Sealing device for a packaging machine, packaging machine having a sealing device and method of operating a sealing device
US-12492031-B2 · Dec 9, 2025 · US
involving a change of amplitude
involving a change of amplitude · 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 | B06B3/02 |
| Official title | involving a change of amplitude |
| Display label | involving a change of amplitude |
| Total patents | 52 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 4 |
| 2022 | 7 |
| 2023 | 10 |
| 2024 | 5 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for directing flexural waves
US-2025091087-A1 · Mar 20, 2025 · US
Ultrasonic projection device
US-2025046285-A1 · Feb 6, 2025 · US
Multi-frequency ultrasound coupled multi-nozzle food additive manufacturing device and method
US-2024324649-A1 · Oct 3, 2024 · US
Apparatus
US-2024216953-A1 · Jul 4, 2024 · US
Sealing device for a packaging machine, packaging machine having a sealing device and method of operating a sealing device
US-2024199260-A1 · Jun 20, 2024 · US
Ultrasonic transmission structure
US-11980915-B2 · May 14, 2024 · US
System for cleaning semiconductor wafers
US-11911808-B2 · Feb 27, 2024 · US
Floating non-contact ultrasonic enhanced flexible sub-aperture polishing device and method
US-11839944-B2 · Dec 12, 2023 · US
Ultrasonic vibrator driving apparatus and mesh nebulizer
US-11752279-B2 · Sep 12, 2023 · US
Method for cleaning semiconductor wafers
US-11752529-B2 · Sep 12, 2023 · US
System for cleaning semiconductor wafers
US-2023256480-A1 · Aug 17, 2023 · US
Ultrasonic vibration system having a lateral surface mounting
US-11679413-B2 · Jun 20, 2023 · US
Method for calibrating an ultrasonic bonding machine
US-11646291-B2 · May 9, 2023 · US
System for cleaning semiconductor wafers
US-11633765-B2 · Apr 25, 2023 · US
Apparatus for manufacturing display device and method of manufacturing display device
US-11584090-B2 · Feb 21, 2023 · US
Floating non-contact ultrasonic enhanced flexible sub-aperture polishing device and method
US-2023029755-A1 · Feb 2, 2023 · US
Variable-frequency ultrasonic machining system for computer numerical control milling machine
US-11554512-B2 · Jan 17, 2023 · US
Ultrasonic transmission structure
US-2022266300-A1 · Aug 25, 2022 · US
Cutting device
US-11389984-B2 · Jul 19, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B06B3/02?
- CPC B06B3/02 is the Cooperative Patent Classification code for “involving a change of amplitude.”
- How many patents are filed under CPC B06B3/02 (involving a change of amplitude)?
- Our database includes 52 publications tagged with this CPC code.
- Is patent activity under CPC B06B3/02 growing?
- Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).