Method for cleaning sulfurous corrosive process gases
US-2022203300-A1 · Jun 30, 2022 · US
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by adsorption
by adsorption · 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 | C01B7/0718 |
| Official title | {by adsorption} |
| Display label | by adsorption |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 2 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydrogen chloride mixture, method for producing the same, and filling container
US-2020354217-A1 · Nov 12, 2020 · US
Purification process
US-10722833-B2 · Jul 28, 2020 · US
Method and device for regeneration of hydrochloric acid
US-10494259-B2 · Dec 3, 2019 · US
Purification process
US-10252211-B2 · Apr 9, 2019 · US
Process for the Recovery of Hydrochloric Acid
US-2019092636-A1 · Mar 28, 2019 · US
Method for purifying contaminated gaseous hydrogen chloride
US-10179735-B2 · Jan 15, 2019 · US
Purification Process
US-2019009206-A1 · Jan 10, 2019 · US
Hydrogen chloride mixture, method for producing the same, and filling container
US-2018354790-A1 · Dec 13, 2018 · US
Method for purifying contaminated gaseous hydrogen chloride
US-2018016141-A1 · Jan 18, 2018 · US
Hydrochloric acid purification process
US-9828314-B2 · Nov 28, 2017 · US
Hydrochloric acid purification process
US-2017158586-A1 · Jun 8, 2017 · US
Method And Device For Regenerating Hydrochloric Acid
US-2016244330-A1 · Aug 25, 2016 · US
Method and apparatus for producing hydrochloric acid
US-2016214861-A1 · Jul 28, 2016 · US
A Process For The Removal Of Metal Contaminants From Fluids
US-2016130143-A1 · May 12, 2016 · US