F27D 3/10
Charging directly from hoppers or shoots
F27D3/10 (Charging directly from hoppers or shoots) appears on 183 US grants and 126 published applications in this corpus.
Search patents in F27D- Granted patents
- 183
- Published applications
- 126
- Assignees
- 110
- Inventors
- 409
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 4 |
| 2003 | 3 | 3 |
| 2004 | 4 | 6 |
| 2005 | 5 | 5 |
| 2006 | 2 | 4 |
| 2007 | 2 | 3 |
| 2008 | 1 | 9 |
| 2009 | 3 | 9 |
| 2010 | 6 | 4 |
| 2011 | 8 | 13 |
| 2012 | 4 | 16 |
| 2013 | 8 | 3 |
| 2014 | 13 | 5 |
| 2015 | 8 | 3 |
| 2016 | 2 | 6 |
| 2017 | 1 | 4 |
| 2018 | 3 | 5 |
| 2019 | 8 | 5 |
| 2020 | 4 | 0 |
| 2021 | 3 | 7 |
| 2022 | 2 | 4 |
| 2023 | 3 | 2 |
| 2024 | 6 | 3 |
| 2025 | 2 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for operating a blast furnace plant23 Jun 2026US 12,663,212 B2Paul Wurth S. A.
- Metal material supply device2 Dec 2025US 12,487,030 B2Aisin Takaoka Co., Ltd.
- Submerged feedstock charging of melting vessels29 Jul 2025US 12,371,361 B2Owens-Brockway Glass Container Inc.
- Sorting device19 Nov 2024US 12,145,895 B2Taiheiyo Engineering Corporation Taiheiyo Cement Corporation
- Method for charging raw materials into blast furnace24 Sep 2024US 12,098,437 B2Jfe Steel Corporation
- Molten steel manufacturing method and arc furnace20 Aug 2026US 2026/0242884 A1Nippon Steel Corporation
- Submerged feedstock charging of melting vessels6 Nov 2025US 2025/0340474 A1Owens-Brockway Glass Container Inc.
- System and method for distributing loads in a metal furnace2 Jan 2025US 2025/0003683 A1Tecnored Desenvolvimento TecnolóGico S/A
- Method for operating a blast furnace plant7 Mar 2024US 2024/0077255 A1Paul Wurth S. A.
- Method for charging raw materials into blast furnace15 Feb 2024US 2024/0052439 A1Jfe Steel Corporation
Most cited
By later US patents
- Method for top-charging solid waste into a molten metal bath115US 5,491,279 AMolten Metal Technology, Inc. · 1996
- Method and apparatus for top-charging solid waste into a molten metal bath113US 5,571,486 AMolten Metal Technology, Inc. · 1996
- Batch charger for cold top electric furnace48US 6,712,576 B22004
- Pellet-press-to-sintering-boat nuclear fuel pellet loading system26US 4,765,453 AWestinghouse Electric Corp. · 1988
- Furnace charging installation25US 4,514,129 APaul Wurth S. A. · 1985