F26B 21/002
With means for indirect air heating, i.e. using heat exchangers
Official title: {with means for indirect air heating, i.e. using heat exchangers}
F26B21/002 (With means for indirect air heating, i.e. using heat exchangers) appears on 27 US grants and 40 published applications in this corpus.
Search patents in F26B- Granted patents
- 27
- Published applications
- 40
- Assignees
- 33
- Inventors
- 96
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 4 |
| 2010 | 0 | 2 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 2 | 3 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 3 |
| 2020 | 1 | 2 |
| 2021 | 0 | 3 |
| 2022 | 3 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 3 |
| 2025 | 3 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heated paint drying system17 Mar 2026US 12,578,141 B2
- Can drying and moisture control system2 Sep 2025US 12,405,058 B2Stolle Machinery Company, LLC
- Heat supply-energy-saving equipment for printing and dyeing factory6 May 2025US 12,291,808 B2Guangdong University of Technology
- Apparatus and method for use in a flue-cured barn11 Mar 2025US 12,245,626 B2British American Tobacco (Investments) Limited
- Closed variable-frequency heat pump drying device with heat regenerator and control method thereof23 Apr 2024US 11,965,695 B2Shunde Polytechnic
- Dehumidifying module, wafer processing apparatus8 Oct 2026US 2026/0309414 A1Ebara Corporation
- Plant and related process for treating organic material23 Apr 2026US 2026/0110491 A1
- Transportable sargassum drying machine12 Mar 2026US 2026/0071816 A1
- Device and method for producing resin-coated cans24 Jul 2025US 2025/0235917 A1Toyo Seikan Group Holdings, Ltd.
- Fresh-air heat exchanger and method for providing heated fresh air with the electrically heated fresh air heat exchanger24 Jul 2025US 2025/0240850 A1Dürr Systems AG
Most cited
By later US patents
- Uninterrupted alternating air circulation for continuous drying lumber kilns19US 9,200,834 B1Kiln Drying Systems & Components, LLC · 2015
- Air cycle heat pump dryer17US 8,650,770 B12014
- Dryer13US 6,935,052 B2Eisenmann Maschinenbau KG · 2005
- Drier for a lacquering line12US 6,418,636 B1Eisermann Maschinenbau KG · 2002
- Forced convection heat exchangers capable of being used in kilns11US 6,393,723 B12002