C03B 5/03
Tank furnaces
C03B5/03 (Tank furnaces) appears on 90 US grants and 67 published applications in this corpus.
Search patents in C03B- Granted patents
- 90
- Published applications
- 67
- Assignees
- 48
- Inventors
- 233
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 2 | 3 |
| 2015 | 1 | 3 |
| 2016 | 0 | 2 |
| 2017 | 1 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 4 |
| 2020 | 3 | 5 |
| 2021 | 1 | 6 |
| 2022 | 4 | 6 |
| 2023 | 2 | 3 |
| 2024 | 5 | 6 |
| 2025 | 0 | 10 |
| 2026 | 2 | 5 |
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 for heating molten glass and glass article3 Dec 2024US 12,157,696 B2Schott AG
- System and method for melting glass or ceramic materials18 Jun 2024US 12,012,350 B2Glassflake Ltd.
- Bus bar design to enable high current input for low resistivity glasses28 May 2024US 11,993,533 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
- Glass melting process with very low to zero-co2 emission30 Apr 2026US 2026/0116803 A1Agc Glass Europe
Most cited
By later US patents
- 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
- Device and method for melting vitrifiable materials79US 7,428,827 B2Saint-Gobain Isover · 2008
- Method for efficiently using flue gas energy in a glass furnace78US 4,882,736 ASorg GmbH & Co. KG · 1989