A47C 21/048
For heating
Official title: {for heating}
A47C21/048 (For heating) appears on 393 US grants and 493 published applications in this corpus.
Search patents in A47C- Granted patents
- 393
- Published applications
- 493
- Assignees
- 158
- Inventors
- 651
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 8 | 0 |
| 1988 | 1 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 11 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 2 |
| 2003 | 4 | 5 |
| 2004 | 5 | 4 |
| 2005 | 3 | 8 |
| 2006 | 5 | 14 |
| 2007 | 2 | 8 |
| 2008 | 0 | 4 |
| 2009 | 5 | 6 |
| 2010 | 0 | 12 |
| 2011 | 8 | 12 |
| 2012 | 6 | 10 |
| 2013 | 9 | 10 |
| 2014 | 6 | 14 |
| 2015 | 13 | 42 |
| 2016 | 11 | 22 |
| 2017 | 13 | 28 |
| 2018 | 20 | 21 |
| 2019 | 10 | 33 |
| 2020 | 25 | 28 |
| 2021 | 22 | 47 |
| 2022 | 22 | 25 |
| 2023 | 26 | 42 |
| 2024 | 29 | 34 |
| 2025 | 29 | 32 |
| 2026 | 17 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Temperature regulating foam padding with passive cooling and active heating6 Oct 2026US 12,751,558 B2Variowell Development GmbH
- Bed having features for determining and modifying temperature of a sleep environment25 Aug 2026US 12,717,362 B2Sleep Number Corporation
- Sleep sequence initiation for a smart bed11 Aug 2026US 12,702,239 B2Purple Innovation, LLC
- Late-model compressible furniture4 Aug 2026US 12,696,982 B2
- Multi-zone temperature modulation system for bed or blanket23 Jun 2026US 12,660,932 B1Sleep Solutions Inc.
- Temperature controlled mattress cover with zones24 Sep 2026US 2026/0283369 A1Eight Sleep Inc.
- Temperature controlled mattress cover with biometric data sensors24 Sep 2026US 2026/0283370 A1Eight Sleep Inc.
- Temperature controlled bed device for determining sleep phase24 Sep 2026US 2026/0284350 A1Eight Sleep Inc.
- Temperature controlled bed device for determining user history24 Sep 2026US 2026/0284351 A1Eight Sleep Inc.
- Heat exchange system for patient support surface20 Aug 2026US 2026/0240680 A1Hill-Rom Services, Inc.
Most cited
By later US patents
- Temperature control for a bed290US 5,948,303 A1999
- Inflatable air cell having combined pneumatically adjusted occupant support and thermal conditioning224US 6,273,810 B1McCord Winn Textron Inc. · 2001
- Apparatus and method for preventing sudden infant death syndrome205US 5,887,304 A1999
- Climate controlled bed assembly198US 8,181,290 B2Amerigon Incorporated · 2012
- Air conditioned bed175US 8,065,763 B2Amerigon Incorporated · 2011