C21C 2100/06
Energy from waste gas used in other processes
C21C2100/06 (Energy from waste gas used in other processes) appears on 38 US grants and 50 published applications in this corpus.
Search patents in C21C- Granted patents
- 38
- Published applications
- 50
- Assignees
- 35
- Inventors
- 121
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 6 |
| 2010 | 0 | 9 |
| 2011 | 3 | 6 |
| 2012 | 5 | 11 |
| 2013 | 5 | 6 |
| 2014 | 4 | 2 |
| 2015 | 6 | 2 |
| 2016 | 2 | 1 |
| 2017 | 3 | 0 |
| 2018 | 2 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 3 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process and plant for preheating a metal charge fed in continuous to an electric melting furnace15 Jul 2025US 12,359,873 B2
- System and method to sustainable integrated wastewater treatment and air-cooling in a steelmaking plant14 Jan 2025US 12,195,361 B2Saudi Arabian Oil Company
- Process and plant for preheating a metal charge fed in continuous to an electric melting furnace14 Jan 2025US 12,195,815 B2
- Process and plant for preheating a metal charge fed in continuous to an electric melting furnace18 Jul 2023US 11,702,713 B2
- Combined system for producing steel and method for operating the combined system31 Mar 2020US 10,604,816 B2thyssenkrupp AG
- Systematic carbon emissions reduction method for whole process of production and casting3 Sep 2026US 2026/0258513 A1Jiqing Low Carbon Technology (Qinhuangdao) Co., Ltd.
- Half pipe heat exchange system for electric arc, metallurgical or refining furnaces and system thereof10 Jul 2025US 2025/0224179 A1Amerifab, Inc.
- System and method to sustainable integrated wastewater treatment and air-cooling in a steelmaking plant22 Aug 2024US 2024/0279079 A1Saudi Arabian Oil Company
- Process and plant for preheating a metal charge fed in continuous to an electric melting furnace21 Sep 2023US 2023/0295756 A1Tenova S. P. A.
- Improved process and plant for preheating a metal charge fed in continuous to an electric melting furnace2 Feb 2023US 2023/0032262 A1
Most cited
By later US patents
- Blast furnace iron production with integrated power generation70US 8,133,298 B2Air Products and Chemicals, Inc. · 2012
- Pre-treatment process for feed material for direct reduction process7US 7,175,690 B2Rio Tinto Brasil · 2007
- Process and plant for producing hot metal4US 8,926,728 B2Outotec Oyj · 2015
- Method and a system for converting carbon dioxide into chemical starting materials4US 9,285,116 B2Siemens Aktiengesellschaft · 2016
- System for recovering waste heat4US 9,574,829 B2Skc Co., Ltd. · 2017