Systems and methods for producing silicon slim rods
US-9527158-B2 · Dec 27, 2016 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C01B33/035 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 296 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 30 |
| 2016 | 35 |
| 2017 | 37 |
| 2018 | 23 |
| 2019 | 33 |
| 2020 | 37 |
| 2021 | 15 |
| 2022 | 33 |
| 2023 | 19 |
| 2024 | 13 |
| 2025 | 20 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polycrystalline germanium-alloyed silicon and a method for the production thereof
US-2016369393-A1 · Dec 22, 2016 · US
Method for producing granular polysilicon
US-2016326001-A1 · Nov 10, 2016 · US
Device for receiving and transporting a silicon rod, and method for producing polycrystalline silicon
US-2016325945-A1 · Nov 10, 2016 · US
Conical graphite electrode with raised edge
US-9487873-B2 · Nov 8, 2016 · US
Polycrystalline silicon rod and process for production thereof
US-9481578-B2 · Nov 1, 2016 · US
Method for manufacturing polysilicon
US-9469544-B2 · Oct 18, 2016 · US
Polycrystalline silicon deposition method
US-2016297684-A1 · Oct 13, 2016 · US
Apparatus for manufacturing polysilicon
US-2016280556-A1 · Sep 29, 2016 · US
Process for producing polycrystalline silicon
US-2016273099-A1 · Sep 22, 2016 · US
Polycrystalline silicon rod and method for producing polysilicon
US-9446957-B2 · Sep 20, 2016 · US
Method for producing polycrystalline silicon
US-2016264425-A1 · Sep 15, 2016 · US
Polycrystalline silicon manufacturing apparatus and polycrystalline silicon manufacturing method
US-9437429-B2 · Sep 6, 2016 · US
Process for producing polycrystalline silicon
US-2016214864-A1 · Jul 28, 2016 · US
Production method for polycrystalline silicon, and reactor for polycrystalline silicon production
US-9394606-B2 · Jul 19, 2016 · US
Rod-type polysilicon having improved breaking properties
US-9382617-B2 · Jul 5, 2016 · US
Process for producing polycrystalline silicon
US-2016167971-A1 · Jun 16, 2016 · US
Method for producing high-purity polycrystalline silicon
US-9355918-B2 · May 31, 2016 · US
Method and device for producing classified high-purity polycrystalline silicon fragments
US-9340901-B2 · May 17, 2016 · US
Reactor for producing polycrystalline silicon and method for removing a silicon-containing layer on a component of such a reactor
US-2016115591-A1 · Apr 28, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B33/035?
- CPC C01B33/035 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01B33/035 (Chemistry & Metallurgy)?
- Our database includes 296 publications tagged with this CPC code.
- Is patent activity under CPC C01B33/035 growing?
- Publication counts under this code: 13 in 2024 vs 20 in 2025 (latest complete years).