Geopolymer precursor preparation
US-2026015288-A1 · Jan 15, 2026 · US
Apparatus ({C22B4/005 takes precedence; } electric heating elements H05B)
Apparatus ({C22B4/005 takes precedence; } electric heating elements H05B) · 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 | C22B4/08 |
| Official title | Apparatus ({C22B4/005 takes precedence; } electric heating elements H05B) |
| Display label | Apparatus ({C22B4/005 takes precedence; } electric heating elements H05B) |
| Total patents | 52 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 2 |
| 2017 | 7 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 10 |
| 2024 | 8 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for extracting a metal ion from an earth material
US-2026014493-A1 · Jan 15, 2026 · US
Lithium isotope enrichment device, multi-stage lithium isotope enrichment device, and lithium isotope enrichment method
US-2025296048-A1 · Sep 25, 2025 · US
Phase change system with modular crucibles and flow control nozzles
US-2025207218-A1 · Jun 26, 2025 · US
Electrolytic smelting system
US-12305245-B2 · May 20, 2025 · US
Collocating a large-scale dissociating reactor near a geothermal energy source for green refinement of critical minerals from brines
US-12221670-B2 · Feb 11, 2025 · US
Systems and methods of thermochemically reducing metallic elements using thermal shock
US-2024309486-A1 · Sep 19, 2024 · US
Collocating a large-scale dissociating reactor near a geothermal energy source for green refinement of critical minerals from brines
US-2024271250-A1 · Aug 15, 2024 · US
Collocating a large-scale dissociating reactor near a geothermal energy source for green refinement of critical minerals from brines
US-2024247338-A1 · Jul 25, 2024 · US
Device for preparing ultra-high-purity zinc based on intelligently-controlled zone melting
US-2024229193-A9 · Jul 11, 2024 · US
Collocating a large-scale dissociating reactor near a geothermal energy source for producing green lithium from brines
US-12012644-B2 · Jun 18, 2024 · US
Optical system and method for metallurgical extraction and refining
US-11981977-B2 · May 14, 2024 · US
Device for preparing ultra-high-purity zinc based on intelligently-controlled zone melting
US-2024132997-A1 · Apr 25, 2024 · US
Treatment of a composition with a plasma
US-2024117464-A1 · Apr 11, 2024 · US
Collocating a large-scale dissociating reactor near a geothermal energy source for producing green lithium from brines
US-2023416875-A1 · Dec 28, 2023 · US
Ultrafast flash joule heating synthesis methods and systems for performing same
US-2023374623-A1 · Nov 23, 2023 · US
Microwave-mechanical fluidization mining system and mining method for metal mines
US-11773720-B2 · Oct 3, 2023 · US
Collocating a large-scale dissociating reactor near a geothermal energy source for producing green lithium from brines
US-2023304129-A1 · Sep 28, 2023 · US
Method for refining one or more critical minerals
US-2023304127-A1 · Sep 28, 2023 · US
Method for refining one or more critical minerals
US-11761057-B1 · Sep 19, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B4/08?
- CPC C22B4/08 is the Cooperative Patent Classification code for “Apparatus ({C22B4/005 takes precedence; } electric heating elements H05B).”
- How many patents are filed under CPC C22B4/08 (Apparatus ({C22B4/005 takes precedence; } electric heating elements H05B))?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC C22B4/08 growing?
- Publication counts under this code: 8 in 2024 vs 4 in 2025 (latest complete years).