Y02B 30/13
Hot air central heating systems using heat pumps
Y02B30/13 (Hot air central heating systems using heat pumps) appears on 197 US grants and 131 published applications in this corpus.
Search patents in Y02B- Granted patents
- 197
- Published applications
- 131
- Assignees
- 103
- Inventors
- 370
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 10 | 0 |
| 1979 | 10 | 0 |
| 1980 | 12 | 0 |
| 1981 | 9 | 0 |
| 1982 | 10 | 0 |
| 1983 | 9 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 5 |
| 2010 | 0 | 3 |
| 2011 | 1 | 10 |
| 2012 | 1 | 11 |
| 2013 | 1 | 14 |
| 2014 | 5 | 7 |
| 2015 | 4 | 17 |
| 2016 | 7 | 8 |
| 2017 | 11 | 10 |
| 2018 | 12 | 10 |
| 2019 | 10 | 9 |
| 2020 | 6 | 8 |
| 2021 | 4 | 8 |
| 2022 | 6 | 3 |
| 2023 | 1 | 3 |
| 2024 | 7 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for controlling HVAC systems5 May 2026US 12,618,579 B2Daikin Manufacturing Company, L.P.
- Air conditioning system19 Aug 2025US 12,392,521 B2Mitsubishi Electric Corporation
- Hybrid fossil fuel-electric multi-function heat pump24 Dec 2024US 12,173,910 B2Stone Mountain Technologies, Inc.
- Heating and cooling systems and apparatuses with phase change materials28 May 2024US 11,994,348 B2Stash Energy Inc.
- Heating unit with a partition5 Mar 2024US 11,920,831 B2Johnson Controls Tyco IP Holdings LLP
- Synergistic system13 Mar 2025US 2025/0088003 A1Intellihot, Inc.
- System and method for controlling hvac systems18 Apr 2024US 2024/0125503 A1Daikin Manufacturing Company, L.P.
- Method and system for monitoring energy flow of hvac system9 Mar 2023US 2023/0071155 A1
- Air conditioning system2 Mar 2023US 2023/0065130 A1Mitsubishi Electric Corporation
- Diverter plate for furnace of hvac system26 Jan 2023US 2023/0025710 A1Johnson Controls Tyco IP Holdings LLP
Most cited
By later US patents
- Desiccant assisted air conditioner154US 4,887,438 A1989
- Heat pump air conditioning system132US 4,420,947 AMitsubishi Denki Kabushiki Kaisha · 1983
- Methods, systems, and related architectures for managing network connected thermostats130US 8,843,239 B2Nest Labs, Inc. · 2014
- Multistage thermostat using integral initiation change means93US 4,332,352 AHoneywell Inc. · 1982
- Air conditioning apparatus including a heat pump73US 4,143,707 AThe Trane Company · 1979