B01D 2313/44
Cartridge types
B01D2313/44 (Cartridge types) appears on 299 US grants and 384 published applications in this corpus.
Search patents in B01D- Granted patents
- 299
- Published applications
- 384
- Assignees
- 226
- Inventors
- 762
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 8 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 5 |
| 2003 | 3 | 4 |
| 2004 | 4 | 10 |
| 2005 | 3 | 10 |
| 2006 | 1 | 10 |
| 2007 | 4 | 12 |
| 2008 | 3 | 13 |
| 2009 | 7 | 9 |
| 2010 | 5 | 12 |
| 2011 | 8 | 23 |
| 2012 | 10 | 13 |
| 2013 | 9 | 8 |
| 2014 | 10 | 11 |
| 2015 | 7 | 12 |
| 2016 | 4 | 19 |
| 2017 | 11 | 21 |
| 2018 | 9 | 19 |
| 2019 | 23 | 23 |
| 2020 | 12 | 23 |
| 2021 | 16 | 24 |
| 2022 | 17 | 32 |
| 2023 | 19 | 19 |
| 2024 | 21 | 33 |
| 2025 | 20 | 12 |
| 2026 | 16 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cartridge of fuel cell humidifier, and fuel cell humidifier29 Sep 2026US 12,746,515 B2Kolon Industries, Inc.
- Filter cartridge and water purification system22 Sep 2026US 12,741,249 B2Foshan Micro Midea Filter Mfg. Co., Ltd.
- Hollow fiber membrane cartridge1 Sep 2026US 12,722,123 B2Kolon Industries, Inc.
- Filter apparatus with vented core, electrostatic discharge mitigation, or both18 Aug 2026US 12,708,867 B2Entegris, Inc.
- Stackable and adjustable membrane module18 Aug 2026US 12,708,877 B2Ultressa LLC
- Mixing hollow fiber sizes for improved humidifier performance2 Jul 2026US 2026/0183717 A1Parker-Hannifin Corporation
- Water filtration device25 Jun 2026US 2026/0176160 A1Caware Filtering Corporation
- Composite filter and water purifier including same4 Jun 2026US 2026/0152414 A1Coway Co., Ltd.
- Filter cassette article, and filter comprising same7 May 2026US 2026/0124583 A1Smartflow Technologies, Inc.
- System for filter analysis and regeneration23 Apr 2026US 2026/0110615 A1Taiwan Semiconductor Manufacturing Company.Ltd
Most cited
By later US patents
- Process for preparing hydrophilic polyamide membrane filter media and product277US 4,340,479 APall Corporation · 1982
- Device for concentrating plasma235US 6,010,627 AQuantic Biomedical Partners · 2000
- Hollow fiber cartridge165US 5,470,469 AE. I. Du Pont de Nemours and Company · 1995
- Personal water filter bottle system161US 6,569,329 B1Innova Pure Water Inc. · 2003
- Process for preparing liquophilic polyamide membrane filter media and product114US 4,340,480 APall Corporation · 1982