Process for simultaneous removal of hydrogen sulfide and heavy metals
US-12415726-B2 · Sep 16, 2025 · US
from elemental sulfur and hydrogen
from elemental sulfur and hydrogen · 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 | C01B17/162 |
| Official title | {from elemental sulfur and hydrogen} |
| Display label | from elemental sulfur and hydrogen |
| Total patents | 32 |
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 | 5 |
| 2017 | 6 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 4 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Integrated processes utilizing water electrolysis and oxidative dehydrogenation of ethane
US-2025066274-A1 · Feb 27, 2025 · US
Process for simultaneous removal of hydrogen sulfide and heavy metals
US-2024124305-A1 · Apr 18, 2024 · US
Hydrogen sulfide production method and sulfur recovery method
US-11459236-B2 · Oct 4, 2022 · US
Thermal stage and reduction absorption sulfur recovery process
US-11453588-B2 · Sep 27, 2022 · US
Processes useful in the manufacture of cyclododecasulfur
US-2022169506-A1 · Jun 2, 2022 · US
Synthesis of Ammonia Using Cycle-Generated Hydrogen Sulfide
US-2022135413-A1 · May 5, 2022 · US
Hydrogen sulfide production method and sulfur recovery method
US-2021053828-A1 · Feb 25, 2021 · US
Processes for removing polysulfanes and elemental sulfur from hydrogen sulfide
US-10773958-B2 · Sep 15, 2020 · US
Thermal stage and reduction absorption sulfur recovery process
US-2020277186-A1 · Sep 3, 2020 · US
Two-stage adsorption process for Claus tail gas treatment
US-10662061-B1 · May 26, 2020 · US
Hydrogen sulfide production process and related reactor vessels
US-10336614-B2 · Jul 2, 2019 · US
Hydrogen Sulfide Production Process and Related Reactor Vessels
US-2018319663-A1 · Nov 8, 2018 · US
Hydrogen sulfide production process and related reactor vessels
US-10040684-B2 · Aug 7, 2018 · US
Configurations, systems, and methods for recovery of elemental sulfur using a solvent
US-9821267-B2 · Nov 21, 2017 · US
Thermal stage and reduction absorption sulfur recovery process
US-2017173527-A1 · Jun 22, 2017 · US
Hydrogen Sulfide Production Process and Related Reactor Vessels
US-2017166447-A1 · Jun 15, 2017 · US
Reactor and process for preparing hydrogen sulphide
US-9649615-B2 · May 16, 2017 · US
Reactor and process for preparing hydrogen sulphide
US-9630843-B2 · Apr 25, 2017 · US
Plant for manufacturing hydrogen sulfide gas and method for exhausting hydrogen sulfide gas
US-9550674-B2 · Jan 24, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B17/162?
- CPC C01B17/162 is the Cooperative Patent Classification code for “from elemental sulfur and hydrogen.”
- How many patents are filed under CPC C01B17/162 (from elemental sulfur and hydrogen)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC C01B17/162 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).