Stator bar mold insert
US-2018375412-A1 · Dec 27, 2018 · US
for high voltage, e.g. affording protection against corona discharges
for high voltage, e.g. affording protection against corona discharges · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K3/40 |
| Official title | for high voltage, e.g. affording protection against corona discharges |
| Display label | for high voltage, e.g. affording protection against corona discharges |
| Total patents | 204 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 12 |
| 2017 | 14 |
| 2018 | 21 |
| 2019 | 21 |
| 2020 | 35 |
| 2021 | 20 |
| 2022 | 23 |
| 2023 | 10 |
| 2024 | 19 |
| 2025 | 10 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Motor having interphase insulation sheet mounted thereon
US-10158266-B2 · Dec 18, 2018 · US
Magnetic assembly
US-2018350511-A1 · Dec 6, 2018 · US
Resistively graded insulation for stators
US-2018323688-A1 · Nov 8, 2018 · US
Systems and methods for a conductor disposed within an insulator
US-2018301244-A1 · Oct 18, 2018 · US
Method for fabrication of a conductor bar
US-10090740-B2 · Oct 2, 2018 · US
Solid Insulation Material
US-2018215960-A1 · Aug 2, 2018 · US
Rotating electrical machine coil
US-2018198345-A1 · Jul 12, 2018 · US
Resistance Covering For A Corona Shield Of An Electric Machine
US-2018145554-A1 · May 24, 2018 · US
Electrical insulation systems and insulated components for electrical machine
US-2018138772-A1 · May 17, 2018 · US
Method of wrapping mica paper on an electrical conductor and mica paper tape suitable for same
US-9972419-B2 · May 15, 2018 · US
Plasma treatment for multilayer adhesive bonding element
US-2018112107-A1 · Apr 26, 2018 · US
Material for insulation system, insulation system, external corona shield and an electric machine
US-2018068757-A1 · Mar 8, 2018 · US
Rotating electrical machine coil
US-2018054104-A1 · Feb 22, 2018 · US
Impregnating resin for an electrical insulation body, electrical insulation body, and method for producing the electrical insulation body
US-9884950-B2 · Feb 6, 2018 · US
Insulating Tapes For A Coil And Wrapping Tape Insulation Systems For Electric Machines
US-2018022897-A1 · Jan 25, 2018 · US
Method and apparatus for forming corona shielding
US-9843246-B2 · Dec 12, 2017 · US
Air pressure adjuster for rotary electric machine
US-2017346359-A1 · Nov 30, 2017 · US
Insulation System For Electrical Machines
US-2017310184-A1 · Oct 26, 2017 · US
Corona Shielding System For An Electrical Machine
US-2017294817-A1 · Oct 12, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K3/40?
- CPC H02K3/40 is the Cooperative Patent Classification code for “for high voltage, e.g. affording protection against corona discharges.”
- How many patents are filed under CPC H02K3/40 (for high voltage, e.g. affording protection against corona discharges)?
- Our database includes 204 publications tagged with this CPC code.
- Is patent activity under CPC H02K3/40 growing?
- Publication counts under this code: 19 in 2024 vs 10 in 2025 (latest complete years).