C03C 4/20
Compositions for glass with special properties: for chemical resistant glass
Official title: for chemical resistant glass
C03C4/20 (Compositions for glass with special properties: for chemical resistant glass) appears on 185 US grants and 248 published applications in this corpus.
Search patents in C03C- Granted patents
- 185
- Published applications
- 248
- Assignees
- 76
- Inventors
- 425
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 6 |
| 2009 | 3 | 4 |
| 2010 | 4 | 6 |
| 2011 | 5 | 5 |
| 2012 | 3 | 3 |
| 2013 | 3 | 25 |
| 2014 | 2 | 13 |
| 2015 | 10 | 10 |
| 2016 | 9 | 13 |
| 2017 | 23 | 16 |
| 2018 | 11 | 22 |
| 2019 | 17 | 22 |
| 2020 | 15 | 20 |
| 2021 | 10 | 9 |
| 2022 | 10 | 14 |
| 2023 | 15 | 21 |
| 2024 | 2 | 13 |
| 2025 | 12 | 7 |
| 2026 | 10 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Plasma-resistant glass and manufacturing method thereof29 Sep 2026US 12,747,185 B2Iones Co., Ltd.
- Glass-ceramics with plasma resistance and parts for dry etching comprising the same18 Aug 2026US 12,709,567 B2Hass Co., Ltd.
- High alumina low soda glass compositions19 May 2026US 12,630,460 B2Vitro Flat Glass LLC
- Container made from soda-lime glass with improved chemical resistance for a pharmaceutical or diagnostic substance12 May 2026US 12,622,845 B2Sgd S.A.
- Glass composition, glass article and use thereof12 May 2026US 12,623,953 B2Schott AG
- Glass for pharmaceutical container and glass tube for pharmaceutical container13 Aug 2026US 2026/0234049 A1Nippon Electric Glass Co., Ltd.
- Process for producing an mas glass with high etch homogenieity16 Jul 2026US 2026/0200789 A1Qsil GmbH Quarzschmelze Ilmenau
- Glass tube and pharmaceutical container25 Jun 2026US 2026/0176188 A1Nippon Electric Glass Co., Ltd.
- Plasma-resistant glass, inner chamber component for semiconductor manufacturing process and methods for manufacturing glass and component23 Apr 2026US 2026/0109639 A1Hansol IONES Co., Ltd.
- Glass for medicine container, and glass tube for medicine container and medicine container using same9 Apr 2026US 2026/0097985 A1Nippon Electric Glass Co., Ltd.
Most cited
By later US patents
- Novel glass compositions101US 4,065,317 ANippon Electric Glass Co., Ltd. · 1977
- Alkaline earth alumino-silicate glass compositions with improved chemical and mechanical durability79US 9,145,329 B2Corning Incorporated · 2015
- Glass compositions with improved chemical and mechanical durability74US 8,551,898 B2Corning Incorporated · 2013
- Borosilicate glass with high chemical resistance and use thereof62US 6,794,323 B2Schott Glas · 2004
- Artificial intraocular lens58US 3,996,627 AAmerican Optical Corporation · 1976