C03B 5/0336
Shaft furnaces
Official title: {Shaft furnaces (C03B5/0338 takes precedence)}
C03B5/0336 (Shaft furnaces) appears on 22 US grants and 17 published applications in this corpus.
Search patents in C03B- Granted patents
- 22
- Published applications
- 17
- Assignees
- 17
- Inventors
- 78
- Latest grant
- 23 Apr 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and apparatus for additive manufacturing of glass23 Apr 2019US 10,266,442 B2Massachusetts Institute of Technology
- Methods and apparatus for additive manufacturing of glass20 Feb 2018US 9,896,368 B2Massachusetts Institute of Technology
- Vertical crucible pulling method for producing a glass body having a high silicic-acid component17 Oct 2017US 9,790,116 B2Heraeus Quarzglas GmbH & Co.KG
- Method and apparatus for drawing a quartz glass strand26 Jan 2016US 9,242,887 B2Heraeus Quarzglas GmbH & Co.KG
- Method and apparatus for producing a quartz glass cylinder24 Dec 2013US 8,613,207 B2Heraeus Quarzglas GmbH & Co.KG
- Glass rod, set of glass rods, and process for the production of a glass rod29 Feb 2024US 2024/0067559 A1Schott AG
- Preparation of quartz glass bodies from silicon dioxide powder23 May 2019US 2019/0152827 A1Heraeus Quarzglas GmbH & Co.KG
- Methods and apparatus for additive manufacturing of glass31 May 2018US 2018/0148364 A1Massachusetts Institute of Technology
- 3d printer printhead, 3d printer using same, method for manufacturing molded product by using 3d printer, method for manufacturing artificial tooth by using 3d printer, and method for manufacturing machinable glass ceramic molded product by using 3d printer11 Jan 2018US 2018/0009696 A1Korea Institute of Ceramic Engineering and Technology
- Methods and apparatus for additive manufacturing of glass23 Mar 2017US 2017/0081236 A1Massachusetts Institute of Technology
Most cited
By later US patents
- Glass melting method and apparatus22US 4,983,198 AHoya Corporation · 1991
- Method for the continuous production of a tube or rod of vitreous fused silica20US 4,923,497 AHeraeus Quarschmelze GmbH · 1990
- Method for producing a composite glass body with drawing of concentric melts20US 5,364,432 AHeraeus Quarzglas GmbH & Co.KG · 1994
- Joule melter for the processing of radioactive wastes17US 4,627,069 AAtomic Energy of Canada Limited · 1986
- Method of inclusion melting glass with radioactive components, and furnace for carrying out such method16US 4,139,360 ASorg GmbH & Co. KG · 1979