C03C 1/04
Opacifiers
Official title: Opacifiers, e.g. fluorides or phosphates; Pigments
C03C1/04 (Opacifiers) appears on 67 US grants and 56 published applications in this corpus.
Search patents in C03C- Granted patents
- 67
- Published applications
- 56
- Assignees
- 45
- Inventors
- 229
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 2 |
| 2004 | 2 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 4 |
| 2007 | 1 | 3 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 4 |
| 2017 | 1 | 2 |
| 2018 | 0 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 6 |
| 2021 | 2 | 7 |
| 2022 | 5 | 9 |
| 2023 | 6 | 1 |
| 2024 | 4 | 5 |
| 2025 | 4 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Molded body made of opaque quartz glass and method for producing same14 Jul 2026US 12,679,756 B2Heraeus Quarzglas GmbH & Co.KG
- Fluorescent glass ceramic with high transparency and preparation method and use thereof17 Mar 2026US 12,577,147 B2Aidite (Qinhuangdao) Technology Co., Ltd.
- Spinel glass-ceramic, method for the production thereof and shaped dental product containing the spinel glass-ceramic9 Dec 2025US 12,492,141 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Gold containing silicate glass28 Oct 2025US 12,454,479 B2Corning Incorporated
- Method for manufacturing coloured glass-ceramic slab articles from a base mix, glass frit for manufacturing the base mix and coloured glass-ceramic slab article so obtained10 Jun 2025US 12,325,658 B2
- Decorative enamel for automotive glasses and associated methods2 Jul 2026US 2026/0184624 A1Corning Incorporated
- Gray Glass Having Low Light Transmission9 Jan 2025US 2025/0011222 A1Vitro Flat Glass LLC
- Masking compositions for milled lithium-silicate glass-ceramic dental restorations and method for making same2 Jan 2025US 2025/0000748 A1Jensen Industries Inc.
- Dental Material With Pigment19 Sep 2024US 2024/0308900 A1
- Fluorescent glass ceramic with high transparency and preparation method and use thereof20 Jun 2024US 2024/0199471 A1Aidite (Qinhuangdao) Technology Co., Ltd.
Most cited
By later US patents
- Multiply coated metallic luster pigments136US 5,624,486 ABASF SE · 1997
- Spherical pigments, process for producing them and use thereof43US 6,074,754 ADegussa AG · 2000
- Compositions comprising inorganic particles39US 4,701,218 AJohnson Matthey Public Limited Company · 1987
- Colored interference pigments32US 6,719,838 B2Merck Patent GmbH · 2004
- Alkaline earth-manganese oxide pigments28US 6,416,868 B1dmc2 Degussa Metals Catalysts Cerdec AG · 2002