Porous piezoelectric material with dense surface, and associated methods and devices
US-10147870-B2 · Dec 4, 2018 · US
Electricity
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01L41/45 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 172 |
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 | 9 |
| 2016 | 17 |
| 2017 | 21 |
| 2018 | 20 |
| 2019 | 26 |
| 2020 | 18 |
| 2021 | 28 |
| 2022 | 24 |
| 2023 | 8 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for making an electroactive device fabricated with a nanotube film electrode
US-10124569-B2 · Nov 13, 2018 · US
Display device and laminated optical film
US-10126473-B2 · Nov 13, 2018 · US
Power generator, manufacturing method, and electronic device
US-2018323730-A1 · Nov 8, 2018 · US
Elongated plate-form piezoelectric body and production method therefor, layered body and production method therefor, fabric, garment, and biological information acquisition device
US-2018315917-A1 · Nov 1, 2018 · US
Piezoelectric device
US-10056542-B2 · Aug 21, 2018 · US
Ferroelectric polymers from dehydrofluorinated pvdf
US-2018230249-A1 · Aug 16, 2018 · US
Actuator based on carbon nanotubes and actuating system using the same
US-2018100490-A1 · Apr 12, 2018 · US
Stretched laminated film for use in piezoelectric polymer material, and manufacturing method thereof
US-9937688-B2 · Apr 10, 2018 · US
Controllable polymer actuator
US-9891429-B2 · Feb 13, 2018 · US
Flexible compact nanogenerators based on mechanoradical-forming porous polymer films
US-2018040806-A1 · Feb 8, 2018 · US
Polymeric piezoelectric film and manufacturing method thereof
US-2018022895-A1 · Jan 25, 2018 · US
Method of fabricating piezoelectric energy harvesting device
US-9876161-B2 · Jan 23, 2018 · US
Articles Produced from VDF-co-(TFE or TrFE) Polymers
US-2017349724-A1 · Dec 7, 2017 · US
Dielectric electroactive polymer comprising an elastomeric film in the form of a gel
US-2017352798-A1 · Dec 7, 2017 · US
Porous piezoelectric material with dense surface, and associated methods and devices
US-2017317269-A1 · Nov 2, 2017 · US
Stretch frame for stretching process
US-9761790-B2 · Sep 12, 2017 · US
Silk-based piezoelectric materials
US-9761789-B2 · Sep 12, 2017 · US
Polymeric piezoelectric material, layered body, method of manufacturing polymeric piezoelectric material, and method of manufacturing layered body
US-2017250336-A1 · Aug 31, 2017 · US
Polymeric piezoelectric film
US-2017218117-A1 · Aug 3, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01L41/45?
- CPC H01L41/45 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01L41/45 (Electricity)?
- Our database includes 172 publications tagged with this CPC code.
- Is patent activity under CPC H01L41/45 growing?
- Publication counts under this code: 8 in 2023 vs 1 in 2024 (latest complete years).