Blood filter and method of manufacturing the same
US-2017354774-A1 · Dec 14, 2017 · US
Pore size
Pore size · 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 | B01D2239/1216 |
| Official title | Pore size |
| Display label | Pore size |
| Total patents | 591 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 26 |
| 2017 | 22 |
| 2018 | 26 |
| 2019 | 53 |
| 2020 | 65 |
| 2021 | 83 |
| 2022 | 82 |
| 2023 | 79 |
| 2024 | 65 |
| 2025 | 47 |
| 2026 | 18 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Porous material and methods of making and of using the same
US-2017260351-A1 · Sep 14, 2017 · US
Long-life air filter for automobiles and method of manufacturing the long-life air filter
US-2017225110-A1 · Aug 10, 2017 · US
Porogen compositions, methods of making and uses
US-2017174858-A1 · Jun 22, 2017 · US
Water-proof air-permeable filter and use of the same
US-9636616-B2 · May 2, 2017 · US
Fuel filter monitor for fuel streams
US-9631589-B2 · Apr 25, 2017 · US
Filter System and Filter Element Having a Glass Fiber Filter Medium and a Sintered Body
US-2017080370-A1 · Mar 23, 2017 · US
Filter material
US-9592465-B2 · Mar 14, 2017 · US
Non-woven fiber fabric, and production method and production device therefor
US-2017065917-A1 · Mar 9, 2017 · US
Method and apparatus for manufacturing a fluid treatment element
US-2016367916-A1 · Dec 22, 2016 · US
High flux high efficiency nanofiber membranes and methods of production thereof
US-9511329-B2 · Dec 6, 2016 · US
Filtration material for filters, and filter cartridge
US-9498742-B2 · Nov 22, 2016 · US
Leukocyte removal filter material and leukocyte removal method
US-2016310883-A1 · Oct 27, 2016 · US
Stable filter media including nanofibers
US-2016303498-A1 · Oct 20, 2016 · US
High bulk coalescing filter media and use thereof
US-2016296856-A1 · Oct 13, 2016 · US
Filter medium for obtaining plasma, and associated filtration device and method
US-2016279551-A1 · Sep 29, 2016 · US
Novel cell separation filter material and filter obtained by layering same
US-2016263297-A1 · Sep 15, 2016 · US
Coalescence filter
US-2016263509-A1 · Sep 15, 2016 · US
Filter element
US-9440172-B2 · Sep 13, 2016 · US
Metal fiber web based filter
US-9433882-B2 · Sep 6, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2239/1216?
- CPC B01D2239/1216 is the Cooperative Patent Classification code for “Pore size.”
- How many patents are filed under CPC B01D2239/1216 (Pore size)?
- Our database includes 591 publications tagged with this CPC code.
- Is patent activity under CPC B01D2239/1216 growing?
- Publication counts under this code: 65 in 2024 vs 47 in 2025 (latest complete years).