridge and head having keyed engagement8 Sep 2026US 12,728,373 B2Culligan International Company
- Filter assembly with authenticating filter element coupling and replaceable drop-in twist locking filter element therefor2 Jun 2026US 12,643,061 B2Schroeder Industries, Inc.
- Alignment notch for an endcap of a filter element19 May 2026US 12,629,615 B2Atmus Filtration IP Inc.
- Filter system, positioning mechanism, filter element and method for inserting and positioning a filter element3 Mar 2026US 12,564,804 B2Mahle International GmbH
- Lubricant filter assembly24 Feb 2026US 12,560,112 B2Pratt & Whitney Canada Corp.
- Keyed flange filtration manifold interface8 Oct 2026US 2026/0306977 A1Midea Group Co., Ltd.
- Water filtration assembly and method for assembly24 Sep 2026US 2026/0284561 A1Haier US Appliance Solutions, Inc.
- Water filter and adapter for water filter30 Jul 2026US 2026/0216626 A1LG Electronics Inc.
- Water filter and home appliance with water filter and method for coupling water filter23 Jul 2026US 2026/0208079 A1LG Electronics Inc.
- Sensing device for integrated image capture of an object and related intrusion detection systems23 Jul 2026US 2026/0212745 A1
Most cited
By later US patents
- Push filter with floating key lock52US 9,233,322 B1KX Technologies LLC · 2016
- Filtration sealing system35US 8,061,530 B2Cummins Filtration IP, Inc. · 2011
- Water filter cartridge with slanted nozzles31US 10,682,593 B22020
- Spool valve manifold interconnect for a filter system30US 8,097,158 B23M Innovative Properties Company · 2012
- Aerosol separator assembly; components; and methods30US 8,758,467 B2Donaldson Company, Inc. · 2014