Steering device
US-2024286670-A1 · Aug 29, 2024 · US
Worm gears
Worm gears · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B62D5/0454 |
| Official title | {Worm gears} |
| Display label | Worm gears |
| Total patents | 376 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 19 |
| 2017 | 21 |
| 2018 | 38 |
| 2019 | 30 |
| 2020 | 44 |
| 2021 | 34 |
| 2022 | 49 |
| 2023 | 46 |
| 2024 | 44 |
| 2025 | 29 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Worm wheel of reduction gear for use in electric power steering
US-10066726-B2 · Sep 4, 2018 · US
Motor driven power steering system
US-9969423-B2 · May 15, 2018 · US
Motor-driven power steering system
US-2018119788-A1 · May 3, 2018 · US
Steering apparatus for vehicle
US-2018111643-A1 · Apr 26, 2018 · US
Independent steering mechanism of controllable hydraulic locking type for left and right wheels
US-2018057044-A1 · Mar 1, 2018 · US
Steering assist device
US-9896128-B2 · Feb 20, 2018 · US
Rotational angle detection apparatus and power steering apparatus
US-2017349211-A1 · Dec 7, 2017 · US
Speed reducer for vehicle
US-2017335943-A1 · Nov 23, 2017 · US
Electric power steering device
US-2017328462-A1 · Nov 16, 2017 · US
Worm Speed Reducer And Electric Power Steering System
US-2017307059-A1 · Oct 26, 2017 · US
Torque transmission joint and electric power steering apparatus
US-9796418-B2 · Oct 24, 2017 · US
Angle superimposition apparatus for a vehicle steering device
US-9789898-B2 · Oct 17, 2017 · US
Torque transmission joint and electric power steering apparatus
US-9789903-B2 · Oct 17, 2017 · US
Electric power steering device
US-9783225-B2 · Oct 10, 2017 · US
Worm biasing structure
US-9777826-B2 · Oct 3, 2017 · US
Power steering apparatus
US-2017274925-A1 · Sep 28, 2017 · US
Reducer of electronic power steering apparatus
US-2017241541-A1 · Aug 24, 2017 · US
Method for controlling electric power steering apparatus, electric power steering apparatus and vehicle equipped with the same
US-2017217485-A1 · Aug 3, 2017 · US
Torque transmission joint and electric power steering apparatus
US-9718493-B2 · Aug 1, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B62D5/0454?
- CPC B62D5/0454 is the Cooperative Patent Classification code for “Worm gears.”
- How many patents are filed under CPC B62D5/0454 (Worm gears)?
- Our database includes 376 publications tagged with this CPC code.
- Is patent activity under CPC B62D5/0454 growing?
- Publication counts under this code: 44 in 2024 vs 29 in 2025 (latest complete years).