C08J 9/28
Working-up of macromolecular substances to porous or cellular articles or materials: by
Official title: by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
C08J9/28 (Working-up of macromolecular substances to porous or cellular articles or materials: by) appears on 1,337 US grants and 1,306 published applications in this corpus.
Search patents in C08J- Granted patents
- 1,337
- Published applications
- 1,306
- Assignees
- 761
- Inventors
- 3,476
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 13 | 0 |
| 1978 | 17 | 0 |
| 1979 | 13 | 0 |
| 1980 | 12 | 0 |
| 1981 | 13 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 14 | 0 |
| 1985 | 13 | 0 |
| 1986 | 12 | 0 |
| 1987 | 12 | 0 |
| 1988 | 18 | 0 |
| 1989 | 26 | 0 |
| 1990 | 24 | 0 |
| 1991 | 16 | 0 |
| 1992 | 20 | 0 |
| 1993 | 31 | 0 |
| 1994 | 23 | 0 |
| 1995 | 21 | 0 |
| 1996 | 23 | 0 |
| 1997 | 18 | 0 |
| 1998 | 33 | 0 |
| 1999 | 28 | 0 |
| 2000 | 22 | 0 |
| 2001 | 17 | 1 |
| 2002 | 16 | 12 |
| 2003 | 10 | 16 |
| 2004 | 11 | 14 |
| 2005 | 3 | 14 |
| 2006 | 11 | 13 |
| 2007 | 4 | 21 |
| 2008 | 7 | 21 |
| 2009 | 7 | 29 |
| 2010 | 9 | 37 |
| 2011 | 13 | 42 |
| 2012 | 23 | 43 |
| 2013 | 31 | 49 |
| 2014 | 41 | 47 |
| 2015 | 35 | 73 |
| 2016 | 47 | 53 |
| 2017 | 50 | 87 |
| 2018 | 48 | 93 |
| 2019 | 63 | 98 |
| 2020 | 71 | 92 |
| 2021 | 81 | 99 |
| 2022 | 55 | 95 |
| 2023 | 74 | 73 |
| 2024 | 59 | 75 |
| 2025 | 62 | 66 |
| 2026 | 34 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hollow fiber membrane material for high-humidification hydrogen fuel cell humidifier and preparation method and application thereof6 Oct 2026US 12,753,530 B2University of Electronic Science and Technology of China
- Porous resin used to solid phase synthesis and preparation method therefor22 Sep 2026US 12,742,051 B2Sunresin New Materials Co. Ltd.
- Heat resistant aerogel materials15 Sep 2026US 12,735,554 B2Aspen Aerogels, Inc.
- Porous film with low dielectric property and manufacturing method thereof8 Sep 2026US 12,729,273 B2Kyungpook National University Industry-Academic Cooperation Foundation
- Low-dielectric and low-thermalconductivity aerogel composites and preparation method thereof1 Sep 2026US 12,723,142 B2Taiwan Aerogel Technology Material Co., Ltd.
- Porous alpha-1,3-glucan compositions8 Oct 2026US 2026/0308347 A1Nutrition & Biosciences USA 4, Inc.
- Transparent glazing materials, assemblies including the glazing materials, and methods of forming same17 Sep 2026US 2026/0275067 A1The Regents of the University of Colorado, a body corporate
- Method of forming a composition and the composition formed therefrom17 Sep 2026US 2026/0279766 A1Teebs R&D, LLC
- Polyamide Aerogel and Preparation Method Therefor3 Sep 2026US 2026/0258215 A1Microvast Advanced Membranes Inc.
- Frameless motor based on porous hydrogel and heat dissipation method thereof27 Aug 2026US 2026/0254303 A1Zhejiang University
Most cited
By later US patents
- Process for manufacturing biomedical foams1,536US 6,355,699 B1Ethicon, Inc. · 2002
- Aerogel metallic compositions1,501US 7,071,287 B2Aspen Aerogels, Inc. · 2006
- Thin-unit-wet absorbent foam materials for aqueous body fluids and process for making same1,130US 5,387,207 AThe Procter & Gamble Company · 1995
- Porous polymeric matrices made of natural polymers and synthetic polymers and optionally at least one cation and methods of making789US 7,446,131 B1The United States of America as represented by the Secretary of Agriculture · 2008
- Porous and transparent poly(vinyl alcohol) gel and method of manufacturing the same433US 4,663,358 ABiomaterials Universe, Inc. · 1987