Multi-dimension, multi-mode chromatography methods for producing high purity, high yield lithium, cobalt, nickel, and manganese salts from waste lithium-ion batteries and other feedstocks
US-2025219178-A1 · Jul 3, 2025 · US
for obtaining a solution having a fixed pH
for obtaining a solution having a fixed pH · 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 | B01J47/15 |
| Official title | for obtaining a solution having a fixed pH |
| Display label | for obtaining a solution having a fixed pH |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 8 |
| 2019 | 2 |
| 2020 | 2 |
| 2022 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for Preparation of Liquid Mixtures
US-2022283062-A1 · Sep 8, 2022 · US
Method for preparation of liquid mixtures
US-11371919-B2 · Jun 28, 2022 · US
Method for Preparation of Liquid Mixtures
US-2020240884-A1 · Jul 30, 2020 · US
Method for preparation of liquid mixtures
US-10605710-B2 · Mar 31, 2020 · US
Onshore lithium-recovering apparatus for lithium ion adsorption and desorption process and lithium-recovering method using the same
US-10478751-B2 · Nov 19, 2019 · US
Method for using a softened acidic water source
US-10183288-B2 · Jan 22, 2019 · US
Urea sulfate and sodium chloride blend for regeneration of cation exchange resins
US-10092898-B2 · Oct 9, 2018 · US
Onshore lithium-recovering apparatus for lithium ion adsorption and desorption process and lithium-recovering method using the same
US-2018280831-A1 · Oct 4, 2018 · US
Integrated acid regeneration of ion exchange resins for industrial applications
US-10058858-B2 · Aug 28, 2018 · US
Acid regeneration of ion exchange resins for industrial applications
US-10052625-B2 · Aug 21, 2018 · US
System employing ion exchange resin regenerated by acid
US-2018222774-A1 · Aug 9, 2018 · US
System employing ion exchange resin regenerated by acid
US-9963361-B2 · May 8, 2018 · US
Acid regeneration of ion exchange resins for industrial applications
US-9919935-B2 · Mar 20, 2018 · US
Urea sulfate and sodium chloride blend for regeneration of cation exchange resins
US-2018008974-A1 · Jan 11, 2018 · US
Ion-exchange process
US-2017296971-A1 · Oct 19, 2017 · US
Urea sulfate and sodium chloride blend for regeneration of cation exchange resins
US-9764321-B2 · Sep 19, 2017 · US
Integrated acid regeneration of ion exchange resins for industrial applications
US-2017144145-A1 · May 25, 2017 · US
Urea sulfate and sodium chloride blend for regeneration of cation exchange resins
US-2017136451-A1 · May 18, 2017 · US
Urea sulfate and sodium chloride blend for regeneration of cation exchange resins
US-2017088442-A1 · Mar 30, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J47/15?
- CPC B01J47/15 is the Cooperative Patent Classification code for “for obtaining a solution having a fixed pH.”
- How many patents are filed under CPC B01J47/15 (for obtaining a solution having a fixed pH)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC B01J47/15 growing?
- Publication counts under this code: 2 in 2022 vs 1 in 2025 (latest complete years).