F27D 25/00
Devices or methods for removing incrustations
Official title: Devices {or methods} for removing incrustations {, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag}
F27D25/00 (Devices or methods for removing incrustations) appears on 202 US grants and 123 published applications in this corpus.
Search patents in F27D- Granted patents
- 202
- Published applications
- 123
- Assignees
- 184
- Inventors
- 506
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 3 |
| 2002 | 4 | 3 |
| 2003 | 10 | 3 |
| 2004 | 8 | 8 |
| 2005 | 2 | 7 |
| 2006 | 5 | 2 |
| 2007 | 3 | 5 |
| 2008 | 6 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 4 |
| 2012 | 1 | 4 |
| 2013 | 2 | 4 |
| 2014 | 4 | 6 |
| 2015 | 3 | 7 |
| 2016 | 1 | 3 |
| 2017 | 5 | 5 |
| 2018 | 4 | 3 |
| 2019 | 3 | 2 |
| 2020 | 1 | 6 |
| 2021 | 2 | 6 |
| 2022 | 4 | 7 |
| 2023 | 7 | 12 |
| 2024 | 4 | 9 |
| 2025 | 5 | 8 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Calcination unit for decarbonating raw materials7 Jul 2026US 12,674,621 B2Fives Fcb
- Glass batch inlet and cleaning device26 May 2026US 12,637,378 B2Owens-Brockway Glass Container Inc.
- System, method, and apparatus for improved cleaning of industrial furnaces19 May 2026US 12,631,398 B2Integrated Global Services, Inc.
- Refractory lining design and separation via destructive hydration7 Apr 2026US 12,595,211 B2HarbisonWalker International, Inc.
- Heat treatment system17 Feb 2026US 12,553,666 B2NGK Insulators, Ltd.
- Repair apparatus and repair method13 Aug 2026US 2026/0233233 A1Jfe Steel Corporation
- Stirring device16 Jul 2026US 2026/0202133 A1
- Material grinding end effector assembly, subassemblies thereof, and methods for utilizing the same18 Jun 2026US 2026/0166634 A1Edw. C. Levy Co.
- Method of forming positive electrode active material, kiln, and heating furnace13 Nov 2025US 2025/0347466 A1Semiconductor Energy Laboratory Co.Ltd.
- Submerged feedstock charging of melting vessels6 Nov 2025US 2025/0340474 A1Owens-Brockway Glass Container Inc.
Most cited
By later US patents
- Apparatus for automatically cleaning smelt spouts of a chemical recovery furnace92US 5,542,650 AAnthony-Ross Company · 1996
- Slug for industrial ballistic tool44US 7,159,519 B2Olin Corporation · 2007
- Method for operating moving hearth reducing furnace37US 6,251,161 B1Kabushiki Kaisha Kobe Sieko Sho (Kobe Steel, Ltd.) · 2001
- Apparatus for deslagging a cyclone furnace33US 5,307,743 AHalliburton Company · 1994
- Method for deslagging a cyclone furnace30US 5,196,648 AJet Research Center, Inc. · 1993