C03B 5/02
In electric furnaces
Official title: in electric furnaces {, e.g. by dielectric heating (electric heating in general H05B)}
C03B5/02 (In electric furnaces) appears on 510 US grants and 321 published applications in this corpus.
Search patents in C03B- Granted patents
- 510
- Published applications
- 321
- Assignees
- 260
- Inventors
- 1,012
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 12 | 0 |
| 1978 | 4 | 0 |
| 1979 | 9 | 0 |
| 1980 | 12 | 0 |
| 1981 | 4 | 0 |
| 1982 | 8 | 0 |
| 1983 | 8 | 0 |
| 1984 | 10 | 0 |
| 1985 | 12 | 0 |
| 1986 | 13 | 0 |
| 1987 | 10 | 0 |
| 1988 | 12 | 0 |
| 1989 | 13 | 0 |
| 1990 | 13 | 0 |
| 1991 | 10 | 0 |
| 1992 | 13 | 0 |
| 1993 | 16 | 0 |
| 1994 | 19 | 0 |
| 1995 | 7 | 0 |
| 1996 | 16 | 0 |
| 1997 | 15 | 0 |
| 1998 | 20 | 0 |
| 1999 | 10 | 0 |
| 2000 | 18 | 0 |
| 2001 | 9 | 6 |
| 2002 | 11 | 7 |
| 2003 | 15 | 7 |
| 2004 | 10 | 11 |
| 2005 | 8 | 17 |
| 2006 | 11 | 11 |
| 2007 | 6 | 6 |
| 2008 | 5 | 8 |
| 2009 | 3 | 10 |
| 2010 | 5 | 8 |
| 2011 | 2 | 10 |
| 2012 | 4 | 13 |
| 2013 | 12 | 8 |
| 2014 | 10 | 10 |
| 2015 | 5 | 19 |
| 2016 | 7 | 13 |
| 2017 | 9 | 11 |
| 2018 | 10 | 11 |
| 2019 | 8 | 8 |
| 2020 | 9 | 21 |
| 2021 | 8 | 16 |
| 2022 | 9 | 21 |
| 2023 | 9 | 13 |
| 2024 | 12 | 16 |
| 2025 | 11 | 19 |
| 2026 | 5 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Glass, method for producing a glass, and glass melting apparatus16 Jun 2026US 12,655,055 B2Schott AG
- Method for producing glass article and glass-melting furnace5 May 2026US 12,617,706 B2Nippon Electric Glass Co., Ltd.
- Impurity removal method of silicate solid waste and its application31 Mar 2026US 12,589,420 B2Wuhan University of Technology
- Heater and apparatus and method for manufacturing glass product31 Mar 2026US 12,593,376 B2AGC Inc.
- Vertical melting furnace for igneous rock fiber manufacturing17 Mar 2026US 12,577,140 B2Rock Fiber, Inc.
- Electrode support for glass-making furnace24 Sep 2026US 2026/0285734 A1Saint-Gobain Isover
- System for manufacturing high refractive index glass bead and method for manufacturing high refractive index glass bead using same27 Aug 2026US 2026/0250175 A1
- Radioactive waste supply apparatus27 Aug 2026US 2026/0253757 A1Korea Hydro & Nuclear Power Co., Ltd.
- Glass melting process with low co2 emission20 Aug 2026US 2026/0242269 A1Agc Glass Europe
- Method for producing glass article30 Jul 2026US 2026/0217586 A1Nippon Electric Glass Co., Ltd.
Most cited
By later US patents
- Method for rapidly melting and refining glass95US 3,951,635 AOwens-Illinois, Inc. · 1976
- Municipal solid waste disposal process92US 5,280,757 A1994
- Plasma torch furnace processing of spent potliner from aluminum smelters90US 5,222,448 AColumbia Ventures Corporation · 1993
- Methods and apparatus for treating waste88US 6,630,113 B1Integrated Environmental Technologies, LLC · 2003
- Electric furnace for melting glass87US 5,613,994 ASaint-Gobain Vitrage International · 1997