F23N 3/08
Regulating air supply or draught: by power-assisted systems
Official title: by power-assisted systems
F23N3/08 (Regulating air supply or draught: by power-assisted systems) appears on 226 US grants and 172 published applications in this corpus.
Search patents in F23N- Granted patents
- 226
- Published applications
- 172
- Assignees
- 138
- Inventors
- 424
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 12 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 3 |
| 2002 | 2 | 2 |
| 2003 | 3 | 4 |
| 2004 | 3 | 9 |
| 2005 | 4 | 8 |
| 2006 | 4 | 3 |
| 2007 | 2 | 8 |
| 2008 | 0 | 2 |
| 2009 | 3 | 10 |
| 2010 | 5 | 7 |
| 2011 | 5 | 10 |
| 2012 | 6 | 7 |
| 2013 | 3 | 9 |
| 2014 | 6 | 12 |
| 2015 | 5 | 7 |
| 2016 | 11 | 8 |
| 2017 | 12 | 8 |
| 2018 | 6 | 6 |
| 2019 | 8 | 9 |
| 2020 | 15 | 10 |
| 2021 | 5 | 3 |
| 2022 | 3 | 9 |
| 2023 | 11 | 6 |
| 2024 | 2 | 3 |
| 2025 | 6 | 6 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for automated furnace inducer sensor output verification22 Sep 2026US 12,742,548 B2Rheem Manufacturing Company
- Electronic control device and flow rate measurement system17 Mar 2026US 12,578,091 B2Hitachi Astemo, Ltd.
- Motor controller for draft inducer motor in a furnace and method of use3 Mar 2026US 12,565,996 B2Regal Beloit America, Inc.
- Method and device for controlling the combustion in furnace systems17 Feb 2026US 12,553,607 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- System and method for forced air control in a kamado-style cooker25 Nov 2025US 12,480,660 B2Spider Grills, LLC
- Device for delivering a gaseous mixture, corresponding delivery apparatus and corresponding method of use3 Sep 2026US 2026/0258947 A1Sit S.P.A.
- Method and system for controlling operation of an inducer motor of a combustion system30 Apr 2026US 2026/0117973 A1Carrier Corporation
- Combustion air delivery device system for fryers with filter clogging measurement and automatic adoption of airflow to compensate26 Mar 2026US 2026/0084082 A1The Frymaster Corporation
- Low gas pressure detection and compensation operation method of gas water heater18 Dec 2025US 2025/0383087 A1
- Method for operating an automated two-burner biomass cookstove13 Nov 2025US 2025/0347410 A1
Most cited
By later US patents
- Electronically commutated motor1,555US 4,169,990 AGeneral Electric Company · 1979
- Electronically commutated motor systems and control therefor813US 4,459,519 AGeneral Electric Company · 1984
- Refrigeration system and control therefor123US 4,015,182 AGeneral Electric Company · 1977
- Variable speed inducer motor control method99US 5,791,332 ACarrier Corporation · 1998
- Motor controls, refrigeration systems and methods of motor operation and control97US 5,376,866 AGeneral Electric Company · 1994