B01D 2313/21
Specific headers, end caps
B01D2313/21 (Specific headers, end caps) appears on 361 US grants and 488 published applications in this corpus.
Search patents in B01D- Granted patents
- 361
- Published applications
- 488
- Assignees
- 259
- Inventors
- 1,029
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 2 |
| 2002 | 1 | 5 |
| 2003 | 6 | 3 |
| 2004 | 1 | 8 |
| 2005 | 3 | 9 |
| 2006 | 2 | 9 |
| 2007 | 6 | 4 |
| 2008 | 5 | 9 |
| 2009 | 5 | 15 |
| 2010 | 6 | 18 |
| 2011 | 9 | 21 |
| 2012 | 13 | 28 |
| 2013 | 10 | 17 |
| 2014 | 18 | 26 |
| 2015 | 19 | 29 |
| 2016 | 13 | 20 |
| 2017 | 24 | 26 |
| 2018 | 18 | 27 |
| 2019 | 28 | 37 |
| 2020 | 18 | 31 |
| 2021 | 21 | 22 |
| 2022 | 18 | 32 |
| 2023 | 25 | 17 |
| 2024 | 14 | 33 |
| 2025 | 23 | 21 |
| 2026 | 15 | 19 |
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.
- Formed sheet membrane element and filtration system4 Aug 2026US 12,697,586 B2Fibracast Ltd.
- Filtration device23 Jun 2026US 12,661,618 B2Gambro Lundia AB
- Tubular membrane heat exchanger12 May 2026US 12,624,897 B2Baltimore Aircoil Company, Inc.
- Devices, systems, and methods for the analysis of membrane-mediated processes8 Oct 2026US 2026/0306966 A1The Administrators of the Tulane Educational Fund
- Water filtration assembly having a polymer hydrogel filtration media structure24 Sep 2026US 2026/0284604 A1Haier US Appliance Solutions, Inc.
- Systems, devices, and methods for electrodialysis-based home-scale desalination13 Aug 2026US 2026/0234033 A1Massachusetts Institute of Technology
- Oxygenator30 Jul 2026US 2026/0216412 A1Terumo Kabushiki Kaisha
- Oxygenator30 Jul 2026US 2026/0216413 A1Terumo Kabushiki Kaisha
Most cited
By later US patents
- Arterial blood filter with improved gas venting135US 4,411,783 AShiley Incorporated · 1983
- Filter assembly includng filter unit having deformable sealing end caps130US 5,304,312 AEastman Kodak Company · 1994
- Filtration apparatus using hollow fiber membrane115US 4,547,289 A1985
- Modular microporous filter assemblies111US 5,405,528 AMemtec Limited · 1995
- Device and method for positioning a detonator within a perforating gun assembly92US 10,188,990 B2DynaEnergetics GmbH & Co. KG · 2019