F27B 1/12
Shells or casings
Official title: Shells or casings; Supports therefor
F27B1/12 (Shells or casings) appears on 53 US grants and 58 published applications in this corpus.
Search patents in F27B- Granted patents
- 53
- Published applications
- 58
- Assignees
- 45
- Inventors
- 147
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 4 | 2 |
| 2014 | 0 | 4 |
| 2015 | 2 | 3 |
| 2016 | 2 | 1 |
| 2017 | 5 | 3 |
| 2018 | 1 | 5 |
| 2019 | 7 | 5 |
| 2020 | 4 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 0 | 8 |
| 2024 | 1 | 3 |
| 2025 | 3 | 4 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Metallurgical furnace11 Aug 2026US 12,704,326 B2Metso Metals Oy
- Refractory lining design and separation via destructive hydration7 Apr 2026US 12,595,211 B2HarbisonWalker International, Inc.
- Support assembly in a heat storage device17 Mar 2026US 12,578,144 B2Paul Wurth Deutschland GmbH
- Refractory lining design and steel practice for low refractory waste, and refractory based on reclaimed low-impurity magnesia-carbon aggregate27 Jan 2026US 12,534,410 B2HarbisonWalker International Holdings, Inc.
- High pressure furnace and methods of use26 Aug 2025US 12,398,955 B2The Florida State University Research Foundation, Inc.
- Graphitization furnace comprising widening cross-section8 Oct 2026US 2026/0309421 A1Sgl Carbon SE
- Graphitization furnace27 Aug 2026US 2026/0251394 A1Birla Carbon U.S.A., Inc.
- Shaft furnace for the smelting of copper and method therefor20 Aug 2026US 2026/0242893 A1SMS group GmbH
- Blast furnace lining having improved thermal conductivity and use life2 Jul 2026US 2026/0185170 A1Magneco/Metrel, Inc.
- Method of lining a blast furnace2 Jul 2026US 2026/0185778 A1Magneco/Metrel, Inc.
Most cited
By later US patents
- Anchor system for refractory lining34US 8,383,055 B2Palmer Linings Pty Ltd. · 2013
- Method for manufacturing and repairing molten metal containment vessels16US 5,505,893 AMagneco/Metrel, Inc. · 1996
- Refractory compositions suitable for preparing low water-content injectable pastes13US 4,218,254 ASociete Europeenne des Produits Refractaires · 1980
- High temperature furnace10US 4,637,823 ATexaco Inc. · 1987
- Method of installing a refractory lining10US 5,632,937 AMagneco/Metrel, Inc. · 1997