F27D 7/06
Forming or maintaining special atmospheres or vacuum within heating chambers
Official title: Forming or maintaining special atmospheres or vacuum within heating chambers (supplying steam, vapour, gases or liquids F27D7/02)
F27D7/06 (Forming or maintaining special atmospheres or vacuum within heating chambers) appears on 313 US grants and 371 published applications in this corpus.
Search patents in F27D- Granted patents
- 313
- Published applications
- 371
- Assignees
- 288
- Inventors
- 969
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 6 |
| 2003 | 7 | 4 |
| 2004 | 7 | 6 |
| 2005 | 1 | 9 |
| 2006 | 6 | 1 |
| 2007 | 2 | 6 |
| 2008 | 2 | 3 |
| 2009 | 1 | 9 |
| 2010 | 0 | 9 |
| 2011 | 5 | 7 |
| 2012 | 3 | 6 |
| 2013 | 7 | 16 |
| 2014 | 7 | 32 |
| 2015 | 10 | 35 |
| 2016 | 9 | 27 |
| 2017 | 25 | 27 |
| 2018 | 18 | 25 |
| 2019 | 23 | 17 |
| 2020 | 17 | 26 |
| 2021 | 15 | 15 |
| 2022 | 17 | 17 |
| 2023 | 19 | 25 |
| 2024 | 13 | 20 |
| 2025 | 13 | 15 |
| 2026 | 10 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Semiconductor high pressure annealing device25 Aug 2026US 12,721,088 B2Tokyo Electron Limited
- Internal data acquisition device for vacuum furnace11 Aug 2026US 12,704,417 B2Fluke Corporation
- Volume heat treatment method and related system4 Aug 2026US 12,698,541 B2Laser Engineering Applications
- High pressure heat treatment apparatus4 Aug 2026US 12,698,939 B2HPSP Co., Ltd.
- Non-water cooled consumable electrode vacuum arc furnace for continuous process14 Jul 2026US 12,680,758 B2
- Ovens for equipment such as die attach systems, flip chip bonding systems, clip attach systems, and related methods6 Aug 2026US 2026/0225171 A1Kulicke and Soffa Industries, Inc.
- Substrate processing apparatus and gas pressure control method used therein25 Jun 2026US 2026/0182292 A1HPSP Co., Ltd.
- Apparatus and method for production of high purity copper-based alloys21 May 2026US 2026/0139346 A1Doggone Investment Co. LLC
- Furnace tube and using method thereof14 May 2026US 2026/0132987 A1Swaysure Technology Co., Ltd.
- Rotation seal-cooling structure, heating device, and rotation seal-cooling method2 Apr 2026US 2026/0092648 A1Tsukishima Kikai Co., Ltd.
Most cited
By later US patents
- Method for providing a magnetic recording transducer148US 8,381,391 B2Western Digital (Fremont), LLC · 2013
- Recycling carbon fibre81US 7,922,871 B2Recycled Carbon Fibre Limited · 2011
- Ceramic article with reduced surface defect density and process for producing a ceramic article47US 9,034,199 B2APPLIED Materials.Inc. · 2015
- Low-gas temperature stabilization system44US 5,447,431 ABrooks Automation, Inc. · 1995
- Active hold-down for heat treating31US 4,721,462 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1988