Sodium iron(II)-hexacyanoferrate(II) battery electrode
US-9531003-B2 · Dec 27, 2016 · US
Preparation (chemical coating from the vapour phase C23C16/00)
Preparation (chemical coating from the vapour phase C23C16/00) · 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 | C01B33/021 |
| Official title | Preparation (chemical coating from the vapour phase C23C16/00) |
| Display label | Preparation (chemical coating from the vapour phase C23C16/00) |
| Total patents | 366 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 29 |
| 2016 | 31 |
| 2017 | 43 |
| 2018 | 25 |
| 2019 | 28 |
| 2020 | 30 |
| 2021 | 27 |
| 2022 | 34 |
| 2023 | 32 |
| 2024 | 46 |
| 2025 | 32 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Production process for nanometer-size silicon material
US-9527748-B2 · Dec 27, 2016 · US
Apparatus for producing silicon nanoparticle using inductive coupled plasma
US-2016362302-A1 · Dec 15, 2016 · US
Nanostructured silicon with useful thermoelectric properties
US-2016359096-A1 · Dec 8, 2016 · US
Sodium Iron(II)-Hexacyanoferrate(II) Battery Electrode
US-2016336588-A1 · Nov 17, 2016 · US
Bis(trimethylsilyl) six-membered ring systems and related compounds as reducing agents for forming layers on a substrate
US-2016289250-A1 · Oct 6, 2016 · US
Process for mass-producing silicon nanowires and silicon nanowire-graphene hybrid particulates
US-2016285084-A1 · Sep 29, 2016 · US
Process for producing silicon nanowires directly from silicon particles
US-2016285083-A1 · Sep 29, 2016 · US
Method for depositing silicon nanocrystals in hollow fibers
US-9452446-B2 · Sep 27, 2016 · US
Cyanometallate cathode battery and method for fabrication
US-9455431-B2 · Sep 27, 2016 · US
Sodium iron(II)-hexacyanoferrate(II) battery electrode and synthesis method
US-9450224-B2 · Sep 20, 2016 · US
Crucible for solidifying a silicon ingot
US-9428844-B2 · Aug 30, 2016 · US
Rapid reduction of sodium occupancy in type II silicon clathrate by chemical etching
US-9416013-B2 · Aug 16, 2016 · US
Substrate for solidifying a silicon ingot
US-2016230305-A1 · Aug 11, 2016 · US
Substrate with low-permeability coating for the solidification of silicon
US-2016222542-A1 · Aug 4, 2016 · US
Metal cyanometallate electrode with shield structure
US-9406919-B2 · Aug 2, 2016 · US
Polycrystalline silicon fragments and process for comminuting polycrystalline silicon rods
US-2016201223-A1 · Jul 14, 2016 · US
Methods for depositing films with organoaminodisilane precursors
US-2016203975-A1 · Jul 14, 2016 · US
Negative active material, method of preparing the same, and rechargeable lithium battery including the same
US-9391314-B2 · Jul 12, 2016 · US
Method for manufacturing polycrystalline silicon ingot, and polycrystalline silicon ingot
US-9388507-B2 · Jul 12, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B33/021?
- CPC C01B33/021 is the Cooperative Patent Classification code for “Preparation (chemical coating from the vapour phase C23C16/00).”
- How many patents are filed under CPC C01B33/021 (Preparation (chemical coating from the vapour phase C23C16/00))?
- Our database includes 366 publications tagged with this CPC code.
- Is patent activity under CPC C01B33/021 growing?
- Publication counts under this code: 46 in 2024 vs 32 in 2025 (latest complete years).