F27B 3/18
Arrangements of devices for charging
F27B3/18 (Arrangements of devices for charging) appears on 278 US grants and 206 published applications in this corpus.
Search patents in F27B- Granted patents
- 278
- Published applications
- 206
- Assignees
- 162
- Inventors
- 561
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 8 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 15 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 4 |
| 2002 | 10 | 8 |
| 2003 | 8 | 8 |
| 2004 | 9 | 10 |
| 2005 | 6 | 3 |
| 2006 | 2 | 4 |
| 2007 | 3 | 8 |
| 2008 | 2 | 10 |
| 2009 | 7 | 8 |
| 2010 | 12 | 4 |
| 2011 | 3 | 7 |
| 2012 | 4 | 14 |
| 2013 | 5 | 6 |
| 2014 | 5 | 10 |
| 2015 | 14 | 14 |
| 2016 | 10 | 13 |
| 2017 | 10 | 7 |
| 2018 | 9 | 11 |
| 2019 | 8 | 6 |
| 2020 | 9 | 10 |
| 2021 | 9 | 8 |
| 2022 | 6 | 4 |
| 2023 | 6 | 9 |
| 2024 | 6 | 7 |
| 2025 | 4 | 4 |
| 2026 | 2 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vortex metal insertion furnace control system23 Jun 2026US 12,663,214 B2Gpre IP, LLC
- Method of producing molten iron using electric furnace including video device3 Mar 2026US 12,566,029 B2Jfe Steel Corporation
- Load lock system and method for manufacturing metal alloys and metal powder30 Dec 2025US 12,510,297 B2Continuum Powders Corporation
- Process and plant for preheating a metal charge fed in continuous to an electric melting furnace15 Jul 2025US 12,359,873 B2
- Aluminum alloy material smelting device20 May 2025US 12,305,920 B2CITIC Dicastal Co., Ltd.
- Molten steel manufacturing method and arc furnace20 Aug 2026US 2026/0242884 A1Nippon Steel Corporation
- Method and apparatus for co-injecting carbon-based particulate and oxygen-based gas streams into a liquid bath25 Jun 2026US 2026/0176709 A1
- 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
- Melting Furnace and Method for Melting a Metal Material12 Mar 2026US 2026/0071819 A1Bayerische Motoren Werke Aktiengesellschaft
Most cited
By later US patents
- Metal scrap submergence system128US 6,217,823 B1Metaullics Systems Co., L.P. · 2001
- Aluminum scrap melting process and apparatus123US 6,074,455 AMetaullics Systems Co., L.P. · 2000
- Use of high carbon coal ash72US 6,755,905 B2Lafarge Canada Inc. · 2004
- Method and apparatus for melting of glass batch materials70US 5,979,191 AOwens Corning Fiberglas Technology, Inc. · 1999
- Scrap submergence system54US 9,476,644 B2Pyrotek, Inc. · 2016