F27D 3/14
Charging or discharging liquid or molten material
F27D3/14 (Charging or discharging liquid or molten material) appears on 390 US grants and 282 published applications in this corpus.
Search patents in F27D- Granted patents
- 390
- Published applications
- 282
- Assignees
- 236
- Inventors
- 718
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 10 | 0 |
| 1987 | 9 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 7 | 0 |
| 1992 | 1 | 0 |
| 1993 | 6 | 0 |
| 1994 | 10 | 0 |
| 1995 | 10 | 0 |
| 1996 | 10 | 0 |
| 1997 | 14 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 18 | 0 |
| 2001 | 7 | 4 |
| 2002 | 9 | 7 |
| 2003 | 9 | 10 |
| 2004 | 3 | 6 |
| 2005 | 5 | 2 |
| 2006 | 2 | 11 |
| 2007 | 5 | 12 |
| 2008 | 6 | 10 |
| 2009 | 6 | 2 |
| 2010 | 3 | 3 |
| 2011 | 2 | 17 |
| 2012 | 6 | 5 |
| 2013 | 6 | 13 |
| 2014 | 7 | 17 |
| 2015 | 16 | 17 |
| 2016 | 18 | 32 |
| 2017 | 17 | 16 |
| 2018 | 19 | 15 |
| 2019 | 22 | 10 |
| 2020 | 9 | 18 |
| 2021 | 9 | 3 |
| 2022 | 10 | 15 |
| 2023 | 7 | 6 |
| 2024 | 13 | 15 |
| 2025 | 8 | 9 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- CaO—ZrO2 composition, method for producing CaO—ZrO2 composition, and CaO—ZrO2-containing refractory material and casting nozzle5 May 2026US 12,617,728 B2Krosakiharima Corporation
- Coupling and rotor shaft for molten metal devices24 Feb 2026US 12,560,169 B2Molten Metal Equipment Innovations, LLC
- Half-crucible dry hearth melter25 Nov 2025US 12,480,711 B1
- Coupling and rotor shaft for molten metal devices9 Sep 2025US 12,410,800 B2Molten Metal Equipment Innovations, LLC
- Pump system for transferring molten metal24 Jun 2025US 12,339,065 B2
- CaO-ZrO2 Composition, Method for Producing CaO-ZrO2 Composition, and CaO-ZrO2-Containing Refractory Material and Casting Nozzle13 Aug 2026US 2026/0234064 A1Krosakiharima Corporation
- Dual volute, reversible pump for pumping molten metal21 May 2026US 2026/0139905 A1
- Wet hearth melting systems and methods for melting solid metals23 Apr 2026US 2026/0110492 A1The Schaefer Group
- 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
- Melt pumping apparatus and casting apparatus133US 5,454,423 AGeneral Motors Corporation · 1995
- Gas dispersion apparatus for molten aluminum refining128US 5,364,078 APraxair Technology, Inc. · 1994
- Metal scrap submergence system128US 6,217,823 B1Metaullics Systems Co., L.P. · 2001
- Molten metal charge well123US 6,036,745 AMetaullics Systems Co., L.P. · 2000
- Aluminum scrap melting process and apparatus123US 6,074,455 AMetaullics Systems Co., L.P. · 2000