Paper sheet handling apparatus and foreign substance detection method
US-2025277771-A1 · Sep 4, 2025 · US
Acoustic waves
Acoustic waves · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G07D7/08 |
| Official title | Acoustic waves |
| Display label | Acoustic waves |
| Total patents | 43 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 4 |
| 2017 | 8 |
| 2018 | 5 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Inspection device and inspection method
US-2025180520-A1 · Jun 5, 2025 · US
Acoustic sensor having waveguide and inspection device
US-11692819-B2 · Jul 4, 2023 · US
Device and method for evaluating sensor data for a value document
US-11257316-B2 · Feb 22, 2022 · US
Sensor and inspection device
US-2021123796-A1 · Apr 29, 2021 · US
Transducer and inspection device
US-10950655-B2 · Mar 16, 2021 · US
Methods and device for checking value documents
US-10950080-B2 · Mar 16, 2021 · US
Device and method for evaluating sensor data for a value document
US-2020294343-A1 · Sep 17, 2020 · US
Inspection device and inspection method
US-10689216-B2 · Jun 23, 2020 · US
Device and method for checking value documents for marking ink
US-10573113-B2 · Feb 25, 2020 · US
Inspection device and inspection method
US-2019283995-A1 · Sep 19, 2019 · US
Sheet identification device and sheet identification method
US-2019206172-A1 · Jul 4, 2019 · US
Device and method for checking value documents, in particular banknotes, and value document processing system
US-2019164372-A1 · May 30, 2019 · US
Transducer and inspection device
US-2019088710-A1 · Mar 21, 2019 · US
Methods and device for checking value documents
US-2019035195-A1 · Jan 31, 2019 · US
Device and method for examining documents of value and/or transporting documents of value by means of ultrasound
US-2019012866-A1 · Jan 10, 2019 · US
Item validation
US-10115259-B2 · Oct 30, 2018 · US
Method and device for examining value documents for irregularities
US-10049522-B2 · Aug 14, 2018 · US
Sound wave sensor
US-10041912-B2 · Aug 7, 2018 · US
Method for providing measurement data to an apparatus for processing valuable documents and valuable document processing apparatus
US-9905070-B2 · Feb 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G07D7/08?
- CPC G07D7/08 is the Cooperative Patent Classification code for “Acoustic waves.”
- How many patents are filed under CPC G07D7/08 (Acoustic waves)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC G07D7/08 growing?
- Publication counts under this code: 1 in 2023 vs 2 in 2025 (latest complete years).