B01D 69/043
Characterised by the tube diameter
Official title: {characterised by the tube diameter}
B01D69/043 (Characterised by the tube diameter) appears on 34 US grants and 44 published applications in this corpus.
Search patents in B01D- Granted patents
- 34
- Published applications
- 44
- Assignees
- 30
- Inventors
- 94
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 0 |
| 2011 | 0 | 4 |
| 2012 | 2 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 2 | 3 |
| 2019 | 0 | 4 |
| 2020 | 4 | 6 |
| 2021 | 3 | 3 |
| 2022 | 3 | 3 |
| 2023 | 5 | 4 |
| 2024 | 3 | 4 |
| 2025 | 2 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mixed gas separation method and mixed gas separation apparatus22 Sep 2026US 12,741,246 B2NGK Insulators, Ltd.
- Method of manufacturing a single-piece column structure for the separation of a fluid medium12 Aug 2025US 12,383,868 B2Technologies Avancees Et Membranes Industrielles
- Thin wall polyether block amide membrane tubing and module22 Jul 2025US 12,364,951 B2Ffi Ionix IP, Inc.
- Cross-flow membrane filtration channel24 Sep 2024US 12,097,469 B2Nanyang Technological University
- Blood processing apparatus and method for destroying cancer metastasis in vivo27 Aug 2024US 12,070,541 B2Orth Consulting, LLC
- Method for nanofiltration of a solute-containing composition7 May 2026US 2026/0124585 A1King Fahd University of Petroleum and Minerals
- Preparation method for tubular gas-permeable membrane and wastewater treatment of ammonia nitrogen removal process30 Apr 2026US 2026/0115668 A1China Haisum Engineering Co., Ltd.
- Membrane separation device, membrane separation system, and method for operating membrane separation device25 Dec 2025US 2025/0387759 A1Nitto Denko Corporation
- Penta-amine-impregnated ultrafiltration support matrix for rapid fabrication of a hyper-cross-linked polyamide membrane6 Mar 2025US 2025/0073645 A1King Fahd University of Petroleum and Minerals
- Cross-flow membrane filtration channel9 Jan 2025US 2025/0010244 A1Nanyang Technological University
Most cited
By later US patents
- Closed hemapheresis system and method178US 4,776,964 A1988
- Closed hemapheresis system and method158US 4,911,833 A1990
- Process for producing microporous tubes of polytetrafluoroethylene45US 4,250,138 ASumitomo Electric Industries, Ltd. · 1981
- Microporous tubes37US 4,177,334 ASumitomo Electric Industries, Ltd. · 1979
- Asymmetric nanotube containing membranes9US 8,196,756 B2NanOasis · 2012