C04B 38/0022
Obtained by a chemical conversion or reaction other than those relating to
Official title: {obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors}
C04B38/0022 (Obtained by a chemical conversion or reaction other than those relating to) appears on 457 US grants and 423 published applications in this corpus.
Search patents in C04B- Granted patents
- 457
- Published applications
- 423
- Assignees
- 306
- Inventors
- 1,241
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 10 | 0 |
| 1990 | 9 | 0 |
| 1991 | 11 | 0 |
| 1992 | 3 | 0 |
| 1993 | 12 | 0 |
| 1994 | 7 | 0 |
| 1995 | 12 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 16 | 0 |
| 2000 | 9 | 0 |
| 2001 | 15 | 4 |
| 2002 | 13 | 17 |
| 2003 | 16 | 27 |
| 2004 | 16 | 19 |
| 2005 | 11 | 20 |
| 2006 | 18 | 25 |
| 2007 | 4 | 22 |
| 2008 | 9 | 21 |
| 2009 | 12 | 27 |
| 2010 | 19 | 10 |
| 2011 | 23 | 22 |
| 2012 | 11 | 22 |
| 2013 | 14 | 19 |
| 2014 | 14 | 19 |
| 2015 | 13 | 11 |
| 2016 | 18 | 15 |
| 2017 | 8 | 12 |
| 2018 | 10 | 9 |
| 2019 | 9 | 17 |
| 2020 | 8 | 16 |
| 2021 | 10 | 13 |
| 2022 | 13 | 18 |
| 2023 | 14 | 15 |
| 2024 | 10 | 9 |
| 2025 | 13 | 11 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lightweight, high-precision silicon carbide aerospace mirror19 May 2026US 12,631,803 B2Raytheon Company
- Bio-based carbon foam31 Mar 2026US 12,590,197 B2Stora Enso OYJ
- Silicon-carbon composites17 Mar 2026US 12,577,114 B2Group14 Technologies, Inc.
- Carbon-based porous material and preparation method and use thereof10 Feb 2026US 12,545,589 B2China Petroleum & Chemical Corporation
- Nanoporous structures and assemblies incorporating the same13 Jan 2026US 12,522,544 B2University of Massachusetts
- Carbon dioxide removing thermal insulation material composition and production method thereof9 Jul 2026US 2026/0193885 A1Empa EidgenöSsische MaterialprüFungs- Und Forschungsanstalt
- Hard carbon material, secondary battery, and electric device11 Jun 2026US 2026/0159396 A1Ningde Amperex Technology Limited
- Preform for ceramic matrix composite, method of making a ceramic matrix composite and ceramic matrix composite26 Mar 2026US 2026/0085013 A1Rtx Corporation
- Ceramic composite component7 Aug 2025US 2025/0250208 A1General Electric Company
- An article comprising a composite comprising graphite5 Jun 2025US 2025/0178080 A1Foseco International Limited
Most cited
By later US patents
- Method for manufacturing a porous ceramic scaffold having an organic/inorganic hybrid coating layer containing a bioactive factor777US 8,734,831 B2Snu R&Db Foundation · 2014
- Carbon supercapacitor electrode materials219US 5,993,996 AInorganic Specialists, Inc. · 1999
- Process for the preparation of nanostructured materials191US 7,056,455 B2Carnegie Mellon University · 2006
- Supercapacitors based on carbon foams189US 5,260,855 A1993
- Low density open cell organic foams, low density open cell carbon foams, and methods for preparing same146US 5,945,084 AOcellus, Inc. · 1999