Ultrasonic machining an aperture in a workpiece
US-2025387947-A1 · Dec 25, 2025 · US
Drilling
Drilling · 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 | B06B2201/73 |
| Official title | Drilling |
| Display label | Drilling |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ultrasonic machining an aperture in a workpiece
US-12397471-B2 · Aug 26, 2025 · US
Air layer for improved performance of transducer at low frequencies
US-11992860-B2 · May 28, 2024 · US
Downhole transducer with a piezoelectric crystal material
US-2024073624-A1 · Feb 29, 2024 · US
Dual frequency ultrasonic and sonic actuator with constrained impact mass
US-11712717-B2 · Aug 1, 2023 · US
Ultrasonic machining an aperture in a workpiece
US-2023191658-A1 · Jun 22, 2023 · US
Multi-stack piezo actuator
US-11557711-B2 · Jan 17, 2023 · US
Agitator for use with a drill string
US-11542770-B2 · Jan 3, 2023 · US
Air Layer For Improved Performance Of Transducer At Low Frequencies
US-2022395860-A1 · Dec 15, 2022 · US
Ultrasonic transducer with reduced backing reflection
US-11480702-B2 · Oct 25, 2022 · US
Ultrasonic transducer for measuring wellbore characteristics
US-11333016-B2 · May 17, 2022 · US
Ultrasonic cutting holder for honeycomb core
US-11220018-B2 · Jan 11, 2022 · US
Ultrasonic transducers with piezoelectric material embedded in backing
US-11117166-B2 · Sep 14, 2021 · US
Ultrasonic Cutting Holder For Honeycomb Core
US-2021268679-A1 · Sep 2, 2021 · US
Method and apparatus for pre-loading a piezoelectric transducer for downhole acoustic communication
US-11105197-B2 · Aug 31, 2021 · US
Ultrasonic transducer for measuring wellbore characteristics
US-2021222551-A1 · Jul 22, 2021 · US
Ultrasonic transducer with reduced backing reflection
US-2021103069-A1 · Apr 8, 2021 · US
Method and apparatus for pre-loading a piezoelectric transducer for downhole acoustic communication
US-2020355068-A1 · Nov 12, 2020 · US
Ultrasonic transducer with suppressed lateral mode
US-10795042-B2 · Oct 6, 2020 · US
Multi-stack piezo actuator
US-2020235279-A1 · Jul 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B06B2201/73?
- CPC B06B2201/73 is the Cooperative Patent Classification code for “Drilling.”
- How many patents are filed under CPC B06B2201/73 (Drilling)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC B06B2201/73 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).