Gas sparger for an immersed membrane
US-11219866-B2 · Jan 11, 2022 · US
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Operations & Transport
Operations & Transport · 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 | B01F2003/04304 |
| Official title | — |
| Display label | Operations & Transport (mapped technology topic) |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2019 | 1 |
| 2020 | 2 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aerator device, filter system including an aerator device, and method of aerating a filter using an aerator device
US-10828607-B2 · Nov 10, 2020 · US
Optimized nozzle for injecting pressurized water containing a dissolved gas
US-10626024-B2 · Apr 21, 2020 · US
Gas sparger for an immersed membrane
US-10471393-B2 · Nov 12, 2019 · US
Optimized nozzle for injecting pressurized water containing a dissolved gas
US-2017349453-A1 · Dec 7, 2017 · US
Gas diffusion system and method for introducing a gas stream in an apparatus, in particular a passivating gas stream in a urea plant
US-9694334-B2 · Jul 4, 2017 · US
Pulse aeration for immersed membranes
US-9463419-B2 · Oct 11, 2016 · US
Gas sparger for an immersed membrane
US-9358505-B2 · Jun 7, 2016 · US