Shuttle kiln exhaust configuration
US-2022397347-A1 · Dec 15, 2022 · US
Circulating atmospheres by mechanical means
Circulating atmospheres by mechanical means · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F27D7/04 |
| Official title | Circulating atmospheres by mechanical means |
| Display label | Circulating atmospheres by mechanical means |
| Total patents | 78 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 10 |
| 2017 | 13 |
| 2018 | 6 |
| 2019 | 10 |
| 2020 | 7 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Furnace for producing secondary battery cathode material and method for firing secondary battery cathode material
US-2022065534-A1 · Mar 3, 2022 · US
Resin curing device and resin curing method
US-2021291221-A1 · Sep 23, 2021 · US
Oven insulation arrangement
US-10809238-B2 · Oct 20, 2020 · US
Heating furnace for heating annular component
US-10718570-B2 · Jul 21, 2020 · US
Heat treatment device
US-10690416-B2 · Jun 23, 2020 · US
Conveying a material to be conveyed
US-2020103170-A1 · Apr 2, 2020 · US
Furnace
US-2020103107-A1 · Apr 2, 2020 · US
Continuous annealing apparatus
US-10597749-B2 · Mar 24, 2020 · US
Furnace
US-10551059-B2 · Feb 4, 2020 · US
Heating device for annular component and annular cavity thereof
US-10378822-B2 · Aug 13, 2019 · US
Apparatus and method for calcination of gypsum
US-10350564-B2 · Jul 16, 2019 · US
Carburizing device
US-10323315-B2 · Jun 18, 2019 · US
Hinged baffle for autoclave that deploys at a target temperature during a run cycle
US-10309726-B2 · Jun 4, 2019 · US
Heat treatment apparatus, heat treatment method, and storage medium
US-10217652-B2 · Feb 26, 2019 · US
Fluidized calciner
US-10209006-B2 · Feb 19, 2019 · US
Oven insulation arrangement
US-2019049417-A1 · Feb 14, 2019 · US
Airflow in autoclaves
US-10203157-B2 · Feb 12, 2019 · US
Continuous annealing apparatus
US-2019032168-A1 · Jan 31, 2019 · US
Heating furnace for heating annular component
US-2019003771-A1 · Jan 3, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F27D7/04?
- CPC F27D7/04 is the Cooperative Patent Classification code for “Circulating atmospheres by mechanical means.”
- How many patents are filed under CPC F27D7/04 (Circulating atmospheres by mechanical means)?
- Our database includes 78 publications tagged with this CPC code.
- Is patent activity under CPC F27D7/04 growing?
- Publication counts under this code: 3 in 2024 vs 6 in 2025 (latest complete years).