C03B 27/04
Tempering or quenching glass products: using gas
Official title: using gas
C03B27/04 (Tempering or quenching glass products: using gas) appears on 509 US grants and 328 published applications in this corpus.
Search patents in C03B- Granted patents
- 509
- Published applications
- 328
- Assignees
- 134
- Inventors
- 746
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 10 | 0 |
| 1978 | 17 | 0 |
| 1979 | 10 | 0 |
| 1980 | 24 | 0 |
| 1981 | 14 | 0 |
| 1982 | 10 | 0 |
| 1983 | 9 | 0 |
| 1984 | 7 | 0 |
| 1985 | 12 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 12 | 0 |
| 1989 | 15 | 0 |
| 1990 | 15 | 0 |
| 1991 | 17 | 0 |
| 1992 | 14 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 18 | 0 |
| 2000 | 10 | 0 |
| 2001 | 7 | 1 |
| 2002 | 10 | 8 |
| 2003 | 9 | 13 |
| 2004 | 10 | 9 |
| 2005 | 4 | 9 |
| 2006 | 5 | 16 |
| 2007 | 7 | 5 |
| 2008 | 7 | 10 |
| 2009 | 2 | 7 |
| 2010 | 4 | 12 |
| 2011 | 6 | 18 |
| 2012 | 9 | 9 |
| 2013 | 7 | 12 |
| 2014 | 15 | 13 |
| 2015 | 6 | 19 |
| 2016 | 7 | 25 |
| 2017 | 22 | 17 |
| 2018 | 12 | 6 |
| 2019 | 8 | 18 |
| 2020 | 7 | 20 |
| 2021 | 12 | 19 |
| 2022 | 6 | 18 |
| 2023 | 14 | 19 |
| 2024 | 11 | 9 |
| 2025 | 15 | 10 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C03B 27/044For flat or bent glass sheets being in a horizontal position319
- C03B 27/0404Nozzles, blow heads, blowing units or their arrangements, specially adapted for flat166
- C03B 27/0413Stresses130
- C03B 27/0417Controlling or regulating for flat or bent glass sheets103
- C03B 27/052For flat or bent glass sheets being in a vertical position73
- C03B 27/06For glass products other than flat or bent glass plates37
- C03B 27/0422For flat or bent glass sheets starting in an horizontal position and29
Recent patents
- Tempering furnace and method for assembling tempering furnace22 Sep 2026US 12,741,896 B2Glaston Finland Oy
- Method for bending and tempering of curved glass using flexible shafts16 Jun 2026US 12,655,054 B2Luoyang Landglass Technology Co., Ltd
- Glasses with improved tempering capabilities2 Jun 2026US 12,643,814 B2Corning Incorporated
- Self-correcting edge quality in a glass tempering system7 Apr 2026US 12,596,358 B2Cardinal IG Company
- Method and apparatus for shaping a glass sheet24 Feb 2026US 12,559,406 B2Pilkington Group Limited
- Tempered glass bottle with sandwich structure10 Sep 2026US 2026/0264921 A1Vetropack Holding AG
- Tempered glass bottle with thin wall thickness10 Sep 2026US 2026/0265112 A1Vetropack Holding AG
- Glass, glass forming method, and glass forming device13 Aug 2026US 2026/0234045 A1Fuyao Glass Industry Group Co., Ltd.
- Edge de-coated glass and forming method therefor6 Aug 2026US 2026/0225947 A1Fuyao Glass Industry Group Co., Ltd.
- Self-correcting vertical flatness in a glass tempering system2 Jul 2026US 2026/0186476 A1Cardinal IG Company
Most cited
By later US patents
- Ion exchanged, fast cooled glasses108US 8,232,218 B2Corning Incorporated · 2012
- Apparatus for tempering and bending glass104US 5,938,810 ADonnelly Corporation · 1999
- Method of separating strengthened glass96US 8,347,651 B2Corning Incorporated · 2013
- Glass structure strengthening by etching74US 4,911,743 AHughes Aircraft Company · 1990
- Composite magnetic recording medium74US 8,316,668 B1WD Media, LLC · 2012