Method for syngas clean-up of semi-volatile organic compounds with carbonyl sulfide removal
US-10011483-B2 · Jul 3, 2018 · US
Heavy metals or heavy metal compounds
Heavy metals or heavy metal compounds · 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 | B01D2257/60 |
| Official title | Heavy metals or heavy metal compounds |
| Display label | Heavy metals or heavy metal compounds |
| Total patents | 239 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 21 |
| 2017 | 20 |
| 2018 | 32 |
| 2019 | 26 |
| 2020 | 17 |
| 2021 | 21 |
| 2022 | 22 |
| 2023 | 20 |
| 2024 | 25 |
| 2025 | 17 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for capturing a heavy metal contained in a moist gas, integrating a heat pump to heat the gas introduced into a capture mass
US-9889404-B2 · Feb 13, 2018 · US
Uranium hexafluoride off-gas treatment system and method
US-2018030576-A1 · Feb 1, 2018 · US
System for syngas clean-up of semi-volatile organic compounds
US-9845240-B2 · Dec 19, 2017 · US
Catalyst manufacturing method
US-9839907-B2 · Dec 12, 2017 · US
System for syngas clean-up
US-9783417-B2 · Oct 10, 2017 · US
Pushable multi-fiber connector
US-9772457-B2 · Sep 26, 2017 · US
High temperature layered mixed-metal oxide materials with enhanced stability
US-2017266642-A1 · Sep 21, 2017 · US
Gas purification filter unit
US-9764268-B2 · Sep 19, 2017 · US
Apparatus and method for evaporating waste water and reducing acid gas emissions
US-9724638-B2 · Aug 8, 2017 · US
Plasma abatement of compounds containing heavy atoms
US-2017216767-A1 · Aug 3, 2017 · US
Method for cleaning process off- or engine exhaust gas
US-2017216771-A1 · Aug 3, 2017 · US
Method and system for the removal of particulate matter and heavy metals from engine exhaust gas
US-2017211441-A1 · Jul 27, 2017 · US
Method of capturing or trapping zinc using zinc getter materials
US-9700829-B1 · Jul 11, 2017 · US
Catalyst manufacturing method
US-2017189897-A1 · Jul 6, 2017 · US
Method for syngas clean-up of semi-volatile organic compounds with metal removal
US-2017166446-A1 · Jun 15, 2017 · US
Method for syngas clean-up of semi-volatile organic compounds with solids removal
US-2017152139-A1 · Jun 1, 2017 · US
Method for syngas clean-up of semi-volatile organic compounds with carbonyl sulfide removal
US-2017152140-A1 · Jun 1, 2017 · US
Plasma abatement of compounds containing heavy atoms
US-9649592-B2 · May 16, 2017 · US
Stabilization of at least one heavy metal contained in a sodic fly ash using a water-soluble source of silicate and a material containing calcium and/or magnesium
US-2017100618-A1 · Apr 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2257/60?
- CPC B01D2257/60 is the Cooperative Patent Classification code for “Heavy metals or heavy metal compounds.”
- How many patents are filed under CPC B01D2257/60 (Heavy metals or heavy metal compounds)?
- Our database includes 239 publications tagged with this CPC code.
- Is patent activity under CPC B01D2257/60 growing?
- Publication counts under this code: 25 in 2024 vs 17 in 2025 (latest complete years).