Process for recycling waste mineral material
US-2026062338-A1 · Mar 5, 2026 · US
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by arc discharge or plasma heating
by arc discharge or plasma heating · 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 | C03B5/025 |
| Official title | {by arc discharge or plasma heating} |
| Display label | by arc discharge or plasma heating |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 1 |
| 2021 | 1 |
| 2023 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus and method for melting glass with thermal plasma
US-2023148040-A1 · May 11, 2023 · US
Continuous smelting and fiber spinning process
US-2021188692-A1 · Jun 24, 2021 · US
Method and apparatus for adding thermal energy to a glass melt
US-10167220-B2 · Jan 1, 2019 · US
Melting glass materials using RF plasma
US-10059614-B2 · Aug 28, 2018 · US
Method and apparatus for adding thermal energy to a glass melt
US-2017217811-A1 · Aug 3, 2017 · US
Methods and apparatus for material processing using plasma thermal source
US-2017088453-A1 · Mar 30, 2017 · US
Methods and apparatus for material processing using plasma thermal source
US-9550694-B2 · Jan 24, 2017 · US
Electric glory hole door assembly
US-9487427-B2 · Nov 8, 2016 · US
Melting glass materials using rf plasma
US-2016244352-A1 · Aug 25, 2016 · US
Method and apparatus for adding thermal energy to a glass melt
US-2016200618-A1 · Jul 14, 2016 · US
Method of manufacturing composite crucible and method of manufacturing silicon crystal
US-2015337456-A1 · Nov 26, 2015 · US
Methods and apparatus for material processing using atmospheric thermal plasma reactor
US-2015274566-A1 · Oct 1, 2015 · US
Methods and apparatus for material processing using plasma thermal source
US-2015274567-A1 · Oct 1, 2015 · US
Composite crucible, method of manufacturing the same, and method of manufacturing silicon crystal
US-9133063-B2 · Sep 15, 2015 · US
Melt composition for the production of man-made vitreous fibres
US-9012342-B2 · Apr 21, 2015 · US