C03C 4/0028
Compositions for glass with special properties: for crystal glass
Official title: {for crystal glass, e.g. lead-free crystal glass}
C03C4/0028 (Compositions for glass with special properties: for crystal glass) appears on 28 US grants and 29 published applications in this corpus.
Search patents in C03C- Granted patents
- 28
- Published applications
- 29
- Assignees
- 24
- Inventors
- 101
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 4 |
| 2015 | 1 | 0 |
| 2016 | 3 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 4 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 3 | 4 |
| 2024 | 2 | 0 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lithium silicate glass ceramic comprising copper29 Sep 2026US 12,747,184 B2Ivoclar Vivadent AG
- Crystallized glass of three-dimensional shape, chemically strengthened glass of three-dimensional shape, and method for producing crystallized glass of three-dimensional shape and chemically strengthened glass of three-dimensional shape4 Mar 2025US 12,240,779 B2AGC Inc.
- High index low density glass22 Oct 2024US 12,122,712 B2Corning Incorporated
- Glass ceramic material of a spinel type for the production of fashion jewellery and jewellery stones21 May 2024US 11,987,519 B2Preciosa, a.s.
- Method for treating a lead-containing glass that makes it possible to limit the migration in solution of the lead contained in this glass26 Dec 2023US 11,851,365 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Lead-free crystal composition, glass and glass article made from this composition30 Apr 2026US 2026/0116810 A1Baccarat
- Crystallized glass of three-dimensional shape, chemically strengthened glass of three-dimensional shape, and method for producing crystallized glass of three-dimensional shape and chemically strengthened glass of three-dimensional shape5 Jun 2025US 2025/0178950 A1AGC Inc.
- Glass-ceramic and crystalline articles and methods of making same5 Jun 2025US 2025/0178951 A1Corning Incorporated
- Crystallized glass9 Nov 2023US 2023/0357070 A1Nippon Electric Glass Co., Ltd.
- Glass for chemical strengthening, chemically strengthened glass, and electronic device case10 Aug 2023US 2023/0250015 A1AGC Inc.
Most cited
By later US patents
- Lead-free fine crystal glassware42US 5,270,269 ACorning Incorporated · 1993
- Lead- and barium-free crystal glass39US 6,391,810 B1F. X. Nachtmann Bleikristallwerke GmbH · 2002
- Glass-ceramic(s); associated formable and/or color-tunable, crystallizable glass(es); and associated process(es)21US 9,403,716 B2Corning Incorporated · 2016
- Vitrifiable mixture for quality glasses20US 6,235,667 B1CALP-Cristalleria Artistica La Piana S.p.A. · 2001
- Crystallized glass housing17US 9,321,672 B2Asahi Glass Company, Limited · 2016