Method for extracting epsilon-polylysine and its hydrochloride salt from fermentation broth
US-2018127462-A1 · May 10, 2018 · US
Specific process operations in the permeate stream
Specific process operations in the permeate stream · 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 | B01D2311/06 |
| Official title | Specific process operations in the permeate stream |
| Display label | Specific process operations in the permeate stream |
| Total patents | 415 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 21 |
| 2017 | 23 |
| 2018 | 33 |
| 2019 | 36 |
| 2020 | 45 |
| 2021 | 46 |
| 2022 | 50 |
| 2023 | 45 |
| 2024 | 42 |
| 2025 | 52 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water recovery method
US-9919936-B2 · Mar 20, 2018 · US
Water treatment apparatus
US-2017368503-A1 · Dec 28, 2017 · US
Desalination apparatus
US-2017354930-A1 · Dec 14, 2017 · US
Cross current staged reverse osmosis
US-2017349465-A1 · Dec 7, 2017 · US
Cross current staged reverse osmosis
US-2017349467-A1 · Dec 7, 2017 · US
Water purification system
US-2017349454-A1 · Dec 7, 2017 · US
Cross current staged reverse osmosis
US-2017349466-A1 · Dec 7, 2017 · US
Hyperfiltration system suitable for household use
US-9795922-B2 · Oct 24, 2017 · US
Ultrapure water producing method
US-2017267550-A1 · Sep 21, 2017 · US
System and method for organic solvent purification
US-9765024-B2 · Sep 19, 2017 · US
Solvent Separation System and Method
US-2017259210-A1 · Sep 14, 2017 · US
Subsea Deoxygenation In A Water Injection Process Plant
US-2017253506-A1 · Sep 7, 2017 · US
Inline diafiltration with multi-channel pump
US-2017225123-A1 · Aug 10, 2017 · US
Sea water reverse osmosis system to reduce concentrate volume prior to disposal
US-2017203979-A1 · Jul 20, 2017 · US
Single-use manifolds for automated, aseptic handling of solutions in bioprocessing applications
US-9700844-B2 · Jul 11, 2017 · US
Reverse osmosis water filtration device with water storage function
US-2017182461-A1 · Jun 29, 2017 · US
Membrane Distillation Apparatus and Hydrophobic Porous Membrane
US-2017173536-A1 · Jun 22, 2017 · US
System and method for organic solvent purification
US-2017158635-A1 · Jun 8, 2017 · US
Process control systems and methods for use with filters and filtration processes
US-2017157566-A1 · Jun 8, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2311/06?
- CPC B01D2311/06 is the Cooperative Patent Classification code for “Specific process operations in the permeate stream.”
- How many patents are filed under CPC B01D2311/06 (Specific process operations in the permeate stream)?
- Our database includes 415 publications tagged with this CPC code.
- Is patent activity under CPC B01D2311/06 growing?
- Publication counts under this code: 42 in 2024 vs 52 in 2025 (latest complete years).