F27D 2001/1875
Hanging doors and walls
Official title: {Hanging doors and walls}
F27D2001/1875 (Hanging doors and walls) appears on 14 US grants and 7 published applications in this corpus.
Search patents in F27D- Granted patents
- 14
- Published applications
- 7
- Assignees
- 11
- Inventors
- 21
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 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 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Closure for concrete products curing kiln21 Apr 2026US 12,607,407 B2Besser Company
- Furnace and method for treating material10 Sep 2024US 12,084,792 B2Onejoon GmbH
- Slag discharge door device for an electric furnace30 May 2017US 9,664,444 B2Hyundai Steel Company
- Automatic charge hearth access door assembly12 Jan 2016US 9,234,703 B2Honda Motor Co., Ltd.
- Slag discharge door apparatus for electric furnace2 Apr 2013US 8,409,494 B2Hyundai Steel Company
- Closure for concrete products curing kiln3 Aug 2023US 2023/0243589 A1Besser Company
- Slag door arrangement and cleaning method4 May 2023US 2023/0133535 A1Badische Stahl-Engineering GmbH
- Furnace and method for treating material22 Jul 2021US 2021/0222331 A1Onejoon GmbH
- Automatic charge hearth access door assembly18 Jun 2015US 2015/0168070 A1Honda Motor Co., Ltd.
- Slag discharge door device for an electric furnace26 Sep 2013US 2013/0250996 A1Hyundai Steel Company
Most cited
By later US patents
- Slag discharge door apparatus for electric furnace18US 8,409,494 B2Hyundai Steel Company · 2013
- Electrical contact coating for silicon pressure transducers17US 4,581,676 AGeneral Signal Corporation · 1986
- Heat retaining curtains for reheat furnace discharge openings and charging openings7US 5,310,338 ASSE International Corporation · 1994
- Curtain door for metal reheating furnace6US 4,867,677 ABethlehem Steel Corporation · 1989
- High temperature rotating vacuum kiln and method for heat treating solid particulate material under a vacuum4US 6,380,517 B2Cabot Corporation · 2002