B01D 3/145
One step being separation by permeation
Official title: {One step being separation by permeation}
B01D3/145 (One step being separation by permeation) appears on 142 US grants and 199 published applications in this corpus.
Search patents in B01D- Granted patents
- 142
- Published applications
- 199
- Assignees
- 144
- Inventors
- 443
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 5 |
| 2010 | 1 | 3 |
| 2011 | 3 | 6 |
| 2012 | 5 | 6 |
| 2013 | 5 | 5 |
| 2014 | 2 | 2 |
| 2015 | 4 | 6 |
| 2016 | 4 | 12 |
| 2017 | 8 | 13 |
| 2018 | 6 | 9 |
| 2019 | 12 | 14 |
| 2020 | 15 | 20 |
| 2021 | 13 | 22 |
| 2022 | 12 | 12 |
| 2023 | 15 | 19 |
| 2024 | 15 | 14 |
| 2025 | 10 | 18 |
| 2026 | 9 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods of dewatering of alcoholic solutions via forward osmosis and related systems6 Oct 2026US 12,752,239 B2Porifera, Inc.
- Alkylated cyclodextrin compositions and processes for preparing and using the same4 Aug 2026US 12,698,348 B2CyDex Pharmaceuticals, Inc.
- Facility and method for producing biomethane with limited methane loss and limited CO2 emissions30 Jun 2026US 12,667,805 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- System and method for reclaiming solvent2 Jun 2026US 12,643,071 B2Donaldson Company, Inc.
- Separation and recovery method for boron trifluoride and complex thereof in olefin polymerization reaction5 May 2026US 12,617,689 B2PetroChina Company Limited
- Systems and methods for using facilitated transport membranes to separate olefins and paraffins8 Oct 2026US 2026/0308087 A1
- Method for producing bioethanol and device for producing bioethanol8 Oct 2026US 2026/0308643 A1ARKHE Co., Ltd.
- System for purifying n-methyl-2-pyrrolidone, and method therefor17 Sep 2026US 2026/0273455 A1Solis S.r.l.
- Process and system for dehydrating a product stream in ethanol production10 Sep 2026US 2026/0263961 A1Whitefox Technologies Limited
- Methanol Production System that Reuses Unreacted Gas for Efficient Methanol Production10 Sep 2026US 2026/0264037 A1Doosan Enerbility Co., Ltd.
Most cited
By later US patents
- Method for concentrating water-soluble organic material50US 7,594,981 B2Mitsubishi Chemical Corporation · 2009
- Separation of organic mixtures using gas separation or pervaporation and dephlegmation31US 6,899,743 B2Membrane Technology and Research, Inc. · 2005
- Membrane-based hybrid process for separation of mixtures of organics, solids, and water24US 8,425,734 B2I3 Nanotec LLC · 2013
- Ethanol processing with vapour separation membranes21US 8,128,826 B2Parker Filtration B.V. · 2012
- Combination multi-effect distillation and multi-stage flash evaporation system16US 9,539,522 B1Kuwait Institute for Scientific Research · 2017