F27D 3/1572
By suction
Official title: {by suction}
F27D3/1572 (By suction) appears on 16 US grants and 3 published applications in this corpus.
Search patents in F27D- Granted patents
- 16
- Published applications
- 3
- Assignees
- 10
- Inventors
- 33
- Latest grant
- 28 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Slag door for a melting furnace28 Mar 2023US 11,614,283 B2Danieli & C. Officine Meccaniche SpA
- Jet column and jet column reactor dross removing dross diluting pumps18 Apr 2000US 6,051,183 AAlphatech, Inc.
- Monolithic jet column reactor pump26 Jan 1999US 5,863,314 AAlphatech, Inc.
- Method and apparatus for removing a molten slag with a vacuum from a chamber22 Sep 1998US 5,812,586 ALockheed Martin Advanced Environmental Systems, Inc.
- Bubble apparatus for removing and diluting dross in a steel treating bath4 Nov 1997US 5,683,650 A
- Dross Mitigation Method And Device in A MHD Printer16 Feb 2023US 2023/0051340 A1Xerox Corporation
- Slag door for a melting furnace1 Oct 2020US 2020/0309456 A1Danieli & C. Officine Meccaniche SpA
- Scum removal device and scum removal method27 Dec 2018US 2018/0372411 A1Nippon Steel & Sumitomo Metal Corporation
Most cited
By later US patents
- Monolithic jet column reactor pump113US 5,863,314 AAlphatech, Inc. · 1999
- Skim removal16US 4,191,559 AAluminum Company of America · 1980
- Method and apparatus for removing slag8US 3,979,108 AKubota Corporation · 1976
- Metallurgical furnace vacuum slag removal7US 5,305,990 A1994
- Jet column and jet column reactor dross removing dross diluting pumps7US 6,051,183 AAlphatech, Inc. · 2000