C03C 2204/04
Opaque glass, glaze or enamel
C03C2204/04 (Opaque glass, glaze or enamel) appears on 84 US grants and 115 published applications in this corpus.
Search patents in C03C- Granted patents
- 84
- Published applications
- 115
- Assignees
- 40
- Inventors
- 237
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 2 | 3 |
| 2013 | 0 | 3 |
| 2014 | 2 | 6 |
| 2015 | 2 | 12 |
| 2016 | 6 | 8 |
| 2017 | 11 | 12 |
| 2018 | 8 | 6 |
| 2019 | 5 | 7 |
| 2020 | 7 | 10 |
| 2021 | 3 | 5 |
| 2022 | 7 | 11 |
| 2023 | 2 | 8 |
| 2024 | 9 | 12 |
| 2025 | 6 | 2 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Opaque quartz glass and method for producing the same6 Oct 2026US 12,753,112 B2Tosoh Sgm Corporation
- Crystallized glass raw material, preparation method therefor and use thereof22 Sep 2026US 12,741,904 B2Chongqing Aureavia Hi-tech Glass Co., Ltd.
- Glass-ceramic compositions, articles, and methods of making the same28 Jul 2026US 12,692,188 B2GüRok Holding B.V.
- Coated glass substrate or glass ceramic substrate with resistant multifunctional surface properties, method for production thereof, and use of thereof19 May 2026US 12,630,472 B2Schott AG
- Pre-sintered ceramic block for dental restoration, preparation method therefor and use thereof5 May 2026US 12,617,711 B2Shenzhen Upcera Dental Technology Co., Ltd.
- Glass-ceramic materials and frit compositions for enamel coatings20 Aug 2026US 2026/0242274 A1Schott AG
- Glass-ceramic articles having reduced surface defects and ion-exchange methods for making same13 Aug 2026US 2026/0234052 A1Corning Incorporated
- Dental porcelain23 Jul 2026US 2026/0207438 A1Kuraray Noritake Dental Inc.
- X-ray opaque glass, glass filler, and resin composition4 Jun 2026US 2026/0152432 A1Nippon Electric Glass Co., Ltd.
- Photosensitive glass material, photosensitive microcrystalline glass and photosensitive microcrystalline glass product23 Oct 2025US 2025/0326682 A1Cdgm Glass Co., Ltd
Most cited
By later US patents
- Quartz glass component for a reactor housing a method of manufacturing same and use thereof41US 6,306,489 B1Heraeus Quarzglas GmbH & Co.KG · 2001
- X-ray opaque, enamel-matching dental filling composition40US 3,971,754 APennwalt Corporation · 1976
- Coated, antimicrobial, chemically strengthened glass and method of making38US 8,753,744 B2Corning Incorporated · 2014
- Extended firing range enamels to produce frost effects24US 8,092,911 B2Ferro Corporation · 2012
- Durable glass enamel composition16US 6,936,556 B2Ferro Corporation · 2005