C03C 3/06
With more than 90% silica by weight
Official title: with more than 90% silica by weight, e.g. quartz {(C03C3/045 takes precedence)}
C03C3/06 (With more than 90% silica by weight) appears on 816 US grants and 853 published applications in this corpus.
Search patents in C03C- Granted patents
- 816
- Published applications
- 853
- Assignees
- 274
- Inventors
- 1,672
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 9 | 0 |
| 1990 | 3 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 12 | 0 |
| 1995 | 4 | 0 |
| 1996 | 10 | 0 |
| 1997 | 21 | 0 |
| 1998 | 10 | 0 |
| 1999 | 19 | 0 |
| 2000 | 17 | 0 |
| 2001 | 24 | 14 |
| 2002 | 41 | 43 |
| 2003 | 30 | 60 |
| 2004 | 39 | 32 |
| 2005 | 19 | 35 |
| 2006 | 21 | 33 |
| 2007 | 16 | 29 |
| 2008 | 13 | 33 |
| 2009 | 23 | 29 |
| 2010 | 13 | 34 |
| 2011 | 30 | 31 |
| 2012 | 25 | 26 |
| 2013 | 24 | 18 |
| 2014 | 15 | 12 |
| 2015 | 9 | 29 |
| 2016 | 23 | 35 |
| 2017 | 29 | 42 |
| 2018 | 29 | 39 |
| 2019 | 28 | 50 |
| 2020 | 33 | 40 |
| 2021 | 25 | 39 |
| 2022 | 23 | 35 |
| 2023 | 23 | 21 |
| 2024 | 39 | 45 |
| 2025 | 23 | 33 |
| 2026 | 12 | 16 |
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
- Titania-silica glass with uniform hydroxyl concentration11 Aug 2026US 12,703,655 B2Corning Incorporated
- Glass substrate for high-frequency device and circuit board for high-frequency device11 Aug 2026US 12,703,657 B2AGC Inc.
- Test method for quality evaluation and coated container21 Jul 2026US 12,686,530 B2Schot AG
- Molded body made of opaque quartz glass and method for producing same14 Jul 2026US 12,679,756 B2Heraeus Quarzglas GmbH & Co.KG
- Titania-silica glass with uniform hydroxyl concentration8 Oct 2026US 2026/0308039 A1Corning Incorporated
- Glass-based substrate and methods of making the same10 Sep 2026US 2026/0265122 A1Corning Incorporated
- Enamel paste, method of forming an enamel coating, enamel coated substrate and use thereof27 Aug 2026US 2026/0250182 A1Fenzi AGT Netherlands B.V.
- Glass fiber,glass fiber woven fabric, and glass fiber-reinforced resin composition23 Jul 2026US 2026/0209111 A1Nitto Boseki Co., Ltd.
- Aerogel attachment technology25 Jun 2026US 2026/0175554 A1Cardinal CG Company
Most cited
By later US patents
- Sequencing of the recipe steps for the optimal low-k HDP-CVD processing882US 5,937,323 AAPPLIED Materials.Inc. · 1999
- Sequencing of the recipe steps for the optimal low-dielectric constant HDP-CVD Processing817US 6,217,658 B1APPLIED Materials.Inc. · 2001
- UV light-permeable glass and article comprising the same256US 5,474,589 ASumitomo Electric Industries, Ltd. · 1995
- Molecular receptors in metal oxide sol-gel materials prepared via molecular imprinting232US 6,057,377 ASandia Corporation · 2000
- Rare earth doped and large effective area optical fibers for fiber lasers and amplifiers222US 8,213,758 B2Imra America, Inc. · 2012