B01D 71/522
Aromatic polyethers
Official title: {Aromatic polyethers}
B01D71/522 (Aromatic polyethers) appears on 268 US grants and 286 published applications in this corpus.
Search patents in B01D- Granted patents
- 268
- Published applications
- 286
- Assignees
- 188
- Inventors
- 791
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 10 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 9 |
| 2003 | 7 | 4 |
| 2004 | 2 | 13 |
| 2005 | 7 | 13 |
| 2006 | 3 | 11 |
| 2007 | 8 | 6 |
| 2008 | 6 | 6 |
| 2009 | 4 | 8 |
| 2010 | 7 | 9 |
| 2011 | 4 | 6 |
| 2012 | 5 | 8 |
| 2013 | 4 | 4 |
| 2014 | 6 | 9 |
| 2015 | 6 | 21 |
| 2016 | 11 | 7 |
| 2017 | 7 | 20 |
| 2018 | 3 | 14 |
| 2019 | 12 | 17 |
| 2020 | 16 | 18 |
| 2021 | 7 | 14 |
| 2022 | 12 | 19 |
| 2023 | 10 | 16 |
| 2024 | 15 | 13 |
| 2025 | 8 | 14 |
| 2026 | 9 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thin-film composite membranes synthesized by multi-step coating methods18 Aug 2026US 12,708,881 B2Katholieke Universiteit Leuven
- Membrane deoxygenation with enhanced structural integrity9 Jun 2026US 12,650,105 B2Hamilton Sundstrand Corporation
- Membrane comprising a blend of polyarylethersulfone and polyaryletherketone and method for manufacturing thereof19 May 2026US 12,630,706 B2Syensqo Specialty Polymers USA, LLC
- Apparatus for enriching the concentration of trace components in air flow31 Mar 2026US 12,589,361 B2Virginia Tech Intellectual Properties, Inc.
- Crosslinked facilitated transport membrane for hydrogen purification from coal-derived syngas31 Mar 2026US 12,589,363 B2Ohio State Innovation Foundation
- Polyether Sulfone Copolymers and Articles Prepared Therefrom8 Oct 2026US 2026/0308326 A1Thermo Fisher Bioprocessing Inc.
- Membrane comprising a blend of polyarylethersulfone and polyaryletherketone and method for manufacturing thereof3 Sep 2026US 2026/0258241 A1Syensqo Specialty Polymers USA, LLC
- Polysilsesquioxane/polyetheretherketone composite membranes and methods for preparing the same27 Aug 2026US 2026/0249250 A1Changzhou University
- Oxidation resistant membranes30 Jul 2026US 2026/0216669 A1BASF SE
- Raw Material Solution Concentration System30 Apr 2026US 2026/0115663 A1Asahi Kasei Kabushiki Kaisha
Most cited
By later US patents
- Composite solid polymer electrolyte membranes346US 7,550,216 B2Foster-Miller, Inc. · 2009
- Method of making membranes for gas separation and the composite membranes163US 4,602,922 AThe Research Foundation of State University of New York · 1986
- Composite solid polymer electrolyte membranes158US 6,248,469 B1Foster-Miller, Inc. · 2001
- Polymer electrolyte membrane, and process for the production thereof109US 5,438,082 AHoechst Aktiengesellschaft · 1995
- Polymer membranes on the basis of polyvinylidene fluoride, a process for the production thereof and their use81US 5,151,193 AFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. · 1992