Heat pump closed loop process drying
US-2024353176-A1 · Oct 24, 2024 · 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 | F26B3/04 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 489 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 20 |
| 2017 | 29 |
| 2018 | 54 |
| 2019 | 43 |
| 2020 | 44 |
| 2021 | 45 |
| 2022 | 40 |
| 2023 | 55 |
| 2024 | 67 |
| 2025 | 76 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dryer control in a printer
US-10112413-B2 · Oct 30, 2018 · US
Method for dewatering acoustical panels
US-10094614-B2 · Oct 9, 2018 · US
Washstand furniture
US-2018259261-A1 · Sep 13, 2018 · US
Washstand furniture
US-2018259258-A1 · Sep 13, 2018 · US
Process for ore moisture reduction in conveyor belts and transfer chutes
US-9863702-B2 · Jan 9, 2018 · US
Paint Baking Oven and Paint Baking Method
US-2017370645-A1 · Dec 28, 2017 · US
Coat drying device and coat drying method
US-2017314853-A1 · Nov 2, 2017 · US
Coat drying device and coat drying method
US-2017314857-A1 · Nov 2, 2017 · US
Unidirectional multi-path lumber kilns
US-2017314856-A1 · Nov 2, 2017 · US
Mixed flow grain dryer with vacuum cool heat recovery system
US-2017299263-A1 · Oct 19, 2017 · US
Apparatus for drying electrode plate
US-2017276429-A1 · Sep 28, 2017 · US
Substrate processing apparatus and substrate processing method
US-2017278726-A1 · Sep 28, 2017 · US
Method of arranging treatment process
US-2017261258-A1 · Sep 14, 2017 · US
Smear preparing apparatus
US-2017261412-A1 · Sep 14, 2017 · US
Variable humidity drying
US-9731515-B2 · Aug 15, 2017 · US
Method and facility for thermally drying pasty products
US-2017227288-A1 · Aug 10, 2017 · US
Unidirectional multi-path lumber kilns
US-9709328-B2 · Jul 18, 2017 · US
Chip dryer with integrated exhaust gas treatment
US-2017176102-A1 · Jun 22, 2017 · US
Drying apparatus and drying method
US-2017167789-A1 · Jun 15, 2017 · US
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F26B3/04?
- CPC F26B3/04 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F26B3/04 (Mechanical Engineering)?
- Our database includes 489 publications tagged with this CPC code.
- Is patent activity under CPC F26B3/04 growing?
- Publication counts under this code: 67 in 2024 vs 76 in 2025 (latest complete years).