C03B 5/00
Melting in furnaces
Official title: Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
C03B5/00 (Melting in furnaces) appears on 1,996 US grants and 1,590 published applications in this corpus.
Search patents in C03B- Granted patents
- 1,996
- Published applications
- 1,590
- Assignees
- 646
- Inventors
- 3,322
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 38 | 0 |
| 1977 | 36 | 0 |
| 1978 | 20 | 0 |
| 1979 | 15 | 0 |
| 1980 | 32 | 0 |
| 1981 | 13 | 0 |
| 1982 | 44 | 0 |
| 1983 | 29 | 0 |
| 1984 | 26 | 0 |
| 1985 | 45 | 0 |
| 1986 | 29 | 0 |
| 1987 | 34 | 0 |
| 1988 | 31 | 0 |
| 1989 | 44 | 0 |
| 1990 | 36 | 0 |
| 1991 | 33 | 0 |
| 1992 | 32 | 0 |
| 1993 | 33 | 0 |
| 1994 | 35 | 0 |
| 1995 | 26 | 0 |
| 1996 | 44 | 0 |
| 1997 | 45 | 0 |
| 1998 | 68 | 0 |
| 1999 | 46 | 0 |
| 2000 | 49 | 0 |
| 2001 | 52 | 12 |
| 2002 | 38 | 42 |
| 2003 | 36 | 31 |
| 2004 | 26 | 43 |
| 2005 | 20 | 48 |
| 2006 | 32 | 35 |
| 2007 | 20 | 37 |
| 2008 | 18 | 45 |
| 2009 | 21 | 62 |
| 2010 | 23 | 75 |
| 2011 | 19 | 63 |
| 2012 | 38 | 69 |
| 2013 | 51 | 74 |
| 2014 | 59 | 61 |
| 2015 | 55 | 84 |
| 2016 | 54 | 70 |
| 2017 | 69 | 73 |
| 2018 | 57 | 73 |
| 2019 | 63 | 76 |
| 2020 | 68 | 76 |
| 2021 | 46 | 92 |
| 2022 | 49 | 78 |
| 2023 | 65 | 72 |
| 2024 | 47 | 64 |
| 2025 | 47 | 66 |
| 2026 | 40 | 69 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C03B 5/16Special features of the melting process1,614
- C03B 5/02In electric furnaces510
- C03B 5/005Melting in furnaces: of glass-forming waste materials306
- C03B 5/04In tank furnaces147
- C03B 5/12In shaft furnaces104
- C03B 5/06In pot furnaces76
- C03B 5/14In revolving cylindrical furnaces43
- C03B 5/10In combined tank furnaces and pots0
Recent patents
- Method of manufacturing a set of mass-produced glass containers, raw material composition, and set of resulting mass-produced glass containers6 Oct 2026US 12,753,104 B2
- Plasma-resistant glass and manufacturing method thereof29 Sep 2026US 12,747,185 B2Iones Co., Ltd.
- Process for thermoprocessing a charge15 Sep 2026US 12,735,340 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and system for heat recovery in an oxy-fuel fired glass furnace15 Sep 2026US 12,735,341 B2Air Products and Chemicals, Inc.
- Glass for radiation and/or particle detectors8 Sep 2026US 12,729,151 B2Schott AG
- Cementitious reagents, methods of manufacturing and uses thereof1 Oct 2026US 2026/0296966 A1Terra Co2 Technology Holdings, Inc.
- Electrode support for glass-making furnace24 Sep 2026US 2026/0285734 A1Saint-Gobain Isover
- Method and System for Heat Recovery in an Oxy-Fuel Fired Glass Furnace24 Sep 2026US 2026/0285735 A1Air Products and Chemicals, Inc.
- Method for determining a batch blanket top surface level at a cold top electric glass furnace24 Sep 2026US 2026/0285736 A1Glass Service Company, Inc.
- Method and apparatus for inputting thermal energy into a fluid, related apparatus and uses24 Sep 2026US 2026/0287253 A1Coolbrook Oy
Most cited
By later US patents
- Transparent infrared absorbing glass and method of making291US 4,792,536 APPG Industries, Inc. · 1988
- Reactor and method for disassociating waste190US 5,301,620 AMolten Metal Technology, Inc. · 1994
- Method and system for reducing NO.sub.x and fuel emissions in a furnace149US 5,759,022 AGas Research Institute · 1998
- Highly transparent, edge colored glass140US 5,030,594 APPG Industries, Inc. · 1991
- Oxygen-gas fuel burner and glass forehearth containing the oxygen-gas fuel burner130US 5,814,121 AThe BOC Group, Inc. · 1998