B01D 2325/06
Surface irregularities
B01D2325/06 (Surface irregularities) appears on 140 US grants and 253 published applications in this corpus.
Search patents in B01D- Granted patents
- 140
- Published applications
- 253
- Assignees
- 136
- Inventors
- 582
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 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 | 3 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 6 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 2 | 7 |
| 2011 | 2 | 4 |
| 2012 | 3 | 4 |
| 2013 | 1 | 9 |
| 2014 | 4 | 14 |
| 2015 | 5 | 13 |
| 2016 | 9 | 10 |
| 2017 | 2 | 12 |
| 2018 | 7 | 16 |
| 2019 | 11 | 19 |
| 2020 | 10 | 13 |
| 2021 | 23 | 14 |
| 2022 | 11 | 13 |
| 2023 | 10 | 26 |
| 2024 | 11 | 23 |
| 2025 | 18 | 23 |
| 2026 | 5 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Formed sheet membrane element and filtration system4 Aug 2026US 12,697,586 B2Fibracast Ltd.
- Composite separator for gas separation21 Jul 2026US 12,685,963 B2SK ie technology Co., Ltd.
- Method of creating greater adhesion between asymmetric PVDF active layer and PEI fiber support to obtain multilayer janus membrane30 Jun 2026US 12,667,812 B1King Fahd University of Petroleum and Minerals
- High flux nanofiltration membrane2 Jun 2026US 12,643,075 B1King Fahd University of Petroleum and Minerals
- Porous liquid, self-replenishing porous liquid and methods of making and using the same24 Mar 2026US 12,582,939 B2ExxonMobil Technology and Engineering Company
- Pillared clay mineral membranes1 Oct 2026US 2026/0295541 A1The University of Chicago
- Composite separator for gas separation24 Sep 2026US 2026/0284586 A1SK ie technology Co., Ltd.
- Hollow fiber membrane and hollow fiber membrane module6 Aug 2026US 2026/0225044 A1Toray Industries, Inc.
- Lithium-selective transmission membrane and method for manufacturing lithium-selective transmission membrane6 Aug 2026US 2026/0226643 A1Japan Fine Ceramics Co., LTD.
- Air filter medium, method for using air filter medium, and air treatment apparatus9 Jul 2026US 2026/0192232 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Membrane unit and apparatus for removing metabolite contaminants from blood25US 4,206,050 AHoechst Aktiengesellschaft · 1980
- Electrochemical ion exchange with textured membranes and cartridge22US 7,780,833 B22010
- Slippery surfaces with high pressure stability, optical transparency, and self-healing characteristics22US 9,121,307 B2President and Fellows of Harvard College · 2015
- Formed sheet membrane element and filtration system22US 9,492,792 B2Fibracast Ltd. · 2016
- Airfoil-shaped micro-mixers for reducing fouling on membrane surfaces20US 8,292,492 B2Sandia Corporation · 2012