C08J 9/00
Working-up of macromolecular substances to porous or cellular articles or materials
Official title: Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof (mechanical aspects of shaping of plastics or substances in a plastic state for the production of porous or cellular articles B29C)
C08J9/00 (Working-up of macromolecular substances to porous or cellular articles or materials) appears on 10,977 US grants and 10,106 published applications in this corpus.
Search patents in C08J- Granted patents
- 10,977
- Published applications
- 10,106
- Assignees
- 3,631
- Inventors
- 21,982
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 174 | 0 |
| 1977 | 187 | 0 |
| 1978 | 200 | 0 |
| 1979 | 134 | 0 |
| 1980 | 175 | 0 |
| 1981 | 205 | 0 |
| 1982 | 163 | 0 |
| 1983 | 177 | 0 |
| 1984 | 194 | 0 |
| 1985 | 183 | 0 |
| 1986 | 159 | 0 |
| 1987 | 171 | 0 |
| 1988 | 145 | 0 |
| 1989 | 168 | 0 |
| 1990 | 181 | 0 |
| 1991 | 214 | 0 |
| 1992 | 243 | 0 |
| 1993 | 256 | 0 |
| 1994 | 216 | 0 |
| 1995 | 210 | 0 |
| 1996 | 202 | 0 |
| 1997 | 228 | 0 |
| 1998 | 244 | 0 |
| 1999 | 189 | 0 |
| 2000 | 201 | 0 |
| 2001 | 208 | 56 |
| 2002 | 189 | 176 |
| 2003 | 187 | 242 |
| 2004 | 144 | 228 |
| 2005 | 95 | 219 |
| 2006 | 85 | 228 |
| 2007 | 82 | 223 |
| 2008 | 67 | 222 |
| 2009 | 72 | 288 |
| 2010 | 106 | 363 |
| 2011 | 144 | 358 |
| 2012 | 178 | 378 |
| 2013 | 199 | 379 |
| 2014 | 248 | 434 |
| 2015 | 275 | 533 |
| 2016 | 307 | 524 |
| 2017 | 322 | 501 |
| 2018 | 342 | 577 |
| 2019 | 361 | 615 |
| 2020 | 421 | 584 |
| 2021 | 399 | 551 |
| 2022 | 369 | 622 |
| 2023 | 384 | 556 |
| 2024 | 402 | 550 |
| 2025 | 323 | 368 |
| 2026 | 249 | 331 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08J 9/04Working-up of macromolecular substances to porous or cellular articles or materials: using4,470
- C08J 9/0061Characterized by the use of several polymeric components2,102
- C08J 9/28Working-up of macromolecular substances to porous or cellular articles or materials: by1,337
- C08J 9/0014Use of organic additives1,286
- C08J 9/0066Use of inorganic compounding ingredients1,204
- C08J 9/36After-treatment1,108
- C08J 9/16Making expandable particles947
- C08J 9/22After-treatment of expandable particles831
All 20 subgroupsShow fewer
- C08J 9/32From compositions containing microballoons687
- C08J 9/26Working-up of macromolecular substances to porous or cellular articles or materials: by628
- C08J 9/30Working-up of macromolecular substances to porous or cellular articles or materials: by394
- C08J 9/02Working-up of macromolecular substances to porous or cellular articles or materials: using366
- C08J 9/0085Use of fibrous compounding ingredients359
- C08J 9/34Chemical features in the manufacture of articles consisting of a foamed macromolecular205
- C08J 9/35Composite foams, i.e. continuous macromolecular foams containing discontinuous cellular particles or fragments169
- C08J 9/0004Use of compounding ingredients, the chemical constitution of which is unknown, broadly159
- C08J 9/0095Mixtures of at least two compounding ingredients belonging to different one-dot groups141
- C08J 9/24Working-up of macromolecular substances to porous or cellular articles or materials: by94
- C08J 9/009Use of pretreated compounding ingredients73
- C08J 9/33Agglomerating foam fragments46
Recent patents
- Abrasive articles and methods and systems for generating and using the same6 Oct 2026US 12,752,398 B2Abrasive Technology, Inc.
- Polyolefin resin foam sheet and laminate6 Oct 2026US 12,753,287 B2Toray Industries, Inc.
- Functionalized porous composites6 Oct 2026US 12,753,288 B2Celanese International Corporation
- 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
- Blasthole stemming based on formaldehyde resins, system and charging method6 Oct 2026US 12,754,001 B2Oxiquim S.A.
- 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
- Polypropylene-based resin expanded bead and method for producing same8 Oct 2026US 2026/0308346 A1Jsp Corporation
- Porous alpha-1,3-glucan compositions8 Oct 2026US 2026/0308347 A1Nutrition & Biosciences USA 4, Inc.
- Sound absorption material and method of fabricating same8 Oct 2026US 2026/0308348 A1Agency for Science, Technology and Research
Most cited
By later US patents
- Medical devices and applications of polyhydroxyalkanoate polymers1,636US 6,838,493 B2Metabolix, Inc. · 2005
- Process for manufacturing biomedical foams1,536US 6,355,699 B1Ethicon, Inc. · 2002
- Aerogel metallic compositions1,501US 7,071,287 B2Aspen Aerogels, Inc. · 2006
- Fibrous absorbent material and methods of making the same1,170US 6,261,679 B1Kimberly-Clark Worldwide, Inc. · 2001
- Thin-unit-wet absorbent foam materials for aqueous body fluids and process for making same1,130US 5,387,207 AThe Procter & Gamble Company · 1995