F27D 1/1678
Increasing the durability of linings
Official title: {Increasing the durability of linings; Means for protecting}
F27D1/1678 (Increasing the durability of linings) appears on 44 US grants and 42 published applications in this corpus.
Search patents in F27D- Granted patents
- 44
- Published applications
- 42
- Assignees
- 48
- Inventors
- 158
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 4 |
| 2004 | 0 | 2 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 2 | 7 |
| 2014 | 0 | 3 |
| 2015 | 3 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 3 | 2 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 2 | 2 |
| 2022 | 1 | 4 |
| 2023 | 0 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Construction method of fiber lining surface of ethylene cracking furnace27 Jan 2026US 12,535,272 B2Luyang Energy-Saving Materials Co., Ltd.
- Method for protecting an inner wall of a shaft furnace25 Feb 2025US 12,235,047 B2Paul Wurth S. A.
- Installation method of refractory fiber integral module3 Sep 2024US 12,078,421 B2Luyang Energy-Saving Materials Co., Ltd.
- Vessel for containing direct reduced iron2 Jan 2024US 11,859,907 B2Danieli & C. Officine Meccaniche SpA
- Process for the positioning of a corrosion-resistant coating on a wall of an item of equipment of a FCC unit8 Mar 2022US 11,266,967 B2Total Raffinage Chimie
- Melting hearth, cold hearth melting system, and process for producing high temperature metal alloys19 Jun 2025US 2025/0197967 A1Continuum Powders Corporation
- Thermally insulative compositions for a ceramic coating25 Jul 2024US 2024/0246866 A1Nanotech Inc.
- Construction method of fiber lining surface of ethylene cracking furnace3 Aug 2023US 2023/0243587 A1Luyang Energy-Saving Materials Co., Ltd.
- Transpirational first wall cooling5 Jan 2023US 2023/0005627 A1
- Installation method of refractory fiber integral module29 Dec 2022US 2022/0412655 A1Luyang Energy-Saving Materials Co., Ltd.
Most cited
By later US patents
- Glazing layer-forming composition for hot-coating of furnace refractories and method of forming glazing layer84US 6,096,432 AAsahi Chemical Co., Ltd. · 2000
- Highly endurable heat insulating material, method for production thereof, uses thereof, and working method therefor25US 6,897,169 B2Nippon Steel Corporation · 2005
- Method and apparatus for making precision metal castings23US 4,632,170 A1986
- Method for protecting the refractory lining in the gas space of a metallurgical reaction vessel23US 5,407,461 ATechnological Resources Pty. Limited · 1995
- Method to protect the surface of metal in vertical melting furnaces20US 4,828,609 ALiquid Air Corporation · 1989