Method of manufacturing a humidity control device and humidity control device
US-2024207816-A1 · Jun 27, 2024 · US
Selection of materials for use as drying agents
Selection of materials for use as drying agents · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D53/28 |
| Official title | Selection of materials for use as drying agents |
| Display label | Selection of materials for use as drying agents |
| Total patents | 368 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 16 |
| 2017 | 23 |
| 2018 | 35 |
| 2019 | 31 |
| 2020 | 38 |
| 2021 | 35 |
| 2022 | 43 |
| 2023 | 48 |
| 2024 | 31 |
| 2025 | 42 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for dehumidifying moist gas mixtures
US-2017354921-A1 · Dec 14, 2017 · US
Process for dehumidifying moist gas mixtures
US-2017354924-A1 · Dec 14, 2017 · US
Process for dehumidifying moist gas mixtures
US-2017354923-A1 · Dec 14, 2017 · US
Gas Purifier
US-2017333841-A1 · Nov 23, 2017 · US
Resin composition for sealing electronic devices, and electronic device
US-2017331070-A1 · Nov 16, 2017 · US
Dehumidification system
US-9815020-B2 · Nov 14, 2017 · US
Hygroscopic material and dehumidifier using same
US-2017276380-A1 · Sep 28, 2017 · US
Water absorbent material, dehumidification device, and dehumidification method
US-2017266610-A1 · Sep 21, 2017 · US
Dehumidification device
US-2017266605-A1 · Sep 21, 2017 · US
Vapor separator and dehumidifier using the same
US-2017259205-A1 · Sep 14, 2017 · US
Fluid Separation Processes Using Membranes Based on Fluorinated and Perfluorinated Polymers
US-2017259204-A1 · Sep 14, 2017 · US
Treatment of alcohol compositions
US-9713789-B2 · Jul 25, 2017 · US
Gas purifier
US-9694319-B2 · Jul 4, 2017 · US
Polyhydric alcohol compositions for gas dehydration
US-2017183587-A1 · Jun 29, 2017 · US
Desiccant and the same desiccant-employing organic EL element
US-9662633-B2 · May 30, 2017 · US
Exterior Aircraft Light Unit
US-2017138584-A1 · May 18, 2017 · US
Hygroscopic particles
US-2017120217-A1 · May 4, 2017 · US
Humidity controlling apparatus
US-2017113180-A1 · Apr 27, 2017 · US
Humidity controlling apparatus
US-2017065930-A1 · Mar 9, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D53/28?
- CPC B01D53/28 is the Cooperative Patent Classification code for “Selection of materials for use as drying agents.”
- How many patents are filed under CPC B01D53/28 (Selection of materials for use as drying agents)?
- Our database includes 368 publications tagged with this CPC code.
- Is patent activity under CPC B01D53/28 growing?
- Publication counts under this code: 31 in 2024 vs 42 in 2025 (latest complete years).