F27D 99/0035
Heating indirectly through a radiant surface
Official title: {Heating indirectly through a radiant surface}
F27D99/0035 (Heating indirectly through a radiant surface) appears on 73 US grants and 37 published applications in this corpus.
Search patents in F27D- Granted patents
- 73
- Published applications
- 37
- Assignees
- 55
- Inventors
- 138
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 3 |
| 2013 | 1 | 1 |
| 2014 | 1 | 4 |
| 2015 | 1 | 3 |
| 2016 | 0 | 4 |
| 2017 | 3 | 0 |
| 2018 | 4 | 1 |
| 2019 | 3 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 3 |
| 2024 | 2 | 0 |
| 2025 | 1 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radiant heating element with free end24 Feb 2026US 12,560,382 B2Drever International S.A.
- Radiant tube apparatus and method for manufacturing same22 Apr 2025US 12,281,371 B2Posco
- Support device for radiant tubes10 Sep 2024US 12,084,741 B2
- Method for reducing nitrogen oxides in strip heat treatment furnaces23 Jul 2024US 12,044,402 B2Andritz Technology and Asset Management GmbH
- Device for indirect heating by radiation in the form of a radiant housing27 Sep 2022US 11,454,392 B2Drever International S.A.
- Radiant element powered by heating means and use of it19 Mar 2026US 2026/0078958 A1
- Method for heating a furnace29 Jan 2026US 2026/0029198 A1
- High-speed jet and radiation combined heating device and rapid heating method thereof25 Dec 2025US 2025/0388991 A1Baoshan Iron & Steel Co., Ltd.
- System and process for curing a wet coating applied to a substrate25 Sep 2025US 2025/0296115 A1Ayotte Techno-Gaz Inc.
- Gypsum Calcining Apparatuses and Methods15 May 2025US 2025/0153124 A1United States Gypsum Company
Most cited
By later US patents
- Method and apparatus for conducting a process in a pulsating environment84US 4,699,588 ASonotech, Inc. · 1987
- Tunnel-type conveyor oven having two types of heat sources62US 5,906,485 AReading Pretzel Machinery Corp. · 1999
- Convection stabilized radiant oven49US 4,785,552 A1988
- Method and apparatus for solar destruction of toxic and hazardous materials40US 4,549,528 AFocus Environmental Systems · 1985
- Recuperator29US 4,496,314 A1985