F27D 3/1518
Tapholes
Official title: {Tapholes}
F27D3/1518 (Tapholes) appears on 72 US grants and 63 published applications in this corpus.
Search patents in F27D- Granted patents
- 72
- Published applications
- 63
- Assignees
- 60
- Inventors
- 190
- Latest grant
- 5 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 4 | 5 |
| 2003 | 3 | 2 |
| 2004 | 3 | 3 |
| 2005 | 1 | 2 |
| 2006 | 0 | 2 |
| 2007 | 1 | 7 |
| 2008 | 0 | 5 |
| 2009 | 4 | 3 |
| 2010 | 5 | 3 |
| 2011 | 3 | 5 |
| 2012 | 2 | 0 |
| 2013 | 3 | 1 |
| 2014 | 3 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 5 |
| 2017 | 4 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 3 |
| 2022 | 4 | 2 |
| 2023 | 3 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Densification method and apparatus5 Nov 2024US 12,135,168 B2HarbisonWalker International Holdings, Inc.
- Device for maintaining a tap hole of an electric arc furnace26 Dec 2023US 11,852,414 B2Badische Stahl-Engineering GmbH
- Cyclonic plasma melting furnace5 Dec 2023US 11,835,230 B2Korea Institute of Fusion Energy
- Steelmaking taphole slag retardant device5 Sep 2023US 11,747,086 B2Jdss Ltd.
- Electric furnace18 Oct 2022US 11,473,841 B2Nippon Steel Corporation
- Shaft furnace for the smelting of copper and method therefor20 Aug 2026US 2026/0242893 A1SMS group GmbH
- Flash smelting furnace, flash smelting furnace operation method, and metal smelting method13 Aug 2026US 2026/0234750 A1JX Advanced Metals Corporation
- Refractory plate, method for the production of the refractory plate, use of the refractory plate, slide gate valve for controlling a flow of molten metal and vessel for containing molten metal13 Nov 2025US 2025/0345847 A1Refractory Intellectual Property GmbH & Co.KG
- Densification method and apparatus26 Jan 2023US 2023/0024399 A1HarbisonWalker International Holdings, Inc.
- Steelmaking taphole slag retardant device3 Nov 2022US 2022/0349653 A1Jdss Ltd.
Most cited
By later US patents
- Method for producing hydrocarbon gas from waste126US 5,395,405 AMolten Metal Technology, Inc. · 1995
- Method and apparatus for injection of a liquid waste into a molten bath124US 5,436,210 AMolten Metal Technology, Inc. · 1995
- Feed processing employing dispersed molten droplets114US 5,744,117 AMolten Metal Technology, Inc. · 1998
- Method and system for injection of a vaporizable material into a molten bath112US 5,679,132 AMolten Metal Technology, Inc. · 1997
- Method for injecting feed streams into a molten bath112US 5,858,059 AMolten Metal Technology, Inc. · 1999