B01J 21/18
Carbon
B01J21/18 (Carbon) appears on 1,868 US grants and 2,228 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,868
- Published applications
- 2,228
- Assignees
- 1,219
- Inventors
- 5,929
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 12 | 0 |
| 1984 | 7 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 1 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 12 | 0 |
| 1993 | 7 | 0 |
| 1994 | 20 | 0 |
| 1995 | 22 | 0 |
| 1996 | 16 | 0 |
| 1997 | 17 | 0 |
| 1998 | 20 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 23 | 9 |
| 2002 | 22 | 43 |
| 2003 | 37 | 61 |
| 2004 | 41 | 51 |
| 2005 | 33 | 69 |
| 2006 | 44 | 68 |
| 2007 | 34 | 59 |
| 2008 | 25 | 67 |
| 2009 | 38 | 76 |
| 2010 | 56 | 92 |
| 2011 | 59 | 76 |
| 2012 | 55 | 101 |
| 2013 | 62 | 74 |
| 2014 | 65 | 79 |
| 2015 | 65 | 101 |
| 2016 | 77 | 100 |
| 2017 | 68 | 101 |
| 2018 | 77 | 95 |
| 2019 | 97 | 101 |
| 2020 | 84 | 142 |
| 2021 | 97 | 152 |
| 2022 | 93 | 135 |
| 2023 | 108 | 121 |
| 2024 | 103 | 112 |
| 2025 | 90 | 92 |
| 2026 | 61 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Carbon dioxide processing agent and method for producing same22 Sep 2026US 12,741,272 B2Eau De Merus Co., Ltd.
- Method and device for the photoinduced conversion of CO2 to methanol22 Sep 2026US 12,741,919 B2Instytut Niskich Temperatur I Badan Strukturalnych Pan Im.W. Trzebiatowskiego
- Organic-inorganic composite catalyst, air purification device including the organic-inorganic composite catalyst, and method of regenerating the organic-inorganic composite catalyst1 Sep 2026US 12,722,149 B2Jk Global Co., Ltd.
- High-carbon biogenic reagents and uses thereof1 Sep 2026US 12,723,211 B2Carbon Technology Holdings, LLC
- Self-healing surface coating systems for passive pollutant degradation1 Oct 2026US 2026/0295562 A1
- Method for synthesizing cyclic ketone compound from diol and ketone24 Sep 2026US 2026/0285793 A1Zhejiang Sainon Chemical Co., Ltd
- Belly Blade Mounted to Center of Mower Equipment17 Sep 2026US 2026/0275210 A1
- Metal phosphide-graphene aerogel catalyst for hydrolysis of ammonia borane, method for preparing the same, and hydrogen production system for hydrolysis of ammonia borane comprising the same10 Sep 2026US 2026/0264069 A1The Hong Kong Polytechnic University
- Carbon material, catalyst, dispersion, electrode, battery, and electrolysis device10 Sep 2026US 2026/0265061 A1DIC Corporation
Most cited
By later US patents
- Process for converting a metal carbide to carbon by etching in halogens566US 6,579,833 B1The Board of Trustees of the University of Illinois · 2003
- Method of producing carbon nanotubes254US 6,333,016 B1The Board of Regents of the University of Oklahoma · 2001
- Carbon fibrils and method for producing same250US 5,165,909 AHyperion Catalysis Int'l., Inc. · 1992
- Device for removal of contaminants from fluid streams235US 5,750,026 ACorning Incorporated · 1998
- Carbon fibers formed from single-wall carbon nanotubes204US 6,683,783 B1William Marsh Rice University · 2004