Hydro-cyclone system
US-12521735-B2 · Jan 13, 2026 · US
Bulkheads or central bodies in the discharge opening
Bulkheads or central bodies in the discharge opening · 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 | B04C5/181 |
| Official title | Bulkheads or central bodies in the discharge opening |
| Display label | Bulkheads or central bodies in the discharge opening |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 3 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Centrifugal separator
US-2024157375-A1 · May 16, 2024 · US
Apparatus and method to separate and condition multiphase flow
US-11850605-B2 · Dec 26, 2023 · US
Apparatus and Method to Separate and Condition Multiphase Flow
US-2023278045-A1 · Sep 7, 2023 · US
Hydro-cyclone system
US-2023037357-A1 · Feb 9, 2023 · US
Hydrocyclone reject chamber
US-11285496-B2 · Mar 29, 2022 · US
Reverse flow cyclones
US-11229917-B2 · Jan 25, 2022 · US
Cyclone type liquid-vapor separator and forced circulation type evaporator using the same
US-10799811-B2 · Oct 13, 2020 · US
Fluid separator
US-10569198-B2 · Feb 25, 2020 · US
Reverse flow cyclones
US-2020001309-A1 · Jan 2, 2020 · US
Cyclone type liquid-vapor separator and forced circulation type evaporator using the same
US-2019336883-A1 · Nov 7, 2019 · US
Cyclone type liquid-vapor separator and forced circulation type evaporator using the same
US-10384149-B2 · Aug 20, 2019 · US
Sand separator vessel perforated replaceable insert apparatus and method
US-10207279-B2 · Feb 19, 2019 · US
Swirl tube separators
US-2018043292-A1 · Feb 15, 2018 · US
Fluid separator
US-2018021701-A1 · Jan 25, 2018 · US
Cyclonic separation device
US-9872592-B2 · Jan 23, 2018 · US
Method and a device for separating a multiphasic liquid
US-9797233-B2 · Oct 24, 2017 · US
Sand separator vessel perforated replaceable insert apparatus and method
US-2017128958-A1 · May 11, 2017 · US
Integrated cyclone separation device
US-9636691-B2 · May 2, 2017 · US
Cyclone type liquid-vapor separator and forced circulation type evaporator using the same
US-2017095753-A1 · Apr 6, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B04C5/181?
- CPC B04C5/181 is the Cooperative Patent Classification code for “Bulkheads or central bodies in the discharge opening.”
- How many patents are filed under CPC B04C5/181 (Bulkheads or central bodies in the discharge opening)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC B04C5/181 growing?
- Publication counts under this code: 3 in 2023 vs 1 in 2024 (latest complete years).