C08J 2381/00
Working-up: characterised by the use of macromolecular compounds obtained by reactions forming
Official title: Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
C08J2381/00 (Working-up: characterised by the use of macromolecular compounds obtained by reactions forming) appears on 681 US grants and 841 published applications in this corpus.
Search patents in C08J- Granted patents
- 681
- Published applications
- 841
- Assignees
- 452
- Inventors
- 2,212
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 8 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 10 | 0 |
| 1989 | 10 | 0 |
| 1990 | 20 | 0 |
| 1991 | 15 | 0 |
| 1992 | 18 | 0 |
| 1993 | 13 | 0 |
| 1994 | 13 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 2 |
| 2002 | 7 | 7 |
| 2003 | 8 | 11 |
| 2004 | 3 | 15 |
| 2005 | 8 | 12 |
| 2006 | 6 | 21 |
| 2007 | 6 | 19 |
| 2008 | 4 | 25 |
| 2009 | 10 | 35 |
| 2010 | 18 | 33 |
| 2011 | 17 | 28 |
| 2012 | 18 | 27 |
| 2013 | 21 | 24 |
| 2014 | 14 | 22 |
| 2015 | 19 | 32 |
| 2016 | 22 | 36 |
| 2017 | 22 | 46 |
| 2018 | 31 | 58 |
| 2019 | 28 | 59 |
| 2020 | 44 | 56 |
| 2021 | 36 | 50 |
| 2022 | 37 | 49 |
| 2023 | 31 | 61 |
| 2024 | 27 | 39 |
| 2025 | 33 | 43 |
| 2026 | 16 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Blend of polyarylether ketone copolymer6 Oct 2026US 12,753,305 B2Syensqo Specialty Polymers USA, LLC
- Particle-containing resin composition and molded product25 Aug 2026US 12,715,978 B2DIC Corporation
- Shape memory poly(β-hydroxythioether) foams rapidly produced from multifunctional epoxides and thiols18 Aug 2026US 12,708,892 B2Ohio University
- 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
- Systems and methods of polymeric sprinklers24 Sep 2026US 2026/0284456 A1Tyco Fire Products LP
- Polymeric materials comprising disulfide bridges, articles, and methods of making and using same24 Sep 2026US 2026/0286071 A13M Innovative Properties Company
- Process for Recycling Polythiourethanes, Thio Compounds, and Use Thereof24 Sep 2026US 2026/0286086 A1Bruno Bock GmbH
- 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
- Processes for making three-dimensional polymer networks27 Aug 2026US 2026/0250469 A1Safeguard Dx Ltd
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
- Reinforced plastic69US 4,680,224 APhillips Petroleum Company · 1987