B01D 2053/223
With hollow tubes
Official title: {with hollow tubes}
B01D2053/223 (With hollow tubes) appears on 260 US grants and 366 published applications in this corpus.
Search patents in B01D- Granted patents
- 260
- Published applications
- 366
- Assignees
- 196
- Inventors
- 720
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 14 |
| 2015 | 6 | 33 |
| 2016 | 22 | 39 |
| 2017 | 32 | 33 |
| 2018 | 29 | 27 |
| 2019 | 15 | 34 |
| 2020 | 17 | 26 |
| 2021 | 20 | 30 |
| 2022 | 27 | 30 |
| 2023 | 22 | 21 |
| 2024 | 17 | 27 |
| 2025 | 30 | 18 |
| 2026 | 21 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dual-layer hollow fiber membranes and methods of making and use22 Sep 2026US 12,741,269 B2The Regents of the University of Michigan
- Gas separation system and method for producing methane-enriched gas15 Sep 2026US 12,734,474 B2Ube Corporation
- Carbon dioxide separation, collection, and utilization system and carbon dioxide separation, collection, and utilization method15 Sep 2026US 12,735,370 B2Research Institute of Innovative Technology for the Earth
- CO2 separation systems and methods25 Aug 2026US 12,714,970 B2Carbonquest, Inc.
- Alkali enrichment mediated CO2 sequestration methods, and systems for practicing the same28 Jul 2026US 12,691,410 B1Blue Planet Systems Corporation
- Hollow fiber membrane module8 Oct 2026US 2026/0307014 A1Nok Corporation
- Filter assembly for a therapeutic gas delivery device1 Oct 2026US 2026/0295513 A1Mallinckrodt Pharmaceuticals Ireland Limited
- Hollow fiber membranes comprising a poly(aryl ether sulfone) and a water-soluble polymer additive1 Oct 2026US 2026/0295540 A1BASF SE
- Gas purification method10 Sep 2026US 2026/0264002 A1Shenyang Starlight New Materials Co., Ltd.
- Membrane separation apparatus and engine exhaust apparatus20 Aug 2026US 2026/0241331 A1Hunan University
Most cited
By later US patents
- Fuel tank inerting system71US 4,556,180 AThe Garrett Corporation · 1985
- Alkali enrichment mediated CO2 sequestration methods, and systems for practicing the same18US 9,707,513 B2Blue Planet, Ltd. · 2017
- Flat panel contactors and methods16US 9,541,302 B23M Innovative Properties Company · 2017
- Process for separation of gases with reduced maintenance costs14US 10,471,380 B2Evonik Fibres GmbH · 2019
- Aircraft fuel tank flammability reduction methods and systems and air separation methods using membranes13US 8,882,886 B2The Boeing Company · 2014