Gas purification apparatus and method
US-11931687-B2 · Mar 19, 2024 · US
Removing acid components
Removing acid components · 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 | B01D53/1456 |
| Official title | {Removing acid components} |
| Display label | Removing acid components |
| Total patents | 452 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 37 |
| 2016 | 32 |
| 2017 | 38 |
| 2018 | 39 |
| 2019 | 69 |
| 2020 | 59 |
| 2021 | 52 |
| 2022 | 27 |
| 2023 | 32 |
| 2024 | 34 |
| 2025 | 27 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods and systems for controlling condensate when reducing oxygen content in biogas
US-2024001297-A1 · Jan 4, 2024 · US
Method and apparatus for removing chloride from samples containing volatile organic carbon
US-9499421-B2 · Nov 22, 2016 · US
Removal of acid gases from a fluid flow by means of reduced coabsorption of hydrocarbons and oxygen
US-9498748-B2 · Nov 22, 2016 · US
Energy-saving acid gas capture system and method
US-2016303505-A1 · Oct 20, 2016 · US
Hybrid solvent formulations for total organic sulfur removal and total acidic gas removal
US-2016288046-A1 · Oct 6, 2016 · US
Energy-saving acidic gas capture system and method using condensed water
US-2016263517-A1 · Sep 15, 2016 · US
Method for eliminating acid compounds from a gaseous effluent with an absorbent solution made from bis(amino-3-propyl)ethers
US-9421493-B2 · Aug 23, 2016 · US
Method and apparatus for producing hydrochloric acid
US-2016214861-A1 · Jul 28, 2016 · US
Method and absorber for removal of acid gas from natural gas
US-9381463-B2 · Jul 5, 2016 · US
Method for removing acid gases from a fluid flow containing nitrogen oxides
US-2016166975-A1 · Jun 16, 2016 · US
Removing sulfur contaminants from water using a silicone-based chemical filter
US-2016159666-A1 · Jun 9, 2016 · US
Removing sulfur contaminants from a fluid using a silicone-based chemical filter
US-2016158710-A1 · Jun 9, 2016 · US
Apparatus and method for evaporating waste water and reducing acid gas emissions
US-9352274-B2 · May 31, 2016 · US
Acidic gas absorbing agent, method for removing acidic gas and apparatus for removing acidic gas
US-2016136568-A1 · May 19, 2016 · US
Silicone-based chemical filter and silicone-based chemical bath for removing sulfur contaminants
US-9333454-B2 · May 10, 2016 · US
Blends of amines with piperazine for CO2 capture
US-9321007-B2 · Apr 26, 2016 · US
Separations With Ionic Liquid Solvents
US-2016096784-A1 · Apr 7, 2016 · US
Process for separating off acid gases from a water-comprising fluid stream
US-9295942-B2 · Mar 29, 2016 · US
Absorption and oxidation of NO in ionic liquids
US-9289719-B2 · Mar 22, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D53/1456?
- CPC B01D53/1456 is the Cooperative Patent Classification code for “Removing acid components.”
- How many patents are filed under CPC B01D53/1456 (Removing acid components)?
- Our database includes 452 publications tagged with this CPC code.
- Is patent activity under CPC B01D53/1456 growing?
- Publication counts under this code: 34 in 2024 vs 27 in 2025 (latest complete years).