B01D 2201/298
End caps common to at least two filtering elements
B01D2201/298 (End caps common to at least two filtering elements) appears on 55 US grants and 77 published applications in this corpus.
Search patents in B01D- Granted patents
- 55
- Published applications
- 77
- Assignees
- 32
- Inventors
- 153
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 3 |
| 2008 | 1 | 2 |
| 2009 | 2 | 7 |
| 2010 | 3 | 5 |
| 2011 | 4 | 2 |
| 2012 | 3 | 7 |
| 2013 | 7 | 4 |
| 2014 | 2 | 1 |
| 2015 | 2 | 2 |
| 2016 | 0 | 1 |
| 2017 | 5 | 2 |
| 2018 | 2 | 6 |
| 2019 | 2 | 3 |
| 2020 | 7 | 6 |
| 2021 | 2 | 4 |
| 2022 | 3 | 4 |
| 2023 | 3 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 5 |
| 2026 | 2 | 5 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Filter device23 Jun 2026US 12,661,607 B2Hydac Filtertechnik GmbH
- Advanced fuel filtration system with interlocking cartridge seal design17 Mar 2026US 12,576,348 B2Atmus Filtration Inc.
- Filtration and deaeration system15 Apr 2025US 12,274,958 B2Donaldson Company, Inc.
- Heat activated adhesive for filters that may contain multiple elements25 Mar 2025US 12,257,536 B2Baldwin Filters, Inc.
- Spin-on fluid treatment device and methods10 Dec 2024US 12,161,959 B2Donaldson Company, Inc.
- Advanced fuel filtration system with interlocking cartridge seal design25 Jun 2026US 2026/0175149 A1Atmus Filtration Inc.
- Filter for hydraulic fluids for hydraulic circuits18 Jun 2026US 2026/0166451 A1Mp Filtri S.P.A.
- Composite filter and water purifier including same4 Jun 2026US 2026/0152414 A1Coway Co., Ltd.
- Composite filter cartridge7 May 2026US 2026/0124559 A1Kemflo International Co., Ltd.
- Oil Filter22 Jan 2026US 2026/0021428 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Environmentally friendly acid neutralizing full flow cartridge82US 6,984,319 B2Baldwin Filters, Inc. · 2006
- Filter element and filter assembly including locking mechanism42US 8,057,669 B2Baldwin Filters, Inc. · 2011
- Filter device and filter element for use with such a filter device25US 9,044,695 B2Hydac Filtertechnik GmbH · 2015
- Replaceable filter elements including plural filter media and related filtration systems, techniques and methods19US 7,887,704 B2Cummins Filtration IP, Inc. · 2011
- Stacked conical filtration or separation apparatus18US 6,692,639 B1Porous Media Corporation · 2004