Heater, and fluid heating device
US-2026046982-A1 · Feb 12, 2026 · US
Portable immersion heaters
Portable immersion heaters · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H05B3/80 |
| Official title | Portable immersion heaters |
| Display label | Portable immersion heaters |
| Total patents | 46 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 7 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 7 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
An electrical fluid heater
US-2026029159-A1 · Jan 29, 2026 · US
Immersion circulator cooking devices
US-12457667-B2 · Oct 28, 2025 · US
Sous vide device
US-12336653-B2 · Jun 24, 2025 · US
Device for evaporating volatile substances
US-12263281-B2 · Apr 1, 2025 · US
Sensor system and integrated heater-sensor for measuring and controlling performance of a heater system
US-2025060133-A1 · Feb 20, 2025 · US
Sensor system and integrated heater-sensor for measuring and controlling performance of a heater system
US-12135147-B2 · Nov 5, 2024 · US
Motorless sous vide
US-2024164566-A1 · May 23, 2024 · US
Device for supplying injection water
US-11859580-B2 · Jan 2, 2024 · US
Apparatus for heating plastic preforms with stationary applicator
US-11787090-B2 · Oct 17, 2023 · US
Thermal immersion device
US-2023269835-A1 · Aug 24, 2023 · US
Atomizing nozzle and electronic atomizing inhaler
US-11707091-B2 · Jul 25, 2023 · US
Sous vide device
US-2023148782-A1 · May 18, 2023 · US
Sensor system and integrated heater-sensor for measuring and controlling performance of a heater system
US-2023116575-A1 · Apr 13, 2023 · US
Sous vide device
US-11612267-B2 · Mar 28, 2023 · US
Device for supplying injection water
US-2023008820-A1 · Jan 12, 2023 · US
Sensor system and integrated heater-sensor for measuring and controlling performance of a heater system
US-11525744-B2 · Dec 13, 2022 · US
Improvements in immersion circulator cooking devices
US-2022086960-A1 · Mar 17, 2022 · US
Device for evaporating volatile substances
US-2021162087-A1 · Jun 3, 2021 · US
Apparatus for heating plastic preforms with stationary applicator
US-2021046677-A1 · Feb 18, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H05B3/80?
- CPC H05B3/80 is the Cooperative Patent Classification code for “Portable immersion heaters.”
- How many patents are filed under CPC H05B3/80 (Portable immersion heaters)?
- Our database includes 46 publications tagged with this CPC code.
- Is patent activity under CPC H05B3/80 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).