F23J 2213/203
Between stack/duct and combustion apparatus
Official title: between stack/duct and combustion apparatus
F23J2213/203 (Between stack/duct and combustion apparatus) appears on 36 US grants and 46 published applications in this corpus.
Search patents in F23J- Granted patents
- 36
- Published applications
- 46
- Assignees
- 33
- Inventors
- 87
- Latest grant
- 29 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 2 | 4 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 3 |
| 2017 | 2 | 3 |
| 2018 | 3 | 3 |
| 2019 | 2 | 2 |
| 2020 | 2 | 3 |
| 2021 | 2 | 5 |
| 2022 | 4 | 3 |
| 2023 | 1 | 2 |
| 2024 | 3 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hybrid tank and tankless water heating system29 Oct 2024US 12,130,053 B2Rinnai America Corporation
- Burner cover insulation device for a boiler and method for manufacturing such a device23 Jul 2024US 12,044,405 B2Industrial Ceramic Linings B.V.
- Flue pipe separation sensing apparatus and boiler including the same7 May 2024US 11,976,819 B2Kyungdong Navien Co., Ltd.
- Device for safely re-directing carbon monoxide exhaust from generators21 Mar 2023US 11,608,769 B2
- Modular exhaust18 Oct 2022US 11,473,857 B2Intellihot, Inc.
- Exhaust adapter26 Mar 2026US 2026/0085834 A1Rinnai Corporation
- Chimney systems with integrated waste heat recovery and related methods9 Oct 2025US 2025/0314380 A1Enervex, Inc.
- Flue systems for fuel burning devices6 Jul 2023US 2023/0213188 A1Rheem Manufacturing Company
- Flue pipe separation sensing apparatus and boiler including the same29 Jun 2023US 2023/0204209 A1Kyungdong Navien Co., Ltd.
- Exhaust adapter29 Dec 2022US 2022/0412555 A1Noritz Corporation
Most cited
By later US patents
- Furnace inducer outlet box assembly42US 4,603,680 ACarrier Corporation · 1986
- Flue pipe connection18US 4,481,935 AArkla Industries, Inc. · 1984
- Method and apparatus for use in installing a firebox in a fireplace in connection with a flue liner12US 5,263,470 AValor Limited · 1993
- Modular flue adapter system and method10US 8,794,228 B2FPI Fireplace Products International Ltd. · 2014
- Adjustable pipe fitting9US 5,328,213 AEljer Industries, Inc. · 1994