F27B 9/3005
Arrangements for circulating gases
Official title: {arrangements for circulating gases}
F27B9/3005 (Arrangements for circulating gases) appears on 225 US grants and 148 published applications in this corpus.
Search patents in F27B- Granted patents
- 225
- Published applications
- 148
- Assignees
- 175
- Inventors
- 486
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 2 | 0 |
| 1988 | 12 | 0 |
| 1989 | 10 | 0 |
| 1990 | 11 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 1 |
| 2002 | 2 | 4 |
| 2003 | 4 | 3 |
| 2004 | 2 | 4 |
| 2005 | 4 | 4 |
| 2006 | 2 | 3 |
| 2007 | 3 | 4 |
| 2008 | 3 | 5 |
| 2009 | 3 | 6 |
| 2010 | 0 | 5 |
| 2011 | 6 | 2 |
| 2012 | 5 | 14 |
| 2013 | 4 | 8 |
| 2014 | 3 | 5 |
| 2015 | 7 | 6 |
| 2016 | 5 | 3 |
| 2017 | 6 | 3 |
| 2018 | 2 | 8 |
| 2019 | 4 | 4 |
| 2020 | 5 | 6 |
| 2021 | 3 | 9 |
| 2022 | 2 | 6 |
| 2023 | 10 | 10 |
| 2024 | 5 | 6 |
| 2025 | 4 | 8 |
| 2026 | 8 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat treatment apparatus for manufacturing active material for secondary battery1 Sep 2026US 12,723,812 B2Hanwha Momentum Corporation
- Fan assembly11 Aug 2026US 12,704,129 B2Illinois Tool Works Inc.
- Device for induction heating of at least one workpiece and method for induction heating of at least one workpiece12 May 2026US 12,624,896 B2Sms Elotherm GmbH
- Equipment and method for drying electrode substrate comprising screen for flow volume distribution28 Apr 2026US 12,613,066 B2LG Energy Solution, Ltd.
- Direct flame preheating section for a continuous metal strip processing line31 Mar 2026US 12,590,761 B2Fives Stein
- Electrode heating device17 Sep 2026US 2026/0276305 A1LG Energy Solution, Ltd.
- Apparatus for vertical recycling of waste batteries30 Jul 2026US 2026/0218984 A1Rd Solution Co., Ltd
- Shuttle kiln with enhanced radiant heat retention9 Jul 2026US 2026/0194297 A1Corning Incorporated
- Tunnel kiln for the heat treatment of products, a method for operating such a tunnel kiln and the use of such a tunnel kiln25 Jun 2026US 2026/0177318 A1Riedhammer GmbH
- Apparatus for firing cathode material of secondary battery18 Jun 2026US 2026/0171467 A1Posco Future M Co., Ltd.
Most cited
By later US patents
- Baking furnace and control method therefor53US 5,993,202 AMatsushita Electric Industrial Co., Ltd. · 1999
- Convection oven and method of drying solvents44US 4,140,467 A1979
- Pass-through furnace for heat recovery in the heat treatment of aggregates of metallic articles or parts44US 4,582,301 A1986
- Direct reduction method and rotary hearth furnace41US 5,989,019 AKabushiki Kaisha Kobe Seiko Sho · 1999
- Thermal treating apparatus and process40US 5,997,286 AFord Motor Company · 1999