High-molecular-weight polysilane and method for producing same
US-10450419-B2 · Oct 22, 2019 · US
Hydrides of silicon
Hydrides of silicon · 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 | C01B33/04 |
| Official title | Hydrides of silicon |
| Display label | Hydrides of silicon |
| Total patents | 90 |
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 | 13 |
| 2016 | 15 |
| 2017 | 17 |
| 2018 | 8 |
| 2019 | 11 |
| 2020 | 13 |
| 2021 | 1 |
| 2022 | 5 |
| 2023 | 2 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of producing silicon hydride oxide-containing solvent
US-10414661-B2 · Sep 17, 2019 · US
Method for producing oligosilane and apparatus for producing oligosilane
US-2019276321-A1 · Sep 12, 2019 · US
Method for producing oligosilane
US-2019256361-A1 · Aug 22, 2019 · US
Doped hydridosilane compositions, and method for producing same
US-10370392-B2 · Aug 6, 2019 · US
Targeted production of 2,2,3,3-tetrasilyl tetrasilane
US-2019127229-A1 · May 2, 2019 · US
Method for producing cyclic silane using concentration method
US-10202283-B2 · Feb 12, 2019 · US
Method of making aluminum-free neopentasilane
US-2018370807-A1 · Dec 27, 2018 · US
MSix-containing silicon material (M is at least one element selected from group 3 to 9 elements. ⅓<=x<=3) and method for producing same
US-10135067-B2 · Nov 20, 2018 · US
Silicon material and method for producing the same
US-2018179072-A1 · Jun 28, 2018 · US
Azocarbonyl-functionalized silanes
US-9981995-B2 · May 29, 2018 · US
Process and apparatus for preparation of polysilanes
US-9975103-B2 · May 22, 2018 · US
Method of making 2,2,4,4-tetrasilylpentasilane
US-9926203-B2 · Mar 27, 2018 · US
2,2,4,4-Tetrasilylpentasilane And Its Compositions, Methods And Uses
US-2018066140-A1 · Mar 8, 2018 · US
Apparatus for the preparation of silanes
US-9862613-B2 · Jan 9, 2018 · US
Polymerization Inhibitor for Silane
US-2017313591-A1 · Nov 2, 2017 · US
Method of Producing Silicon Hydride Oxide-Containing Organic Solvent
US-2017313592-A1 · Nov 2, 2017 · US
MSix-CONTAINING SILICON MATERIAL (M IS AT LEAST ONE ELEMENT SELECTED FROM GROUP 3 TO 9 ELEMENTS. 1/3<=x<=3) AND METHOD FOR PRODUCING SAME
US-2017309901-A1 · Oct 26, 2017 · US
Method for producing oligosilane
US-2017275171-A1 · Sep 28, 2017 · US
Cyclohexasilane
US-9764961-B2 · Sep 19, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B33/04?
- CPC C01B33/04 is the Cooperative Patent Classification code for “Hydrides of silicon.”
- How many patents are filed under CPC C01B33/04 (Hydrides of silicon)?
- Our database includes 90 publications tagged with this CPC code.
- Is patent activity under CPC C01B33/04 growing?
- Publication counts under this code: 2 in 2023 vs 4 in 2025 (latest complete years).