C03B 5/0275
Shaft furnaces
Official title: {Shaft furnaces (C03B5/0277 takes precedence)}
C03B5/0275 (Shaft furnaces) appears on 77 US grants and 11 published applications in this corpus.
Search patents in C03B- Granted patents
- 77
- Published applications
- 11
- Assignees
- 40
- Inventors
- 98
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 4 |
| 2003 | 4 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 3 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Melting furnace electrode push assembly with torque limiter18 Mar 2025US 12,252,433 B2Corning Incorporated
- Meltdown device as well as a process for the production of high-UV-transmitting glass type14 Nov 2006US 7,134,299 B2Schott AG
- Method and electric furnace for melting vitreous materials11 Apr 2006US 7,027,481 B2Trend Group S.P.A.
- All-electric glass-melting deep furnace and method of refining and supplying glass3 Jan 2006US 6,983,006 B2
- Method and device for incineration and vitrification of waste, in particular radioactive waste9 Nov 2004US 6,815,572 B1Korea Electric Power Corporation
- Melting furnace electrode push assembly with torque limiter15 Sep 2022US 2022/0289611 A1Corning Incorporated
- Apparatus to convert organic waste into syngas while manufacturing glass products and method thereof23 Aug 2018US 2018/0237322 A1Glass Incorporated
- Process and apparatus for forming man-made viterous fibres1 Oct 2015US 2015/0274578 A1
- Method and electric furnace for melting vitreous materials11 Aug 2005US 2005/0175060 A1Trend Group S.P.A.
- All-electric glass-melting deep furnace and method of refining and supplying glass7 Oct 2004US 2004/0196886 A1
Most cited
By later US patents
- Methods and apparatus for treating waste88US 6,630,113 B1Integrated Environmental Technologies, LLC · 2003
- Glass melting apparatus and method86US 6,314,760 B1Guardian Fiberglass, Inc. · 2001
- ARC plasma-melter electro conversion system for waste treatment and resource recovery83US 5,666,891 ABattelle Memorial Institute · 1997
- Methods and apparatus for low NO.sub.x emissions during the production of electricity from waste treatment systems82US 5,847,353 AIntegrated Environmental Technologies, LLC · 1998
- Glass melting apparatus and method including exhausting the furnace atmosphere by removal of a heating element64US 6,418,755 B2Guardian Fiberglass, Inc. · 2002