Acoustic sensor assembly having improved frequency response
US-12108204-B2 · Oct 1, 2024 · US
for loudspeakers
for loudspeakers · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04R19/013 |
| Official title | {for loudspeakers} |
| Display label | for loudspeakers |
| Total patents | 66 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 10 |
| 2017 | 10 |
| 2018 | 6 |
| 2019 | 7 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Capacitive-type electro-acoustic transducer
US-12096182-B2 · Sep 17, 2024 · US
Display device
US-2024305929-A1 · Sep 12, 2024 · US
Acoustic package structure and covering structure
US-2024276139-A1 · Aug 15, 2024 · US
Acoustic package structure and covering structure
US-12063470-B1 · Aug 13, 2024 · US
Drive circuit of electrostatic film actuator
US-2024267040-A1 · Aug 8, 2024 · US
Acoustic sensor assembly having improved frequency response
US-2023217154-A1 · Jul 6, 2023 · US
Ultrasonic generator, method of manufacturing the same, display panel and screen sound producing system
US-11659338-B2 · May 23, 2023 · US
Magnetic field canceling audio devices
US-11641553-B1 · May 2, 2023 · US
Substituted thiolate salt melt additives
US-2023095033-A1 · Mar 30, 2023 · US
Capacitive-type electro-acoustic transducer
US-2023019307-A1 · Jan 19, 2023 · US
Sound pressure-electrical signal conversion device and conversion method for same
US-2022278267-A1 · Sep 1, 2022 · US
Electroacoustic Transducer
US-2021409872-A1 · Dec 30, 2021 · US
Electrostatic speaker and a method for generating acoustic signals
US-11153690-B2 · Oct 19, 2021 · US
Magnetic field canceling audio devices
US-11146892-B1 · Oct 12, 2021 · US
Electro-acoustic transducer and electro-acoustic conversion device
US-11076222-B2 · Jul 27, 2021 · US
Package structure of sound producing device and manufacturing method thereof
US-2021092500-A1 · Mar 25, 2021 · US
Electrostatic speaker and a method for generating acoustic signals
US-2020236469-A1 · Jul 23, 2020 · US
Electro-acoustic transducer and electro-acoustic conversion device
US-2020196047-A1 · Jun 18, 2020 · US
Assembly comprising an electrostatic sound generator and a transformer
US-10687148-B2 · Jun 16, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04R19/013?
- CPC H04R19/013 is the Cooperative Patent Classification code for “for loudspeakers.”
- How many patents are filed under CPC H04R19/013 (for loudspeakers)?
- Our database includes 66 publications tagged with this CPC code.
- Is patent activity under CPC H04R19/013 growing?
- Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).