C10B 21/22
By introducing the heating gas and air at various levels
Official title: by introducing the heating gas and air at various levels
C10B21/22 (By introducing the heating gas and air at various levels) appears on 13 US grants and 5 published applications in this corpus.
Search patents in C10B- Granted patents
- 13
- Published applications
- 5
- Assignees
- 10
- Inventors
- 23
- Latest grant
- 13 Jul 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 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 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Process and reactor for continuous charcoal production13 Jul 2021US 11,060,034 B2Vallourec Tubos Do Brasil S. A.
- Sleeve-type coal material decomposition apparatus5 Jun 2018US 9,988,577 B2Xixia Dragon Into Special Material Co., Ltd.
- Air proportioning system for secondary air in coke ovens depending on the vault vs. sole temperature ratio17 Mar 2015US 8,980,063 B2Uhde GmbH
- Coke oven featuring improved heating properties11 Jun 2013US 8,460,516 B2Uhde GmbH
- Heating system for regenerative coke ovens9 Nov 1993US 5,259,932 ADidier Ofu Engineering GmbH
- Process and reactor for continuous charcoal production17 Sep 2020US 2020/0291300 A1Vallourec Tubos Do Brasil S. A.
- Sleeving cylinder-type coal matter pyrolysis device26 Mar 2015US 2015/0083573 A1Xixia Dragon Into Special Material Co., Ltd.
- Utilization of a coke oven featuring improved heating properties26 Sep 2013US 2013/0248347 A1Uhde GmbH
- Air proportioning system for secondary air in coke ovens depending on the vault vs. sole temperature ratio18 Aug 2011US 2011/0198206 A1Uhde GmbH
- Coke oven featuring improved heating properties18 Mar 2010US 2010/0065412 A1Uhde GmbH
Most cited
By later US patents
- Low differential coke oven heating system98US 4,249,997 ABethlehem Steel Corporation · 1981
- Air proportioning system for secondary air in coke ovens depending on the vault vs. sole temperature ratio71US 8,980,063 B2Uhde GmbH · 2015
- Coke oven battery having twin heating flues6US 3,996,109 ADr. C. Otto & Comp. G.m.b.H. · 1976
- Method of reducing nox-content in flue gas during heating of coking oven3US 5,017,270 AKrupp-Koppers GmbH · 1991
- Rich-gas burner arrangement in heating flues for coke oven chambers2US 4,113,570 ADr. C. Otto & Comp. G.m.b.H. · 1978