B65D 81/3484
Packages having self-contained heating means
Official title: {Packages having self-contained heating means, e.g. heating generated by the reaction of two chemicals (warming devices A47J36/24)}
B65D81/3484 (Packages having self-contained heating means) appears on 163 US grants and 194 published applications in this corpus.
Search patents in B65D- Granted patents
- 163
- Published applications
- 194
- Assignees
- 99
- Inventors
- 302
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 2 |
| 2002 | 3 | 8 |
| 2003 | 7 | 5 |
| 2004 | 2 | 6 |
| 2005 | 2 | 7 |
| 2006 | 6 | 9 |
| 2007 | 1 | 11 |
| 2008 | 3 | 9 |
| 2009 | 0 | 9 |
| 2010 | 3 | 11 |
| 2011 | 4 | 10 |
| 2012 | 1 | 5 |
| 2013 | 9 | 9 |
| 2014 | 3 | 9 |
| 2015 | 9 | 8 |
| 2016 | 6 | 6 |
| 2017 | 6 | 12 |
| 2018 | 7 | 9 |
| 2019 | 4 | 4 |
| 2020 | 7 | 9 |
| 2021 | 5 | 8 |
| 2022 | 4 | 8 |
| 2023 | 3 | 5 |
| 2024 | 6 | 5 |
| 2025 | 5 | 5 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Food container and method and system for making and using the same25 Aug 2026US 12,715,676 B2Prima Chefs, Inc.
- Heated food container11 Aug 2026US 12,702,251 B2
- Self-heating or self-cooling system and method13 Jan 2026US 12,522,419 B2
- Food container and method and system for making and using the same23 Dec 2025US 12,503,293 B2Prima Chefs, Inc.
- Oxygen-activated heat releasing enclosure19 Aug 2025US 12,391,457 B2Southernmost Escape, LLC
- Methods and systems for transporting temperature-sensitive products in cold environments16 Jul 2026US 2026/0200658 A1Illuminate Consulting, LLC
- Self-contained hot meal assembly with steam vent9 Jul 2026US 2026/0193012 A1
- Thermostable system for hot goods and preparation thereof2 Jul 2026US 2026/0184487 A1Council of Scientific and Industrial Research
- Food container and method and system for making and using the same19 Feb 2026US 2026/0048922 A1Prima Chefs, Inc.
- Bottle assembly having a bottle and a pod to treat liquid stored inside the bottle22 Jan 2026US 2026/0021950 A1
Most cited
By later US patents
- Self-regulating heat pack123US 5,984,953 ATempra Technology, Inc. · 1999
- Self-heating flexible package114US 6,289,889 B1TDA Research, Inc. · 2001
- Heat exchange package for food104US 3,970,068 A1976
- Flexible electrochemical heater65US 4,522,190 AUniversity of Cincinnati · 1985
- Disposable food feeder package62US 4,888,188 A1989