F27B 3/19
Arrangements of devices for discharging
F27B3/19 (Arrangements of devices for discharging) appears on 124 US grants and 90 published applications in this corpus.
Search patents in F27B- Granted patents
- 124
- Published applications
- 90
- Assignees
- 91
- Inventors
- 278
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 1 |
| 2002 | 5 | 3 |
| 2003 | 4 | 4 |
| 2004 | 5 | 7 |
| 2005 | 3 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 4 |
| 2008 | 1 | 4 |
| 2009 | 4 | 5 |
| 2010 | 4 | 4 |
| 2011 | 3 | 3 |
| 2012 | 7 | 5 |
| 2013 | 1 | 2 |
| 2014 | 1 | 5 |
| 2015 | 6 | 10 |
| 2016 | 7 | 5 |
| 2017 | 7 | 2 |
| 2018 | 4 | 4 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 3 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 2 | 4 |
| 2026 | 0 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Load lock system and method for manufacturing metal alloys and metal powder30 Dec 2025US 12,510,297 B2Continuum Powders Corporation
- Metal melting apparatus, screen plate for metal melting, and method of melting metal20 May 2025US 12,305,919 B2Tounetsu Co., Ltd.
- Slag door for a melting furnace28 Mar 2023US 11,614,283 B2Danieli & C. Officine Meccaniche SpA
- Melting furnace for metallurgical plant and operating method therefor19 Jul 2022US 11,390,927 B2Danieli & C. Officine Meccaniche SpA
- Melting apparatus for the production of steel24 May 2022US 11,338,362 B2Danieli & C. Officine Meccaniche SpA
- Melting furnace13 Aug 2026US 2026/0235363 A1Kubota Corporation
- Wet hearth melting systems and methods for melting solid metals23 Apr 2026US 2026/0110492 A1The Schaefer Group
- Method For Manufacturing Metal Alloys And Metal Powders26 Mar 2026US 2026/0085886 A1Continuum Powders Corporation
- A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace12 Feb 2026US 2026/0043100 A1
- Method for manufacturing pig iron into an electrical smelting furnace and associated smelting furnace22 Jan 2026US 2026/0022428 A1
Most cited
By later US patents
- Molten metal treatment furnace with level control and method112US 6,503,292 B2Alcoa Inc. · 2003
- Molten metal dosing furnace with metal treatment and level control and method101US 6,500,228 B1Alcoa Inc. · 2002
- Slag control method and apparatus91US 5,505,435 AIndustrial Maintenance and Contract Services · 1996
- Impact resistant scrap submergence device53US 9,481,918 B2Pyrotek, Inc. · 2016
- Direct smelting vessel and direct smelting process43US 6,322,745 B1Technological Resources Pty. Limited · 2001