Surfactant removal from produced waters
US-10501340-B2 · Dec 10, 2019 · US
by centrifuging suspensions (centrifuges B04B)
by centrifuging suspensions (centrifuges B04B) · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C02F1/385 |
| Official title | {by centrifuging suspensions (centrifuges B04B)} |
| Display label | by centrifuging suspensions (centrifuges B04B) |
| Total patents | 147 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 12 |
| 2017 | 17 |
| 2018 | 19 |
| 2019 | 18 |
| 2020 | 16 |
| 2021 | 16 |
| 2022 | 10 |
| 2023 | 10 |
| 2024 | 8 |
| 2025 | 11 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for converting organic waste into methane and other useful products
US-10486995-B2 · Nov 26, 2019 · US
Concentration of wastewater to reduce flow rate, cost, and footprint of treatment system
US-2019135672-A1 · May 9, 2019 · US
Apparatus and Method for Treating Waste Water Containing Ammonium Salts
US-2019062188-A1 · Feb 28, 2019 · US
Treatment of Dissolved Selenium
US-2019047883-A1 · Feb 14, 2019 · US
Pool cleaner canister handle
US-10161153-B2 · Dec 25, 2018 · US
Dewatering whole stillage
US-2018346364-A1 · Dec 6, 2018 · US
Process for the treatment of produced water from chemical enhanced oil recovery
US-2018346356-A1 · Dec 6, 2018 · US
Separation of kinetic hydrate inhibitors from an aqueous solution
US-10131551-B2 · Nov 20, 2018 · US
Pool cleaner impeller subassembly
US-2018328065-A1 · Nov 15, 2018 · US
Pool Cleaner Canister Handle
US-2018328059-A1 · Nov 15, 2018 · US
Concentrating of wastewater to reduce flow rate, cost, and footprint of treatment system
US-10125040-B2 · Nov 13, 2018 · US
Apparatus and Method for Treating Waste Water Containing Ammonium Salts
US-2018305221-A1 · Oct 25, 2018 · US
Star-shape nanoparticle and a method of using thereof to detect arsenic in a solution
US-2018304230-A1 · Oct 25, 2018 · US
Functionalized sio2 microspheres for extracting oil from produced water
US-2018250656-A1 · Sep 6, 2018 · US
Method for Separating Mill Scale from Wastewater
US-2018229155-A1 · Aug 16, 2018 · US
Pool cleaner with cyclonic flow
US-2018155947-A1 · Jun 7, 2018 · US
Elimination of sodium sulfate from biologically treated wastewater
US-9908801-B2 · Mar 6, 2018 · US
Beneficiating Weighting Agents
US-2018037791-A1 · Feb 8, 2018 · US
Pool cleaner power coupling
US-9885196-B2 · Feb 6, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F1/385?
- CPC C02F1/385 is the Cooperative Patent Classification code for “by centrifuging suspensions (centrifuges B04B).”
- How many patents are filed under CPC C02F1/385 (by centrifuging suspensions (centrifuges B04B))?
- Our database includes 147 publications tagged with this CPC code.
- Is patent activity under CPC C02F1/385 growing?
- Publication counts under this code: 8 in 2024 vs 11 in 2025 (latest complete years).