F27D 3/1563
By the use of scrapers
Official title: {by the use of scrapers}
F27D3/1563 (By the use of scrapers) appears on 23 US grants and 14 published applications in this corpus.
Search patents in F27D- Granted patents
- 23
- Published applications
- 14
- Assignees
- 18
- Inventors
- 55
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 0 | 0 |
| 2020 | 2 | 2 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Furnace, fluid feed component, fluid reforming system and method of reforming a fluid15 Jul 2025US 12,359,872 B2Burnstar Technologies (Pty) Ltd
- Method and installation for removing slag from metallurgical melts12 Mar 2024US 11,926,879 B2RIA Cast House Enginering GmbH
- Slag door for a melting furnace28 Mar 2023US 11,614,283 B2Danieli & C. Officine Meccaniche SpA
- Melting work device and melting work method18 Oct 2022US 11,473,842 B2Sintokogio, Ltd.
- Melting pot, and float salvaging apparatus and method for melting pot5 May 2020US 10,639,710 B2Jiangxi Nerin Equipment Co., Ltd.
- Furnace, fluid feed component, fluid reforming system and method of reforming a fluid9 Oct 2025US 2025/0314427 A1Burnstar Technologies (Pty) Ltd
- Slag door arrangement and cleaning method4 May 2023US 2023/0133535 A1Badische Stahl-Engineering GmbH
- Furnace, fluid feed component, fluid reforming system and method of reforming a fluid17 Nov 2022US 2022/0364791 A1Burnstar Technologies (Pty) Ltd
- Method and installation for removing slag from metallurgical melts28 Apr 2022US 2022/0127688 A1RIA Cast House Engineering GmbH
- Melting work device and melting work method24 Dec 2020US 2020/0400376 A1Sintokogio, Ltd.
Most cited
By later US patents
- Boom and lance for removing slag from crucible6US 5,360,204 AKeibler-Thompson Corp. · 1994
- Apparatus for maneuvering a conditioning tool within a furnace5US 4,239,442 ASyracuse Supply Company · 1980
- Device for removing material from the free surface of a body of liquid using unequal length linkages5US 5,051,180 ASheppard Ingot Castings Machines Limited · 1991
- Robotic device for molten metal processing4US 5,536,295 AGarfield Alloys, Inc. · 1996
- Molten metal holding furnace and method of holding molten metal within the same3US 5,567,378 ANippondenso Co., Ltd. · 1996