Rotary drive apparatus
US-2018348504-A1 · Dec 6, 2018 · US
Additional mass for increasing inertia, e.g. flywheels
Additional mass for increasing inertia, e.g. flywheels · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02K7/02 |
| Official title | Additional mass for increasing inertia, e.g. flywheels |
| Display label | Additional mass for increasing inertia, e.g. flywheels |
| Total patents | 246 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 19 |
| 2017 | 25 |
| 2018 | 21 |
| 2019 | 40 |
| 2020 | 33 |
| 2021 | 23 |
| 2022 | 20 |
| 2023 | 13 |
| 2024 | 23 |
| 2025 | 15 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotary drive apparatus
US-2018348505-A1 · Dec 6, 2018 · US
Staked rotor core for retaining magnets
US-10145450-B2 · Dec 4, 2018 · US
Motor with encoder flywheel
US-10100902-B2 · Oct 16, 2018 · US
Method of reducing sound from light fixture with stepper motors
US-2018234001-A1 · Aug 16, 2018 · US
Double resonance vibration motor
US-10008894-B2 · Jun 26, 2018 · US
Motor
US-2018054102-A1 · Feb 22, 2018 · US
Aerosol delivery device including an electrical generator assembly
US-2017360091-A1 · Dec 21, 2017 · US
Open-Core Flywheel Architecture
US-2017358969-A1 · Dec 14, 2017 · US
Traction motor assembly with gear-interconnected wheel and output shaft
US-2017321783-A1 · Nov 9, 2017 · US
Crankshaft starter generator and housing for a crankshaft starter generator
US-2017279327-A1 · Sep 28, 2017 · US
Generator set having coupling member between flywheel and generator
US-9774230-B2 · Sep 26, 2017 · US
Open-Core Flywheel Architecture
US-2017271944-A1 · Sep 21, 2017 · US
Traction motor assembly with gear-interconnected wheel and output shaft
US-9752652-B2 · Sep 5, 2017 · US
Rotary electric device for power working machine
US-9735653-B2 · Aug 15, 2017 · US
Open-core flywheel architecture
US-9729025-B2 · Aug 8, 2017 · US
Power transmission apparatus with rotating electrical machine
US-2017218910-A1 · Aug 3, 2017 · US
Drivetrain module for a motor vehicle
US-2017211659-A1 · Jul 27, 2017 · US
Crankshaft starter generator and housing for a crankshaft starter generator
US-9716415-B2 · Jul 25, 2017 · US
Dual oscillating motor and vibration reduction methods in a personal care appliance
US-2017194849-A1 · Jul 6, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H02K7/02?
- CPC H02K7/02 is the Cooperative Patent Classification code for “Additional mass for increasing inertia, e.g. flywheels.”
- How many patents are filed under CPC H02K7/02 (Additional mass for increasing inertia, e.g. flywheels)?
- Our database includes 246 publications tagged with this CPC code.
- Is patent activity under CPC H02K7/02 growing?
- Publication counts under this code: 23 in 2024 vs 15 in 2025 (latest complete years).