Treatment facility and method for treating workpieces and/or material webs
US-2025347464-A1 · Nov 13, 2025 · US
Mechanical Engineering
Mechanical Engineering · 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 | F26B21/04 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 51 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 5 |
| 2019 | 7 |
| 2020 | 8 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 7 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Treatment facility for treating workpieces, and method for treating workpieces
US-2025305765-A1 · Oct 2, 2025 · US
Treatment installation and method for treating workpieces
US-12422188-B2 · Sep 23, 2025 · US
Monitoring system of heat pump type low-temperature circulating grain dryer based on internet of things
US-2025248413-A1 · Aug 7, 2025 · US
Treatment system and method for treating workpieces
US-2025196183-A1 · Jun 19, 2025 · US
Method to relieve stress in capsule shells to reduce propensity to break
US-2025025377-A1 · Jan 23, 2025 · US
Volatile organic compound recovery device and recovery method
US-12180605-B2 · Dec 31, 2024 · US
Method to relieve stress in capsule shells to reduce propensity to break
US-12161605-B2 · Dec 10, 2024 · US
Drying system
US-2024318911-A1 · Sep 26, 2024 · US
Drying device and method for drying container units exhibiting solvent
US-2024318912-A1 · Sep 26, 2024 · US
Drying device, printing apparatus, and control method thereof
US-2024308247-A1 · Sep 19, 2024 · US
Drying device for drying containers containing cleaning fluid, control device, and method
US-2024280319-A1 · Aug 22, 2024 · US
Hybrid kiln for drying wood, biochar and agriculture products
US-11994342-B2 · May 28, 2024 · US
Electrostatic spray dryer system
US-11712638-B2 · Aug 1, 2023 · US
Processes and systems for de-watering sludge
US-2023234874-A1 · Jul 27, 2023 · US
Dryer, drying method, and dehumidification filter
US-2023062833-A1 · Mar 2, 2023 · US
Device for controlling the temperature of objects
US-11525631-B2 · Dec 13, 2022 · US
Hybrid kiln for drying wood, biochar and agriculture products
US-2022113088-A1 · Apr 14, 2022 · US
Volatile organic compound recovery device and recovery method
US-2022090287-A1 · Mar 24, 2022 · US
Coating drying method and device therefor
US-11262127-B2 · Mar 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F26B21/04?
- CPC F26B21/04 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F26B21/04 (Mechanical Engineering)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC F26B21/04 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).