C01B 13/20
By oxidation of elements in the gaseous state
Official title: by oxidation of elements in the gaseous state; by oxidation or hydrolysis of compounds in the gaseous state
C01B13/20 (By oxidation of elements in the gaseous state) appears on 133 US grants and 86 published applications in this corpus.
Search patents in C01B- Granted patents
- 133
- Published applications
- 86
- Assignees
- 100
- Inventors
- 325
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 2 |
| 2002 | 5 | 8 |
| 2003 | 4 | 14 |
| 2004 | 4 | 6 |
| 2005 | 6 | 9 |
| 2006 | 4 | 6 |
| 2007 | 5 | 8 |
| 2008 | 5 | 6 |
| 2009 | 6 | 4 |
| 2010 | 3 | 3 |
| 2011 | 4 | 1 |
| 2012 | 0 | 3 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 2 | 2 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 3 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 3 |
| 2022 | 0 | 0 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Continuous process for sustainable production of hydrogen19 Aug 2025US 12,391,547 B2University of Surrey
- Raw material composition for preparing oxygen carrier particles, oxygen carrier particles prepared by using same, and method for preparing oxygen carrier particles5 Dec 2023US 11,835,227 B2Korea Electric Power Corporation
- Equipment for producing nuclear fuel powder14 Nov 2023US 11,817,224 B2Framatome
- Method for recycling carbon dioxide12 Oct 2021US 11,142,461 B2SK Innovation Co., Ltd.
- Method of producing hydrogen gas from water4 May 2021US 10,994,994 B2
- Rotating liquid film reactor with gas-liquid concurrent and use thereof in preparation of metal hydroxides27 Nov 2025US 2025/0360482 A1Beijing University of Chemical Technology
- Atomizer and atomizing method24 Jul 2025US 2025/0235568 A1Nalux Co., Ltd.
- Process for producing at least one pyrogenic compound and burner suitable for use in said process31 Oct 2024US 2024/0359995 A1Evonik Operations GmbH
- Equipment for producing nuclear fuel powder16 Dec 2021US 2021/0391093 A1Framatome
- Method for producing hydrogen fluoride from an aqueous solution of hexafluorosilicic acid28 Oct 2021US 2021/0331920 A1New Chemical Products LLC
Most cited
By later US patents
- Method of making nanostructured materials142US 5,460,701 ANanophase Technologies Corporation · 1995
- Very high purity fine powders and methods to produce such powders142US 6,569,397 B12003
- Microwave plasma chemical synthesis of ultrafine powders120US 6,409,851 B1Materials Modifciation, Inc. · 2002
- Electrically assisted synthesis of particles and film with precisely controlled characteristic119US 6,254,940 B1University of Cincinnati · 2001
- High purity fine metal powders and methods to produce such powder117US 6,786,950 B2NanoProducts Corporation · 2004