Start-up procedure for rapid attainment of optimal steady-state performance in membrane separation
US-12409417-B2 · Sep 9, 2025 · US
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with flexible membrane tubes
with flexible membrane tubes · 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 | B01D63/068 |
| Official title | {with flexible membrane tubes} |
| Display label | with flexible membrane tubes |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2019 | 3 |
| 2020 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas recovering apparatus, semiconductor manufacturing system, and gas recovering method
US-11766635-B2 · Sep 26, 2023 · US
Start-up procedure for rapid attainment of optimal steady-state performance in membrane separation
US-2022355250-A1 · Nov 10, 2022 · US
Gas recovering apparatus, semiconductor manufacturing system, and gas recovering method
US-2022072473-A1 · Mar 10, 2022 · US
Fluid degassing systems
US-10765969-B2 · Sep 8, 2020 · US
Membrane element and membrane element end member used in same
US-10717049-B2 · Jul 21, 2020 · US
Fluid degassing systems
US-2019030461-A1 · Jan 31, 2019 · US
Fluid degassing systems
US-2019030459-A1 · Jan 31, 2019 · US
Membrane element and membrane element end member used in same
US-2019009220-A1 · Jan 10, 2019 · US