C01B 33/025
With carbon or a solid carbonaceous material, i.e. carbo-thermal process
Official title: with carbon or a solid carbonaceous material, i.e. carbo-thermal process
C01B33/025 (With carbon or a solid carbonaceous material, i.e. carbo-thermal process) appears on 77 US grants and 89 published applications in this corpus.
Search patents in C01B- Granted patents
- 77
- Published applications
- 89
- Assignees
- 62
- Inventors
- 204
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 2 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 14 |
| 2012 | 1 | 6 |
| 2013 | 4 | 7 |
| 2014 | 2 | 1 |
| 2015 | 0 | 3 |
| 2016 | 2 | 1 |
| 2017 | 3 | 3 |
| 2018 | 0 | 6 |
| 2019 | 1 | 2 |
| 2020 | 4 | 1 |
| 2021 | 2 | 4 |
| 2022 | 2 | 8 |
| 2023 | 2 | 9 |
| 2024 | 6 | 11 |
| 2025 | 2 | 1 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Circular carbon process29 Sep 2026US 12,747,159 B2BASF SE
- Apparatus for producing reduced silicon nanopowder using laser30 Jun 2026US 12,668,492 B2Knu-Industry Cooperation Foundation
- Silicon composition and methods of forming the same while forming a silicon dioxide doped carbon-based nanomaterial9 Jun 2026US 12,649,694 B2Nabors Energy Transition Solutions LLC
- Large diameter silicon carbide single crystals and apparatus and method of manufacture thereof5 May 2026US 12,618,171 B2II-Vi Advanced Materials, LLC
- Nanostructured silicon carbonaceous composite material and methods for producing the same24 Mar 2026US 12,583,754 B2Research Triangle Institute
- Production of high purity silicon and silicon carbide from thermo-chemically treated organic bio-silica and carbon black granules26 Feb 2026US 2026/0054997 A1PQ Corporation
- Refining Process for Producing Solar Silicon, Silicon Carbide, High-Purity Graphite, and Hollow Silica Microspheres15 Jan 2026US 2026/0015244 A1Plassein Technologies Ltd. LLC
- Method for the production of a silicon-graphite composite material8 May 2025US 2025/0149550 A1Talga Technologies Limited
- Nanostructured silicon carbonaceous composite material and methods for producing the same3 Oct 2024US 2024/0327229 A1Research Triangle Institute
- A Porous Silicon-Carbon Anode Electrode Material, a Preparation Method and an Application8 Aug 2024US 2024/0266495 A1Jiangsu Zenergy Battery Technologies Co., Ltd.
Most cited
By later US patents
- System and method for producing solar grade silicon33US 7,572,425 B2General Electric Company · 2009
- Method of manufacturing silicon from powdered material containing silica28US 4,439,410 ASKF Steel Engineering Aktiebolag · 1984
- Method for producing solar cell-grade silicon from rice hulls25US 4,214,920 AExxon Research & Engineering Co. · 1980
- Method for producing solar-cell-grade silicon23US 4,247,528 ADow Corning Corporation · 1981
- Silicon smelting process in direct current furnace16US 5,009,703 ADow Corning Corporation · 1991