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US-2024425228-A1 · Dec 26, 2024 · US
Packages having self-contained heating means, e.g. heating generated by the reaction of two chemicals (warming devices A47J36/24)
Packages having self-contained heating means, e.g. heating generated by the reaction of two chemicals (warming devices A47J36/24) · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B65D81/3484 |
| Official title | {Packages having self-contained heating means, e.g. heating generated by the reaction of two chemicals (warming devices A47J36/24)} |
| Display label | Packages having self-contained heating means, e.g. heating generated by the reaction of two chemicals (warming devices A47J36/24) |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 2 |
| 2020 | 4 |
| 2022 | 1 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Retortable self-heating food container with air access structure
US-12091232-B2 · Sep 17, 2024 · US
Phase change material
US-2022064511-A1 · Mar 3, 2022 · US
Retortable self-heating food container with air access structure
US-2020130919-A1 · Apr 30, 2020 · US
Flexible pouch with heating modules
US-10634388-B2 · Apr 28, 2020 · US
Stackable cases
US-10618692-B2 · Apr 14, 2020 · US
Retortable self-heating food container with air access structure
US-10549899-B2 · Feb 4, 2020 · US
Laminate structure with access openings
US-10369764-B2 · Aug 6, 2019 · US
Multifunction programmable foodstuff preparation
US-10206539-B2 · Feb 19, 2019 · US
Laminate structure with access openings
US-2018319123-A1 · Nov 8, 2018 · US
Laminate structure with access openings
US-10052839-B2 · Aug 21, 2018 · US
Storage Container with Temperature Control
US-2018209712-A1 · Jul 26, 2018 · US
Insulated Bag Roll System
US-2018208387-A1 · Jul 26, 2018 · US
Phase change material
US-2018155595-A1 · Jun 7, 2018 · US
Foodstuff Packaging Assembly and Related Methods
US-2018086537-A1 · Mar 29, 2018 · US
Systems and methods for thermal management through use of ammonium carbamate
US-9863725-B1 · Jan 9, 2018 · US
Laminate structure with access openings
US-2017368787-A1 · Dec 28, 2017 · US
Laminate structure with access openings
US-9782946-B2 · Oct 10, 2017 · US
Stackable cases
US-2017259956-A1 · Sep 14, 2017 · US
Method for thermal management through use of ammonium carbamate
US-9677817-B1 · Jun 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B65D81/3484?
- CPC B65D81/3484 is the Cooperative Patent Classification code for “Packages having self-contained heating means, e.g. heating generated by the reaction of two chemicals (warming devices A47J36/24).”
- How many patents are filed under CPC B65D81/3484 (Packages having self-contained heating means, e.g. heating generated by the reaction of two chemicals (warming devices A47J36/24))?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC B65D81/3484 growing?
- Publication counts under this code: 1 in 2022 vs 2 in 2024 (latest complete years).