C03B 5/12
In shaft furnaces
Official title: in shaft furnaces {(C03B5/02 takes precedence)}
C03B5/12 (In shaft furnaces) appears on 104 US grants and 64 published applications in this corpus.
Search patents in C03B- Granted patents
- 104
- Published applications
- 64
- Assignees
- 48
- Inventors
- 164
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 1 |
| 2004 | 2 | 5 |
| 2005 | 1 | 6 |
| 2006 | 3 | 2 |
| 2007 | 3 | 2 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 4 |
| 2011 | 0 | 1 |
| 2012 | 3 | 0 |
| 2013 | 2 | 2 |
| 2014 | 0 | 1 |
| 2015 | 0 | 3 |
| 2016 | 1 | 6 |
| 2017 | 1 | 2 |
| 2018 | 3 | 5 |
| 2019 | 2 | 3 |
| 2020 | 4 | 2 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 3 |
| 2024 | 1 | 5 |
| 2025 | 1 | 0 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of preparing a melt for the production of man-made mineral fibres12 May 2026US 12,623,943 B2Rockwool A/S
- High temperature and low pressure fining of submerged combustion or other glass4 Nov 2025US 12,459,848 B2Owens-Brockway Glass Container Inc.
- Method and apparatus for supplying pre-heated particulate mineral material for making a mineral melt23 Jan 2024US 11,878,930 B2Rockwool A/S
- Submerged combustion melters and methods20 Jun 2023US 11,680,004 B2
- Method and an apparatus for making a mineral melt15 Jun 2021US 11,034,606 B2Rockwool International A/S
- Method of preparing a melt for the production of man-made mineral fibres11 Jun 2026US 2026/0159430 A1Rockwool A/S
- Process for recycling waste mineral material5 Mar 2026US 2026/0062338 A1Rockwool A/S
- High temperature and low pressure fining of submerged combustion or other glass22 Jan 2026US 2026/0022048 A1Owens-Brockway Glass Container Inc.
- High Temperature and Low Pressure Fining of Submerged Combustion or Other Glass12 Sep 2024US 2024/0300840 A1Owens-Brockway Glass Container Inc.
- Oxy-fuel burner, ignition and flame control system and method for controlling ignition and flame11 Jul 2024US 2024/0230087 A9L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Transparent infrared absorbing glass and method of making291US 4,792,536 APPG Industries, Inc. · 1988
- Methods and apparatus for treating waste88US 6,630,113 B1Integrated Environmental Technologies, LLC · 2003
- Method for preparing raw materials for glass-making86US 6,883,349 B1Saint-Gobain Glass France · 2005
- Molten glass refining apparatus83US 4,110,098 ASaint-Gobain Industries · 1978
- ARC plasma-melter electro conversion system for waste treatment and resource recovery83US 5,666,891 ABattelle Memorial Institute · 1997