C01B 32/154
Preparation
C01B32/154 (Preparation) appears on 163 US grants and 185 published applications in this corpus.
Search patents in C01B- Granted patents
- 163
- Published applications
- 185
- Assignees
- 98
- Inventors
- 330
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 10 |
| 2003 | 2 | 10 |
| 2004 | 8 | 9 |
| 2005 | 7 | 10 |
| 2006 | 9 | 3 |
| 2007 | 3 | 4 |
| 2008 | 5 | 11 |
| 2009 | 1 | 5 |
| 2010 | 6 | 8 |
| 2011 | 5 | 4 |
| 2012 | 3 | 5 |
| 2013 | 2 | 1 |
| 2014 | 3 | 2 |
| 2015 | 6 | 14 |
| 2016 | 6 | 10 |
| 2017 | 14 | 7 |
| 2018 | 5 | 7 |
| 2019 | 2 | 9 |
| 2020 | 3 | 7 |
| 2021 | 11 | 12 |
| 2022 | 5 | 4 |
| 2023 | 9 | 20 |
| 2024 | 7 | 4 |
| 2025 | 8 | 6 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Two-dimensional polymeric fullerene and preparation method thereof14 Jul 2026US 12,679,732 B2Institute of Chemistry, Chinese Academy of Sciences
- Copper doped carbon-based nanomaterial and methods of forming the same16 Jun 2026US 12,655,024 B2Nabors Energy Transition Solutions LLC
- Bromine doped carbon-based nanomaterial and methods of forming the same19 May 2026US 12,630,427 B2Nabors Energy Transition Solutions LLC
- Nanostructured carbons and methods of preparing the same14 Apr 2026US 12,600,633 B2Board of Regents, The University of Texas System
- Molding material for producing carbon clusters and a method for manufacturing thereof3 Feb 2026US 12,540,078 B2Mitsubishi Coporation Life Sciences Ltd.
- Rapid and non-destructive in-situ formation of nitrogen-doped carbon nanomaterials and the methods of production thereof23 Apr 2026US 2026/0109606 A1Trimtabs Ltd
- Methods for producing graphene from coal15 Jan 2026US 2026/0015241 A1Carbon Holdings Intellectual Properties, LLC
- Non-Wettable Superhydrophobic Fullerite Films and Coatings11 Dec 2025US 2025/0376377 A1University of Central Florida Research Foundation, Inc.
- Electrolysis methods that utilize carbon dioxide and a non-iron additive for making desried nanocarbon allotropes18 Sep 2025US 2025/0290209 A1C2Cnt LLC
- Electrolysis methods that utilize carbon dioxide and anon-iron additive for making desired nanocarbon allotropes11 Sep 2025US 2025/0283225 A1C2Cnt LLC
Most cited
By later US patents
- Electric arc process for making fullerenes119US 5,227,038 AWilliam Marsh Rice University · 1993
- Process for making fullerenes by the laser evaporation of carbon109US 5,300,203 AWilliam Marsh Rice University · 1994
- Method for growing single-wall carbon nanotubes utilizing seed molecules103US 6,756,025 B2William Marsh Rice University · 2004
- Production of fullerenic nanostructures in flames83US 5,985,232 AMassachusetts Institute of Technology · 1999
- Conversion of carbon or carbon-containing compounds in a plasma82US 6,099,696 AArmines · 2000