Finishing apparatus for a spray drying system
US-12571587-B2 · Mar 10, 2026 · 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 | F26B21/331 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 64 |
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 | 3 |
| 2016 | 1 |
| 2017 | 2 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 16 |
| 2025 | 21 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Spray drying system
US-12535269-B2 · Jan 27, 2026 · US
Methods For A Spray Drying System
US-2026014302-A1 · Jan 15, 2026 · US
Transportable and Expandable Blood Plasma Collection and Spray Drying Facility
US-2025345720-A1 · Nov 13, 2025 · US
Spray Drying System
US-2025341361-A1 · Nov 6, 2025 · US
Shoe care device and shoe care set including same
US-2025325165-A1 · Oct 23, 2025 · US
Methods for a spray drying system
US-12447244-B1 · Oct 21, 2025 · US
Dried Plasma System
US-2025281849-A1 · Sep 11, 2025 · US
Disposable For A Spray Drying System
US-2025277621-A1 · Sep 4, 2025 · US
Disposable For A Spray Drying System
US-2025276255-A1 · Sep 4, 2025 · US
Baffle Plate Used In A Disposable For A Spray Drying System
US-2025277620-A1 · Sep 4, 2025 · US
Shoes care device
US-2025235077-A1 · Jul 24, 2025 · US
Method for providing dried plasma
US-12337260-B2 · Jun 24, 2025 · US
Drying apparatus and method of controlling same
US-2025185879-A1 · Jun 12, 2025 · US
Shoes care device
US-2025169674-A1 · May 29, 2025 · US
Drying apparatus and method of controlling same
US-2025160609-A1 · May 22, 2025 · US
Shoe care device and shoe care system
US-2025167481-A1 · May 22, 2025 · US
Disposable For A Spray Drying System
US-2025099868-A1 · Mar 27, 2025 · US
Shoes care device and control method thereof
US-2025098936-A1 · Mar 27, 2025 · US
Drying apparatus and method of controlling same
US-12256881-B2 · Mar 25, 2025 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F26B21/331?
- CPC F26B21/331 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F26B21/331 (Mechanical Engineering)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC F26B21/331 growing?
- Publication counts under this code: 16 in 2024 vs 21 in 2025 (latest complete years).