3-axis angular accelerometer
US-2020241036-A1 · Jul 30, 2020 · US
Comb drives
Comb drives · 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 | B81B2201/033 |
| Official title | Comb drives |
| Display label | Comb drives |
| Total patents | 247 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 7 |
| 2017 | 14 |
| 2018 | 9 |
| 2019 | 14 |
| 2020 | 18 |
| 2021 | 37 |
| 2022 | 22 |
| 2023 | 37 |
| 2024 | 39 |
| 2025 | 32 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mems device with movable stage
US-2020212826-A1 · Jul 2, 2020 · US
Non-linear springs to unify the dynamic motion of individual elements in a micro-mirror array
US-2020182976-A1 · Jun 11, 2020 · US
Optical device
US-2020142155-A1 · May 7, 2020 · US
Mirror unit and optical module
US-2020124473-A1 · Apr 23, 2020 · US
Optical module
US-2020124479-A1 · Apr 23, 2020 · US
Apparatus and method of increased aspect ratios in comb structures
US-2020048077-A1 · Feb 13, 2020 · US
Mems or nems device with stacked stop element
US-2019389722-A1 · Dec 26, 2019 · US
Physical quantity sensor, composite sensor, inertial measurement unit, vehicle positioning device, portable electronic device, electronic device, vehicle, traveling supporting system, and display device
US-2019383610-A1 · Dec 19, 2019 · US
Lever system for driving mirrors of a lidar transmitter
US-10509198-B1 · Dec 17, 2019 · US
Method of production of semiconductor device having semiconductor layer and support substrate spaced apart by recess
US-10479675-B2 · Nov 19, 2019 · US
Electrostatic actuator and switch
US-10457543-B2 · Oct 29, 2019 · US
Flexure-based, tip-tilt-piston actuation micro-array
US-10444492-B2 · Oct 15, 2019 · US
Sensor package having a movable sensor
US-2019308872-A1 · Oct 10, 2019 · US
Manufacturing method of sensor package
US-10384928-B1 · Aug 20, 2019 · US
Manufacturing method or sensor package
US-2019241426-A1 · Aug 8, 2019 · US
Microelectromechanical device, a microelectromechanical system, and a method of manufacturing a microelectromechanical device
US-10370242-B2 · Aug 6, 2019 · US
Actuator, shutter device, fluid control device, switch, and two-dimensional scanning sensor device
US-10340818-B2 · Jul 2, 2019 · US
Micromechanical component and production method for a micromechanical component
US-10246318-B2 · Apr 2, 2019 · US
Physical quantity sensor, complex sensor, inertial measurement unit, portable electronic device, electronic device, and vehicle
US-2019049483-A1 · Feb 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B81B2201/033?
- CPC B81B2201/033 is the Cooperative Patent Classification code for “Comb drives.”
- How many patents are filed under CPC B81B2201/033 (Comb drives)?
- Our database includes 247 publications tagged with this CPC code.
- Is patent activity under CPC B81B2201/033 growing?
- Publication counts under this code: 39 in 2024 vs 32 in 2025 (latest complete years).