F27D 1/0003
Linings or walls
Official title: {Linings or walls}
F27D1/0003 (Linings or walls) appears on 802 US grants and 543 published applications in this corpus.
Search patents in F27D- Granted patents
- 802
- Published applications
- 543
- Assignees
- 513
- Inventors
- 1,711
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 24 | 0 |
| 1981 | 15 | 0 |
| 1982 | 11 | 0 |
| 1983 | 11 | 0 |
| 1984 | 27 | 0 |
| 1985 | 20 | 0 |
| 1986 | 23 | 0 |
| 1987 | 19 | 0 |
| 1988 | 25 | 0 |
| 1989 | 17 | 0 |
| 1990 | 27 | 0 |
| 1991 | 25 | 0 |
| 1992 | 16 | 0 |
| 1993 | 19 | 0 |
| 1994 | 20 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 8 | 0 |
| 1998 | 14 | 0 |
| 1999 | 17 | 0 |
| 2000 | 23 | 0 |
| 2001 | 9 | 4 |
| 2002 | 22 | 25 |
| 2003 | 22 | 22 |
| 2004 | 14 | 23 |
| 2005 | 13 | 14 |
| 2006 | 12 | 11 |
| 2007 | 7 | 14 |
| 2008 | 4 | 13 |
| 2009 | 5 | 23 |
| 2010 | 9 | 12 |
| 2011 | 9 | 17 |
| 2012 | 12 | 22 |
| 2013 | 10 | 26 |
| 2014 | 18 | 40 |
| 2015 | 18 | 19 |
| 2016 | 21 | 34 |
| 2017 | 28 | 20 |
| 2018 | 19 | 30 |
| 2019 | 26 | 29 |
| 2020 | 25 | 13 |
| 2021 | 12 | 24 |
| 2022 | 11 | 33 |
| 2023 | 19 | 26 |
| 2024 | 17 | 20 |
| 2025 | 11 | 15 |
| 2026 | 17 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F27D 1/0006Linings or walls formed from bricks or layers with a particular composition587
- F27D 1/0033Linings or walls comprising heat shields89
- F27D 1/0023Linings or walls comprising expansion joints or means to restrain expansion due65
- F27D 1/0036Linings or walls comprising means for supporting electric resistances in the furnace44
- F27D 1/004Linings or walls comprising means for securing bricks41
- F27D 1/003Linings or walls comprising porous bricks24
Recent patents
- High-zirconia electro-fused cast refractory material25 Aug 2026US 12,715,817 B2Saint-Gobain TM K.K.
- Electrically decoupled high-temperature thermal insulation30 Jun 2026US 12,669,288 B2Sgl Carbon SE
- Interlocking refractory bricks and refractory layer structures formed therewith23 Jun 2026US 12,662,407 B2HarbisonWalker International Holdings, Inc.
- Structure hanger for refractory16 Jun 2026US 12,656,063 B2Merkle International, Inc.
- Method for producing lithium transition metal complex oxide19 May 2026US 12,633,533 B2Panasonic Intellectual Property Management Co., Ltd.
- Fiber composite felt8 Oct 2026US 2026/0309422 A1Sgl Carbon SE
- Hearth mixture for disposing on the hearth bottom of an electric arc furnace, use of a hearth mixture for disposing on the hearth bottom of an electric arc furnace, electric arc furnace, method for disposing a hearth mixture on the hearth bottom of an electric arc furnace and use of magnesia spinel used in a lining of a cement rotary kiln24 Sep 2026US 2026/0287256 A1Refractory Intellectual Property GmbH & Co.KG
- CaO-ZrO2 Composition, Method for Producing CaO-ZrO2 Composition, and CaO-ZrO2-Containing Refractory Material and Casting Nozzle13 Aug 2026US 2026/0234064 A1Krosakiharima Corporation
- Highly-insulated ingot mold6 Aug 2026US 2026/0225283 A1HarbisonWalker International Holdings, Inc.
- Refractory lining design and separation via destructive hydration16 Jul 2026US 2026/0199944 A1HarbisonWalker International, Inc.
Most cited
By later US patents
- Heat treatment apparatus468US 9,759,489 B2Tokyo Electron Limited · 2017
- Method and apparatus for fabrication of cobalt alloy composite inserts211US 6,063,333 ADennis Tool Company · 2000
- Molten metal treatment furnace with level control and method112US 6,503,292 B2Alcoa Inc. · 2003
- Mobile holding furnace having metering pump111US 4,739,974 AStemcor Corporation · 1988
- Free flowing dry back-up insulating material110US 7,083,758 B2Les Produits Industriels de Haute Temperature Pyrotek Inc. · 2006