C03B 5/027
By passing an electric current between electrodes immersed in the glass bath
Official title: by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
C03B5/027 (By passing an electric current between electrodes immersed in the glass bath) appears on 271 US grants and 160 published applications in this corpus.
Search patents in C03B- Granted patents
- 271
- Published applications
- 160
- Assignees
- 120
- Inventors
- 503
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 10 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 9 | 0 |
| 1987 | 9 | 0 |
| 1988 | 9 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 11 | 0 |
| 2001 | 5 | 3 |
| 2002 | 4 | 4 |
| 2003 | 5 | 1 |
| 2004 | 3 | 3 |
| 2005 | 0 | 4 |
| 2006 | 6 | 5 |
| 2007 | 1 | 5 |
| 2008 | 3 | 4 |
| 2009 | 1 | 3 |
| 2010 | 2 | 3 |
| 2011 | 0 | 4 |
| 2012 | 2 | 5 |
| 2013 | 5 | 0 |
| 2014 | 5 | 9 |
| 2015 | 3 | 7 |
| 2016 | 3 | 5 |
| 2017 | 3 | 4 |
| 2018 | 3 | 5 |
| 2019 | 3 | 5 |
| 2020 | 5 | 16 |
| 2021 | 5 | 9 |
| 2022 | 6 | 13 |
| 2023 | 5 | 6 |
| 2024 | 10 | 9 |
| 2025 | 3 | 16 |
| 2026 | 2 | 12 |
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.
- Method of producing melt, method of producing glass article, melting apparatus, and equipment for producing glass article5 Aug 2025US 12,378,147 B2AGC Inc.
- Electromagnetic heating for vitrification10 Jun 2025US 12,327,647 B2InEnTec Inc.
- Melting furnace electrode push assembly with torque limiter18 Mar 2025US 12,252,433 B2Corning Incorporated
- Electrode support for glass-making furnace24 Sep 2026US 2026/0285734 A1Saint-Gobain Isover
- 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.
- Electric apparatus for a glass-making furnace9 Jul 2026US 2026/0193121 A1
- High-generation tft-lcd glass substrate preparation process9 Jul 2026US 2026/0193123 A1Bengbu China Optoelectronic Technology Co., Ltd
Most cited
By later US patents
- Method for rapidly melting and refining glass95US 3,951,635 AOwens-Illinois, Inc. · 1976
- 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
- Glass melting apparatus and method86US 6,314,760 B1Guardian Fiberglass, Inc. · 2001
- Multi-stage process and apparatus for refining glass or the like85US 4,798,616 APPG Industries, Inc. · 1989