C01B 32/00
Carbon
Official title: Carbon; Compounds thereof (C01B21/00, C01B23/00 take precedence; percarbonates C01B15/10; carbon black C09C1/48)
C01B32/00 (Carbon) appears on 11,661 US grants and 15,963 published applications in this corpus.
Search patents in C01B- Granted patents
- 11,661
- Published applications
- 15,963
- Assignees
- 4,921
- Inventors
- 28,998
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 73 | 0 |
| 1977 | 76 | 0 |
| 1978 | 81 | 0 |
| 1979 | 47 | 0 |
| 1980 | 50 | 0 |
| 1981 | 59 | 0 |
| 1982 | 43 | 0 |
| 1983 | 57 | 0 |
| 1984 | 50 | 0 |
| 1985 | 58 | 0 |
| 1986 | 45 | 0 |
| 1987 | 51 | 0 |
| 1988 | 47 | 0 |
| 1989 | 59 | 0 |
| 1990 | 58 | 0 |
| 1991 | 53 | 0 |
| 1992 | 57 | 0 |
| 1993 | 67 | 0 |
| 1994 | 73 | 0 |
| 1995 | 67 | 0 |
| 1996 | 62 | 0 |
| 1997 | 69 | 0 |
| 1998 | 63 | 0 |
| 1999 | 73 | 0 |
| 2000 | 62 | 0 |
| 2001 | 92 | 34 |
| 2002 | 79 | 169 |
| 2003 | 97 | 189 |
| 2004 | 132 | 243 |
| 2005 | 100 | 285 |
| 2006 | 141 | 315 |
| 2007 | 125 | 313 |
| 2008 | 131 | 364 |
| 2009 | 177 | 445 |
| 2010 | 307 | 604 |
| 2011 | 274 | 540 |
| 2012 | 311 | 596 |
| 2013 | 372 | 586 |
| 2014 | 406 | 710 |
| 2015 | 524 | 801 |
| 2016 | 575 | 694 |
| 2017 | 648 | 862 |
| 2018 | 591 | 841 |
| 2019 | 652 | 879 |
| 2020 | 681 | 886 |
| 2021 | 596 | 910 |
| 2022 | 641 | 941 |
| 2023 | 644 | 1007 |
| 2024 | 715 | 1061 |
| 2025 | 710 | 1004 |
| 2026 | 440 | 684 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Catalysts for cargen, methods of preparing, and uses of same6 Oct 2026US 12,752,259 B2Qatar Foundation for Education, Science and Community Development
- Complex oxides for reactive oxygen separation and related applications6 Oct 2026US 12,752,260 B2North Carolina State University
- Thermocatalytic decomposition of methane using catalyst system design and operational parameters to control product yield and properties6 Oct 2026US 12,753,072 B2Battelle Memorial Institute
- Method for preparing porous carbon structure having increased surface area and total pore volume, and porous carbon structure prepared using same6 Oct 2026US 12,753,079 B2Kolon Industries, Inc.
- System for preparing isotope-labeled carbon dioxide and method therefor6 Oct 2026US 12,753,080 B2Institute of Process Engineering, Chinese Academy of Sciences
- Carbon dioxide adsorption battery, charge/discharge device, and carbon dioxide concentration device8 Oct 2026US 2026/0307004 A1Kuraray Co., Ltd.
- Highly dispersed metal carbonate catalysts8 Oct 2026US 2026/0307063 A1BASF SE
- Methods of preparing hard carbon material and energy storage device and method of enhancing plateau capacity8 Oct 2026US 2026/0307995 A1National Tsing Hua University
- Negative electrode active material, method of manufacturing the negative electrode active material, and negative electrode including the negative electrode active material8 Oct 2026US 2026/0307996 A1Samsung SDI.Co., Ltd.
- Carbon nanotube dispersion liquid and method of producing same8 Oct 2026US 2026/0307997 A1Zeon Corporation
Most cited
By later US patents
- Carbide nanomaterials684US 6,190,634 B1President and Fellows of Harvard College · 2001
- Method of manufacturing inorganic nanotube516US 7,005,391 B2Samsung Electronics Co., Ltd. · 2006
- Method of producing regular arrays of nano-scale objects using nano-structured block-copolymeric materials513US 7,115,305 B2California Institute of Technology · 2006
- Method for forming conformal carbon films, structures conformal carbon film, and system of forming same486US 9,605,343 B2ASM IP Holding B. V. · 2017
- Aligned carbon nanotubes418US 10,343,920 B2ASM IP Holding B. V. · 2019