C08J 2381/06
Polysulfones
Official title: Polysulfones; Polyethersulfones
C08J2381/06 (Polysulfones) appears on 344 US grants and 476 published applications in this corpus.
Search patents in C08J- Granted patents
- 344
- Published applications
- 476
- Assignees
- 274
- Inventors
- 1,214
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 4 |
| 2003 | 6 | 8 |
| 2004 | 3 | 12 |
| 2005 | 5 | 9 |
| 2006 | 4 | 18 |
| 2007 | 4 | 14 |
| 2008 | 4 | 18 |
| 2009 | 7 | 20 |
| 2010 | 12 | 23 |
| 2011 | 15 | 21 |
| 2012 | 8 | 19 |
| 2013 | 17 | 14 |
| 2014 | 12 | 14 |
| 2015 | 13 | 21 |
| 2016 | 12 | 20 |
| 2017 | 14 | 28 |
| 2018 | 13 | 29 |
| 2019 | 21 | 37 |
| 2020 | 19 | 33 |
| 2021 | 25 | 22 |
| 2022 | 14 | 19 |
| 2023 | 16 | 29 |
| 2024 | 10 | 9 |
| 2025 | 15 | 23 |
| 2026 | 7 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Blend of polyarylether ketone copolymer6 Oct 2026US 12,753,305 B2Syensqo Specialty Polymers USA, LLC
- Method for preparing a novel guanidine-based composite nanofiltration flat-sheet membrane21 Jul 2026US 12,685,969 B2Tongji University
- Porous membranes for high pressure filtration7 Jul 2026US 12,673,303 B2Syensqo Specialty Polymers USA, LLC
- Carbon fiber composite material9 Jun 2026US 12,649,833 B2Shin-Etsu Chemical Co., Ltd.
- Porous carbon composite material and manufacturing method thereof31 Mar 2026US 12,590,000 B2National Tsing Hua University
- High-pressure reverse osmosis membrane based on pectin-assisted interfacial polymerization and preparation method therefor17 Sep 2026US 2026/0273475 A1Shandong Industrial Institute of Seawater Desalination and Multipurpose Utilization
- Polymer, electrolyte material, electrolyte membrane, electrolyte membrane with catalyst layer, membrane electrode assembly, solid polymer fuel cell, and solid polymer water electrolysis device13 Aug 2026US 2026/0237705 A1Tosoh Corporation
- Material23 Jul 2026US 2026/0208124 A1
- Preheating and thermoforming polysulfone film into dental aligners16 Jul 2026US 2026/0199061 A1Bixby International Corporation
- High temperature dielectric polymers and films25 Jun 2026US 2026/0179842 A1The Regents of the University of California
Most cited
By later US patents
- Composite solid polymer electrolyte membranes158US 6,248,469 B1Foster-Miller, Inc. · 2001
- Integral asymmetric polyether-sulfone membrane, process for its production, and use for ultrafiltration and microfiltration101US 4,976,859 AAkzo N. V. · 1990
- Polymer treatments76US 5,453,467 ABiocompatibles Limited · 1995
- Solvent resistant polysulfone and polyethersulfone compositions71US 4,414,269 AThe Boeing Company · 1983
- Method of producing fibre-reinforced composition57US 4,541,884 AImperial Chemical Industries PLC · 1985