Bipolar all solid-state battery
US-2018309163-A1 · Oct 25, 2018 · US
Steels
Steels · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01M4/669 |
| Official title | {Steels} |
| Display label | Steels |
| Total patents | 253 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 16 |
| 2017 | 18 |
| 2018 | 15 |
| 2019 | 18 |
| 2020 | 20 |
| 2021 | 22 |
| 2022 | 30 |
| 2023 | 28 |
| 2024 | 35 |
| 2025 | 28 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of forming carbon-silicon composite material on a current collector
US-2018287129-A1 · Oct 4, 2018 · US
Non-aqueous secondary battery electrode, method for manufacturing same, and non-aqueous secondary battery
US-2018287133-A1 · Oct 4, 2018 · US
Battery
US-10056643-B2 · Aug 21, 2018 · US
Battery
US-2018226619-A1 · Aug 9, 2018 · US
Sealing body of tube-shaped battery and tube-shaped battery
US-2018205044-A1 · Jul 19, 2018 · US
Mixed material with high expansion rate for producing porous metallic sintered body
US-2018159115-A1 · Jun 7, 2018 · US
Anode for cable-type secondary battery and cable-type secondary battery comprising the same
US-9991549-B2 · Jun 5, 2018 · US
Battery
US-9966577-B2 · May 8, 2018 · US
Cylindrical alkaline secondry battery
US-2018069268-A1 · Mar 8, 2018 · US
Method for forming negative electrode and method for manufacturing lithium secondary battery
US-2017279239-A1 · Sep 28, 2017 · US
Cable-type secondary battery
US-9755266-B2 · Sep 5, 2017 · US
Anode for secondary battery and secondary battery having the same
US-9755265-B2 · Sep 5, 2017 · US
Battery
US-2017244102-A1 · Aug 24, 2017 · US
Ionic gel electrolyte, energy storage devices, and methods of manufacture thereof
US-9742030-B2 · Aug 22, 2017 · US
Vertical carbon nanotube and lithium ion battery chemistries, articles, architectures and manufacture
US-2017214083-A1 · Jul 27, 2017 · US
Battery
US-2017179517-A1 · Jun 22, 2017 · US
Power storage device, method for manufacturing power storage device, and electronic device
US-2017170521-A1 · Jun 15, 2017 · US
Battery
US-9680154-B2 · Jun 13, 2017 · US
Method for forming negative electrode and method for manufacturing lithium secondary battery
US-9680272-B2 · Jun 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01M4/669?
- CPC H01M4/669 is the Cooperative Patent Classification code for “Steels.”
- How many patents are filed under CPC H01M4/669 (Steels)?
- Our database includes 253 publications tagged with this CPC code.
- Is patent activity under CPC H01M4/669 growing?
- Publication counts under this code: 35 in 2024 vs 28 in 2025 (latest complete years).