C03B 5/225
Refining
Official title: Refining (C03B5/18 takes precedence {; Refining agents C03C1/004})
C03B5/225 (Refining) appears on 303 US grants and 296 published applications in this corpus.
Search patents in C03B- Granted patents
- 303
- Published applications
- 296
- Assignees
- 90
- Inventors
- 614
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 8 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 2 |
| 2002 | 7 | 10 |
| 2003 | 8 | 9 |
| 2004 | 5 | 6 |
| 2005 | 4 | 10 |
| 2006 | 9 | 10 |
| 2007 | 2 | 8 |
| 2008 | 4 | 10 |
| 2009 | 11 | 17 |
| 2010 | 6 | 10 |
| 2011 | 6 | 7 |
| 2012 | 8 | 15 |
| 2013 | 8 | 13 |
| 2014 | 13 | 20 |
| 2015 | 11 | 11 |
| 2016 | 8 | 8 |
| 2017 | 17 | 16 |
| 2018 | 5 | 6 |
| 2019 | 7 | 12 |
| 2020 | 11 | 14 |
| 2021 | 6 | 25 |
| 2022 | 10 | 14 |
| 2023 | 17 | 13 |
| 2024 | 11 | 12 |
| 2025 | 11 | 9 |
| 2026 | 6 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Furnace operation method11 Aug 2026US 12,703,652 B2American Air Liquide, Inc.
- Selective chemical fining of small bubbles in glass14 Jul 2026US 12,679,755 B2Owens-Brockway Glass Container Inc.
- Glass, method for producing a glass, and glass melting apparatus16 Jun 2026US 12,655,055 B2Schott AG
- Pressure sensor, glass wafer and production method2 Jun 2026US 12,643,810 B2Schott AG
- Glass and method for producing the same, and member and apparatus using the same17 Mar 2026US 12,577,141 B2Tosoh Corporation
- Clarifying device, method for producing glass article, and tubular member17 Sep 2026US 2026/0274732 A1Nippon Electric Glass Co., Ltd.
- System for manufacturing high refractive index glass bead and method for manufacturing high refractive index glass bead using same27 Aug 2026US 2026/0250175 A1
- Glass melting process with low co2 emission20 Aug 2026US 2026/0242269 A1Agc Glass Europe
- Apparatus for glass manufacturing16 Jul 2026US 2026/0200784 A1Corning Incorporated
- Alkali-free glass7 May 2026US 2026/0125308 A1AGC Inc.
Most cited
By later US patents
- Transparent infrared absorbing glass and method of making291US 4,792,536 APPG Industries, Inc. · 1988
- Fining agents for silicate glasses124US 8,158,543 B2Corning Incorporated · 2012
- Method and device for melting and refining materials capable of being vitrified112US 6,460,376 B1Saint-Gobain Glass France · 2002
- Roof-mounted oxygen-fuel burner for a glass melting furnace and process of using the oxygen-fuel burner106US 6,237,369 B1Owens Corning Fiberglas Technology, Inc. · 2001
- Acoustic bubble removal method98US 4,398,925 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1983