Polycrystalline silicon manufacturing apparatus
US-2020263304-A1 · Aug 20, 2020 · US
by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent
by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent · 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 | C01B33/03 |
| Official title | by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent |
| Display label | by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent |
| Total patents | 99 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 16 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 13 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 12 |
| 2023 | 9 |
| 2024 | 3 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Submicron Sized Silicon Powder with Low Oxygen Content
US-2020266429-A1 · Aug 20, 2020 · US
Ultra-high temperature precipitation process for manufacturing polysilicon
US-10683209-B2 · Jun 16, 2020 · US
Process for preparing polycrystalline silicon
US-2020131043-A1 · Apr 30, 2020 · US
Fluidized bed reactor and process for producing polycrystalline silicon granules
US-10632438-B2 · Apr 28, 2020 · US
Process for operating a fluidized bed reactor
US-10526206-B2 · Jan 7, 2020 · US
Gas distribution unit for fluidized bed reactor system, fluidized bed reactor system having the gas distribution unit, and method for preparing granular polycrystalline silicon using the fluidized bed reactor system
US-10518237-B2 · Dec 31, 2019 · US
Method for producing polycrystalline silicon
US-2019375642-A1 · Dec 12, 2019 · US
Polycrystalline silicon rod
US-2019367374-A1 · Dec 5, 2019 · US
Process for producing of polycrystalline silicon
US-10475646-B2 · Nov 12, 2019 · US
Production of polycrystalline silicon in substantially closed-loop processes that involve disproportionation operations
US-10407309-B2 · Sep 10, 2019 · US
Method for stabilizing chlorosilane polymer
US-2019256362-A1 · Aug 22, 2019 · US
Poly-silicon manufacturing apparatus and method using high-efficiency hybrid horizontal reactor
US-10322938-B2 · Jun 18, 2019 · US
Submicron Sized Silicon Powder with Low Oxygen Content
US-2019109326-A1 · Apr 11, 2019 · US
Method of producing metal powder
US-2019076931-A1 · Mar 14, 2019 · US
Process and apparatus for production of granular polycrystalline silicon
US-2019055130-A1 · Feb 21, 2019 · US
Gas decomposition reactor feedback control using raman spectrometry
US-10207236-B2 · Feb 19, 2019 · US
Method for depositing an in situ coating onto thermally and chemically loaded components of a fluidized bed reactor for producing high-purity polysilicon
US-2019032203-A1 · Jan 31, 2019 · US
Submicron sized silicon powder with low oxygen content
US-10181600-B2 · Jan 15, 2019 · US
Method for producing granular polysilicon
US-10118830-B2 · Nov 6, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B33/03?
- CPC C01B33/03 is the Cooperative Patent Classification code for “by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent.”
- How many patents are filed under CPC C01B33/03 (by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent)?
- Our database includes 99 publications tagged with this CPC code.
- Is patent activity under CPC C01B33/03 growing?
- Publication counts under this code: 3 in 2024 vs 6 in 2025 (latest complete years).