C03B 20/00
Processes specially adapted for the production of quartz or fused silica articles
Official title: Processes specially adapted for the production of quartz or fused silica articles {, not otherwise provided for (C03B19/01, C03B19/066, C03B19/106, C03B19/12, C03B19/14, C03B37/00 take precedence)}
C03B20/00 (Processes specially adapted for the production of quartz or fused silica articles) appears on 154 US grants and 157 published applications in this corpus.
Search patents in C03B- Granted patents
- 154
- Published applications
- 157
- Assignees
- 74
- Inventors
- 399
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 5 |
| 2003 | 3 | 3 |
| 2004 | 1 | 5 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 4 |
| 2008 | 1 | 5 |
| 2009 | 2 | 5 |
| 2010 | 2 | 7 |
| 2011 | 3 | 2 |
| 2012 | 6 | 2 |
| 2013 | 5 | 14 |
| 2014 | 4 | 9 |
| 2015 | 8 | 9 |
| 2016 | 5 | 2 |
| 2017 | 6 | 6 |
| 2018 | 2 | 7 |
| 2019 | 6 | 21 |
| 2020 | 8 | 12 |
| 2021 | 4 | 8 |
| 2022 | 11 | 10 |
| 2023 | 4 | 4 |
| 2024 | 9 | 4 |
| 2025 | 6 | 7 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fabricating method for quartz vial30 Sep 2025US 12,428,196 B2Nexus Company Inc.
- Quartz container manufacturing method and forming apparatus19 Aug 2025US 12,391,596 B2Longi Green Energy Technology Co., Ltd.
- Infrared transmissivity measurement method of quartz glass crucible19 Aug 2025US 12,392,050 B2Sumco Corporation
- Quartz glass crucible and manufacturing method thereof29 Jul 2025US 12,371,812 B2Sumco Corporation
- Quartz glass crucible18 Mar 2025US 12,252,804 B2Sumco Corporation
- Silica glass compression molding apparatus and method10 Sep 2026US 2026/0265111 A1Advanced Semiconductor Manufacturing Innovation Center, Wuxi Xishan District
- Quartz glass crucible capable of measuring infrared transmittance13 Nov 2025US 2025/0347027 A1Sumco Corporation
- Aspherical prism and preparation method thereof23 Oct 2025US 2025/0326673 A1AAC Optics (Chongqing) Co., Ltd.
- Sinter-free low-temperature 3d-printing of nanoscale optical grade fused silica glass9 Oct 2025US 2025/0313502 A1The Regents of the University of California
- Manufacturing method of quartz glass crucible9 Oct 2025US 2025/0313985 A1Sumco Corporation
Most cited
By later US patents
- Method for producing ultra-high purity, optical quality, glass articles47US 4,789,389 ACorning Glass Works · 1988
- Preparation of fused silica glass by hydrolysis of methyl silicate32US 4,979,973 AShin-Etsu Chemical Co., Ltd. · 1990
- Crucible for semiconductor manufacturing purposes and a process for manufacturing the crucible31US 4,528,163 AHeraeus Quarzschmelze GmbH · 1985
- Method of producing doped quartz glass30US 4,336,048 AU. S. Philips Corporation · 1982
- High-purity, opaque quartz glass, method for producing same and use thereof30US 5,585,173 ANippon Silica Glass Co., Ltd. · 1996