F27D 2019/0081
Controlling an air-lock chamber
Official title: {Controlling an air-lock chamber}
F27D2019/0081 (Controlling an air-lock chamber) appears on 7 US grants and 4 published applications in this corpus.
Search patents in F27D- Granted patents
- 7
- Published applications
- 4
- Assignees
- 8
- Inventors
- 15
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 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 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 2 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Sealing system for a machine for thermal treatment of bulk material8 Apr 2025US 12,270,607 B2Metso USA Inc.
- Sealing system for a machine for thermal treatment of bulk material25 Jul 2023US 11,709,019 B2Metso Minerals Industries, Inc.
- Sintering furnace for components consisting of a sintering material, in particular for dental components, and a method for sintering such components16 Oct 2018US 10,101,088 B2Sirona Dental Systems GmbH
- Sintering furnace for components consisting of a sintering material, in particular for dental components, and a method for sintering such components1 May 2018US 9,958,207 B2Sirona Dental Systems GmbH
- Sealing system for a machine for thermal treatment of bulk material19 Oct 2023US 2023/0332834 A1Metso Outotec USA Inc.
- Sealing a reduction assembly18 Aug 2022US 2022/0259685 A1Primetals Technologies Austria GmbH
- Sealing system for a machine for thermal treatment of bulk material2 Dec 2021US 2021/0372702 A1Metso Minerals Industries, Inc.
- Sintering furnace for components consisting of a sintering material, in particular for dental components, and a method for sintering such components3 Sep 2015US 2015/0247672 A1Sirona Dental Systems GmbH
Most cited
By later US patents
- Furnace of decreasing oxygen concentration to ultra low amount18US 5,044,944 AYamato Works Co., Ltd. · 1991
- Apparatus for sensing empty hoppers10US 4,445,628 AKoppers Company, Inc. · 1984
- Sintering furnace for components consisting of a sintering material, in particular for dental components, and a method for sintering such components2US 10,101,088 B2Sirona Dental Systems GmbH · 2018
- Sealing system for a machine for thermal treatment of bulk material2US 11,709,019 B2Metso Minerals Industries, Inc. · 2023