C08J 9/04
Working-up of macromolecular substances to porous or cellular articles or materials: using
Official title: using blowing gases generated by a previously added blowing agent
C08J9/04 (Working-up of macromolecular substances to porous or cellular articles or materials: using) appears on 4,470 US grants and 4,620 published applications in this corpus.
Search patents in C08J- Granted patents
- 4,470
- Published applications
- 4,620
- Assignees
- 1,602
- Inventors
- 9,387
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 47 | 0 |
| 1977 | 45 | 0 |
| 1978 | 59 | 0 |
| 1979 | 42 | 0 |
| 1980 | 45 | 0 |
| 1981 | 62 | 0 |
| 1982 | 43 | 0 |
| 1983 | 56 | 0 |
| 1984 | 60 | 0 |
| 1985 | 64 | 0 |
| 1986 | 54 | 0 |
| 1987 | 63 | 0 |
| 1988 | 37 | 0 |
| 1989 | 36 | 0 |
| 1990 | 63 | 0 |
| 1991 | 90 | 0 |
| 1992 | 100 | 0 |
| 1993 | 113 | 0 |
| 1994 | 101 | 0 |
| 1995 | 105 | 0 |
| 1996 | 95 | 0 |
| 1997 | 118 | 0 |
| 1998 | 117 | 0 |
| 1999 | 96 | 0 |
| 2000 | 84 | 0 |
| 2001 | 85 | 24 |
| 2002 | 91 | 71 |
| 2003 | 70 | 87 |
| 2004 | 62 | 94 |
| 2005 | 29 | 75 |
| 2006 | 29 | 89 |
| 2007 | 39 | 87 |
| 2008 | 22 | 83 |
| 2009 | 29 | 113 |
| 2010 | 34 | 135 |
| 2011 | 52 | 145 |
| 2012 | 72 | 172 |
| 2013 | 72 | 169 |
| 2014 | 109 | 213 |
| 2015 | 117 | 236 |
| 2016 | 138 | 247 |
| 2017 | 138 | 239 |
| 2018 | 161 | 262 |
| 2019 | 146 | 305 |
| 2020 | 173 | 280 |
| 2021 | 175 | 261 |
| 2022 | 188 | 332 |
| 2023 | 179 | 294 |
| 2024 | 199 | 286 |
| 2025 | 147 | 163 |
| 2026 | 119 | 158 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polyolefin resin foam sheet and laminate6 Oct 2026US 12,753,287 B2Toray Industries, Inc.
- Biodegradable compositions and articles made from cellulose acetate29 Sep 2026US 12,747,333 B2Eastman Chemical Company
- Polyol premixes, thermally insulating rigid polyurethane foams and methods for their production22 Sep 2026US 12,742,034 B2Covestro LLC
- Compositions and uses of trans-1,1,1,4,4,4-hexafluoro-2-butene and 1,1-difluoroethane (R-152A)15 Sep 2026US 12,734,388 B2The Chemours Company Fc, LLC
- Process for foaming using carbon dioxide solution15 Sep 2026US 12,735,544 B2Dmn Material Technology (Jiangsu) Limited
- Recycled polymer compositions and methods thereof8 Oct 2026US 2026/0308340 A1Braskem S/A
- Chemical foaming of interior components8 Oct 2026US 2026/0308345 A1GM Global Technology Operations LLC
- Cyclic poly(hydroxy-urethane) foams in wall and roofing insulation1 Oct 2026US 2026/0297257 A1Johns Manville
- Method for producing polyolefin-based resin expanded beads and polyolefin-based resin expanded beads1 Oct 2026US 2026/0297276 A1Jsp Corporation
- Method for producing polyolefin-based resin expanded beads and polyolefin-based resin expanded beads1 Oct 2026US 2026/0297277 A1Jsp Corporation
Most cited
By later US patents
- Microcellular thermoplastic foamed with supercritical fluid328US 5,158,986 AMassachusetts Institute of Technology · 1992
- Adhesive protein foam for surgical and/or therapeutic uses222US 6,730,299 B1Imedex Biomateriaux · 2004
- Microcellular closed cell foams and their method of manufacture215US 4,473,665 AMassachusetts Institute of Technology · 1984
- Low density fiber-reinforced plastic composites206US 4,643,940 AThe Dow Chemical Company · 1987
- Dry expansible sealant and baffle composition and product204US 5,266,133 AE. I. Du Pont de Nemours and Company · 1993