C01B 32/97
Preparation from sio or sio2
Official title: Preparation from SiO or SiO2
C01B32/97 (Preparation from sio or sio2) appears on 146 US grants and 101 published applications in this corpus.
Search patents in C01B- Granted patents
- 146
- Published applications
- 101
- Assignees
- 113
- Inventors
- 359
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 0 |
| 2003 | 2 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 4 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 1 |
| 2010 | 1 | 2 |
| 2011 | 2 | 5 |
| 2012 | 0 | 5 |
| 2013 | 2 | 6 |
| 2014 | 0 | 15 |
| 2015 | 5 | 4 |
| 2016 | 6 | 2 |
| 2017 | 8 | 4 |
| 2018 | 3 | 5 |
| 2019 | 3 | 2 |
| 2020 | 1 | 2 |
| 2021 | 5 | 9 |
| 2022 | 3 | 5 |
| 2023 | 4 | 5 |
| 2024 | 1 | 8 |
| 2025 | 4 | 10 |
| 2026 | 5 | 1 |
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
- Silicon carbon composite, negative electrode active material, negative electrode composition, negative electrode, and lithium secondary battery2 Jun 2026US 12,643,793 B2LG Energy Solution, Ltd.
- Silicon carbon composite, negative electrode active material, negative electrode composition, negative electrode, and lithium secondary battery2 Jun 2026US 12,643,794 B2LG Energy Solution, Ltd.
- Silicon carbide-containing material, precursor composition and preparation processes thereof5 May 2026US 12,617,688 B2The Yellow SiC Holding GmbH
- Method, apparatus, and system for producing silicon-containing product by utilizing silicon mud byproduct of cutting silicon material with diamond wire17 Feb 2026US 12,552,675 B2
- 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
- Kiln with rotary tube reactor for hydrogen treatment and associated methods25 Dec 2025US 2025/0388757 A1
- Methods for separating an input feedstock using thermal plasma and systems thereof11 Dec 2025US 2025/0375646 A1Refacture, Inc.
- Method and apparatus for producing sic12 Jun 2025US 2025/0187929 A1Industriekeramik Hochrhein GmbH
- Silicon Carbide Powder, and Production Method Thereof22 May 2025US 2025/0162882 A1Tokuyama Corporation
Most cited
By later US patents
- Carbide nanomaterials684US 6,190,634 B1President and Fellows of Harvard College · 2001
- Mechanical sorting system for crude silicon carbide97US 4,728,043 ANorton Company · 1988
- Plasma production of ultra-fine ceramic carbides83US 5,486,675 AIdaho Research Foundation, Inc. · 1996
- Plasma production of ultra-fine ceramic carbides81US 5,369,241 AIdaho Research Foundation, Inc. · 1994
- Preparation of SiC whiskers59US 4,284,612 AGreat Lakes Carbon Corporation · 1981