B01D 2201/302
Having inlet or outlet ports
Official title: having inlet or outlet ports
B01D2201/302 (Having inlet or outlet ports) appears on 758 US grants and 913 published applications in this corpus.
Search patents in B01D- Granted patents
- 758
- Published applications
- 913
- Assignees
- 357
- Inventors
- 1,415
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 14 | 0 |
| 1999 | 9 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 2 |
| 2002 | 12 | 14 |
| 2003 | 10 | 18 |
| 2004 | 11 | 27 |
| 2005 | 13 | 26 |
| 2006 | 10 | 23 |
| 2007 | 10 | 22 |
| 2008 | 12 | 17 |
| 2009 | 14 | 20 |
| 2010 | 12 | 30 |
| 2011 | 15 | 19 |
| 2012 | 16 | 18 |
| 2013 | 15 | 23 |
| 2014 | 15 | 41 |
| 2015 | 25 | 41 |
| 2016 | 34 | 38 |
| 2017 | 26 | 34 |
| 2018 | 46 | 51 |
| 2019 | 29 | 45 |
| 2020 | 46 | 63 |
| 2021 | 31 | 65 |
| 2022 | 57 | 75 |
| 2023 | 56 | 52 |
| 2024 | 55 | 64 |
| 2025 | 38 | 42 |
| 2026 | 35 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Recovery tank22 Sep 2026US 12,740,683 B2SharkNinja Operating LLC
- Water filter cartridge and head having keyed engagement8 Sep 2026US 12,728,373 B2Culligan International Company
- Filter cartridge and filter having same25 Aug 2026US 12,714,954 B2Solventum Intellectual Properties Company
- Filter assembly25 Aug 2026US 12,716,481 B2Filtran LLC
- Pressing surface for filtration container assembly11 Aug 2026US 12,702,941 B2Grayl Inc.
- Animal watering system8 Oct 2026US 2026/0305570 A1Aborder Products, Inc.
- Filter assemblies and related filter elements8 Oct 2026US 2026/0306974 A1Donaldson Company, Inc.
- Filter Element with Biplanar O-Ring1 Oct 2026US 2026/0295481 A1Parker-Hannifin Corporation
- Filter interconnect utilizing a magnetic repulsion force1 Oct 2026US 2026/0295483 A1KX Technologies LLC
- Axial flow single split filter24 Sep 2026US 2026/0284557 A1Atmus Filtration Inc.
Most cited
By later US patents
- Personal water filter bottle system161US 6,569,329 B1Innova Pure Water Inc. · 2003
- Filter assembly and cartridge therefor146US 5,114,572 AProcess Scientific Innovations Limited · 1992
- Oil filter with inner and outer coaxial filter elements140US 5,342,511 ABaldwin Filters, Inc. · 1994
- Filter with quick-connect coupling136US 3,950,251 ARayne International · 1976
- Fluid filter assembly130US 5,556,542 AFleetguard, Inc. · 1996