C03B 5/16
Special features of the melting process
Official title: Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
C03B5/16 (Special features of the melting process) appears on 1,614 US grants and 1,377 published applications in this corpus.
Search patents in C03B- Granted patents
- 1,614
- Published applications
- 1,377
- Assignees
- 464
- Inventors
- 2,697
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 31 | 0 |
| 1977 | 30 | 0 |
| 1978 | 17 | 0 |
| 1979 | 10 | 0 |
| 1980 | 22 | 0 |
| 1981 | 10 | 0 |
| 1982 | 38 | 0 |
| 1983 | 23 | 0 |
| 1984 | 21 | 0 |
| 1985 | 37 | 0 |
| 1986 | 19 | 0 |
| 1987 | 26 | 0 |
| 1988 | 27 | 0 |
| 1989 | 31 | 0 |
| 1990 | 28 | 0 |
| 1991 | 23 | 0 |
| 1992 | 20 | 0 |
| 1993 | 23 | 0 |
| 1994 | 21 | 0 |
| 1995 | 14 | 0 |
| 1996 | 29 | 0 |
| 1997 | 33 | 0 |
| 1998 | 51 | 0 |
| 1999 | 33 | 0 |
| 2000 | 39 | 0 |
| 2001 | 47 | 7 |
| 2002 | 24 | 37 |
| 2003 | 27 | 25 |
| 2004 | 24 | 40 |
| 2005 | 15 | 39 |
| 2006 | 28 | 27 |
| 2007 | 17 | 32 |
| 2008 | 16 | 41 |
| 2009 | 18 | 57 |
| 2010 | 21 | 65 |
| 2011 | 16 | 55 |
| 2012 | 34 | 62 |
| 2013 | 44 | 63 |
| 2014 | 51 | 56 |
| 2015 | 49 | 76 |
| 2016 | 47 | 61 |
| 2017 | 67 | 71 |
| 2018 | 49 | 67 |
| 2019 | 58 | 66 |
| 2020 | 63 | 70 |
| 2021 | 37 | 73 |
| 2022 | 44 | 65 |
| 2023 | 53 | 58 |
| 2024 | 34 | 55 |
| 2025 | 40 | 57 |
| 2026 | 35 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C03B 5/235Heating the glass712
- C03B 5/18Stirring devices346
- C03B 5/42Details of construction of furnace walls346
- C03B 5/225Refining303
- C03B 5/26Outlets188
- C03B 5/167Means for preventing damage to equipment182
- C03B 5/20Bridges, shoes, throats, or other devices for withholding dirt, foam, or batch153
- C03B 5/24Automatically regulating the melting process105
Recent patents
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- Method and system for heat recovery in an oxy-fuel fired glass furnace15 Sep 2026US 12,735,341 B2Air Products and Chemicals, Inc.
- High-zirconia electro-fused cast refractory material25 Aug 2026US 12,715,817 B2Saint-Gobain TM K.K.
- Glass manufacturing apparatus comprising a delivery conduit system with a low impedance drain assembly18 Aug 2026US 12,709,564 B2Corning Incorporated
- 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
- Clarifying device, method for producing glass article, and tubular member17 Sep 2026US 2026/0274732 A1Nippon Electric Glass Co., Ltd.
- Methods of recycling cullet and fibreglass17 Sep 2026US 2026/0274733 A1Sibelco Nederland N.V.
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