Mechanically stable ultrafiltration membrane, and method for producing same
US-2022410081-A1 · Dec 29, 2022 · US
Specific viscosities of materials involved
Specific viscosities of materials involved · 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 | B01D2323/06 |
| Official title | Specific viscosities of materials involved |
| Display label | Specific viscosities of materials involved |
| Total patents | 84 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 9 |
| 2017 | 9 |
| 2018 | 11 |
| 2019 | 4 |
| 2020 | 12 |
| 2021 | 8 |
| 2022 | 7 |
| 2023 | 9 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for separating organic zinc catalyst using filtering membrane
US-2021253790-A1 · Aug 19, 2021 · US
Selective extraction film for mining application
US-11077408-B2 · Aug 3, 2021 · US
Free-standing liquid membranes for substance separation, filtration, extraction, and blockage
US-2021229039-A1 · Jul 29, 2021 · US
Porous membrane
US-2021197133-A1 · Jul 1, 2021 · US
Membranes in the form of hollow fibers for the separation of co2 from natural gas and method of preparation by heat treatment and development of a polymeric membrane precursor
US-2021154620-A1 · May 27, 2021 · US
Free-standing liquid membranes for substance separation, filtration, extraction, and blockage
US-11014048-B2 · May 25, 2021 · US
Porous polyether sulfone film and production method therefor
US-11001691-B2 · May 11, 2021 · US
Membrane with improved permeability and selectivity
US-10888823-B2 · Jan 12, 2021 · US
Graphene oxide membranes and methods related thereto
US-10835873-B2 · Nov 17, 2020 · US
Hemodialyzer for blood purification
US-2020316533-A1 · Oct 8, 2020 · US
Membrane for blood purification
US-2020269197-A1 · Aug 27, 2020 · US
Hollow fiber membrane, and method for producing hollow fiber membrane
US-10744467-B2 · Aug 18, 2020 · US
Free-standing liquid membranes for substance separation, filtration, extraction, and blockage
US-2020246753-A1 · Aug 6, 2020 · US
Free-standing liquid membranes for substance separation, filtration, extraction, and blockage
US-10668431-B1 · Jun 2, 2020 · US
Membrane for blood purification
US-10661231-B2 · May 26, 2020 · US
Hemodialyzer for blood purification
US-10661230-B2 · May 26, 2020 · US
Free-standing liquid membranes for substance separation, filtration, extraction, and blockage
US-2020147552-A1 · May 14, 2020 · US
Process for preparing membranes
US-10633499-B2 · Apr 28, 2020 · US
Cured epoxysilicone layer membrane for nanofiltration
US-2020122094-A1 · Apr 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2323/06?
- CPC B01D2323/06 is the Cooperative Patent Classification code for “Specific viscosities of materials involved.”
- How many patents are filed under CPC B01D2323/06 (Specific viscosities of materials involved)?
- Our database includes 84 publications tagged with this CPC code.
- Is patent activity under CPC B01D2323/06 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).