C21C 2100/02
Treatment of the exhaust gas
C21C2100/02 (Treatment of the exhaust gas) appears on 22 US grants and 46 published applications in this corpus.
Search patents in C21C- Granted patents
- 22
- Published applications
- 46
- Assignees
- 27
- Inventors
- 104
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2009 | 0 | 5 |
| 2010 | 0 | 1 |
| 2011 | 1 | 4 |
| 2012 | 1 | 5 |
| 2013 | 2 | 3 |
| 2014 | 2 | 5 |
| 2015 | 2 | 4 |
| 2016 | 3 | 2 |
| 2017 | 1 | 2 |
| 2018 | 3 | 2 |
| 2019 | 2 | 0 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 6 |
| 2025 | 1 | 4 |
| 2026 | 2 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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- Metallurgical plant and method28 Aug 2025US 2025/0271216 A1Danieli & C. Officine Meccaniche SpA
- Process for reducing fossil co2 emissions17 Jul 2025US 2025/0229224 A1Paul Wurth S. A.
- Systems and methods for self-reduction of iron ore12 Jun 2025US 2025/0188554 A1Charm Industrial, Inc.
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Most cited
By later US patents
- Methods for treating an offgas containing carbon oxides10US 9,475,699 B2Seerstone LLC · 2016
- Method and apparatus for coproduction of pig iron and high quality syngas8US 8,764,875 B22014
- Method and a system for converting carbon dioxide into chemical starting materials4US 9,285,116 B2Siemens Aktiengesellschaft · 2016
- Methods for treating an offgas containing carbon oxides1US 10,106,416 B2Seerstone LLC · 2018
- Process and device for treating furnace gas1US 10,518,216 B2Danieli Corus B.V. · 2019