B01D 2325/02831
Less than 1 nm
Official title: less than 1 nm
B01D2325/02831 (Less than 1 nm) appears on 79 US grants and 157 published applications in this corpus.
Search patents in B01D- Granted patents
- 79
- Published applications
- 157
- Assignees
- 117
- Inventors
- 475
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 4 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 7 |
| 2016 | 5 | 8 |
| 2017 | 3 | 13 |
| 2018 | 8 | 7 |
| 2019 | 11 | 13 |
| 2020 | 8 | 16 |
| 2021 | 6 | 9 |
| 2022 | 4 | 4 |
| 2023 | 12 | 18 |
| 2024 | 4 | 15 |
| 2025 | 8 | 18 |
| 2026 | 6 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hollow fiber membrane and method for producing same28 Jul 2026US 12,691,415 B2Kolon Industries, Inc.
- Method for converting osmotic energy into hydraulic energy and for desalination14 Jul 2026US 12,678,737 B2Centre National De La Recherche Scientifique
- Metal-organic framework material separation membrane, preparation method therefor, and use thereof21 Apr 2026US 12,605,678 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Cross-linkable zwitterionic polymers and their use in membrane filters21 Apr 2026US 12,605,680 B2Trustees of Tufts College
- Raw-material liquid concentration system and concentration apparatus10 Mar 2026US 12,569,811 B2Asahi Kasei Kabushiki Kaisha
- Purge device and production method for separation membrane1 Oct 2026US 2026/0295514 A1Mitsubishi Heavy Industries, Ltd.
- Separation membrane, method for manufacturing same, membrane module for at least one of deaeration and aeration, and device for at least one of deaeration and aeration17 Sep 2026US 2026/0273477 A1Toray Industries, Inc.
- Process for the degradation of per- and polyfluorinated substances (pfas) using catalytic ozonolysis17 Sep 2026US 2026/0274720 A1The Board of Trustees of The University of Alabama
- Carbon molecular sieve membranes, methods of manufacturing, and use thereof13 Aug 2026US 2026/0233168 A1Dow Global Technologies LLC
- Carbon molecular sieve membranes, methods of manufacturing, and use thereof13 Aug 2026US 2026/0233172 A1Dow Global Technologies LLC
Most cited
By later US patents
- Methods for perforating two-dimensional materials using a broad ion field15US 9,870,895 B2Lockheed Martin Corporation · 2018
- Method of enriching chlorine gas9US 6,152,986 APPG Industries Ohio, Inc. · 2000
- Biomimetic membranes and methods of making biomimetic membranes7US 9,486,742 B1Sandia Corporation · 2016
- Selective interfacial mitigation of graphene defects5US 10,981,120 B2Lockheed Martin Corporation · 2021
- Hollow fibres5US 8,669,200 B2University of Bath · 2014