F27D 7/04
Circulating atmospheres by mechanical means
F27D7/04 (Circulating atmospheres by mechanical means) appears on 200 US grants and 140 published applications in this corpus.
Search patents in F27D- Granted patents
- 200
- Published applications
- 140
- Assignees
- 150
- Inventors
- 416
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 10 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 2 |
| 2002 | 4 | 2 |
| 2003 | 6 | 3 |
| 2004 | 1 | 4 |
| 2005 | 2 | 1 |
| 2006 | 1 | 3 |
| 2007 | 2 | 5 |
| 2008 | 6 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 4 |
| 2011 | 0 | 3 |
| 2012 | 1 | 4 |
| 2013 | 1 | 4 |
| 2014 | 2 | 5 |
| 2015 | 4 | 12 |
| 2016 | 5 | 13 |
| 2017 | 13 | 7 |
| 2018 | 4 | 6 |
| 2019 | 12 | 4 |
| 2020 | 6 | 14 |
| 2021 | 5 | 5 |
| 2022 | 3 | 8 |
| 2023 | 8 | 8 |
| 2024 | 7 | 1 |
| 2025 | 4 | 9 |
| 2026 | 5 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for providing a rotating shaft into a high pressure, high temperature furnace1 Sep 2026US 12,723,814 B2The Florida State University Research Foundation, Inc.
- Method for providing a rotating shaft into a high pressure, high temperature furnace1 Sep 2026US 12,723,815 B2The Florida State University Research Foundation, Inc.
- Fan assembly11 Aug 2026US 12,704,129 B2Illinois Tool Works Inc.
- Device for homogenizing a gas distribution in a process chamber14 Jul 2026US 12,678,745 B2VAT Holding AG
- Shuttle kiln with enhanced radiant heat retention31 Mar 2026US 12,590,762 B2Corning Incorporated
- Method for providing a rotating shaft into a high pressure, high temperature furnace24 Sep 2026US 2026/0287260 A1The Florida State University Research Foundation, Inc.
- Method for providing a rotating shaft into a high pressure, high temperature furnace24 Sep 2026US 2026/0287261 A1The Florida State University Research Foundation, Inc.
- Heating system and annealing furnace using such system17 Sep 2026US 2026/0276307 A1Ningbo Sachsen Industrial Technology 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
Most cited
By later US patents
- Kiln with ventilation system347US 4,863,374 AThe Edward Orton, Jr. Ceramic Foundation · 1989
- Air delivery system for an impingement food preparation oven62US 4,626,661 ALincoln Manufacturing Company, Inc. · 1986
- System and method of curing concrete products in a kiln34US 5,257,464 A1993
- Heating furnace31US 5,018,707 AGas Research Institute · 1991
- Towel warmer27US 6,525,298 B12003