Steerable camera for AR hand tracking
US-12405675-B2 · Sep 2, 2025 · US
Devices for conversing with the deaf-blind
Devices for conversing with the deaf-blind · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G09B21/04 |
| Official title | Devices for conversing with the deaf-blind |
| Display label | Devices for conversing with the deaf-blind |
| Total patents | 65 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 12 |
| 2019 | 7 |
| 2020 | 10 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 10 |
| 2024 | 5 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for providing sign language service
US-2025065504-A1 · Feb 27, 2025 · US
Steerable camera for ar hand tracking
US-2024427427-A1 · Dec 26, 2024 · US
Steerable camera for AR hand tracking
US-12105891-B2 · Oct 1, 2024 · US
Device and method of providing audiovisual content for the disabled
US-12020560-B2 · Jun 25, 2024 · US
Steerable camera for ar hand tracking
US-2024103631-A1 · Mar 28, 2024 · US
Testing computer program accessibility for users with disabilities, such as for use with mobile phones
US-11860767-B2 · Jan 2, 2024 · US
Systems and methods for generating tactile 3D maps
US-11840107-B1 · Dec 12, 2023 · US
Converting sign language
US-11817126-B2 · Nov 14, 2023 · US
Steerable camera for AR hand tracking
US-11747912-B1 · Sep 5, 2023 · US
Device and method of providing audiovisual content for the disabled
US-2023169834-A1 · Jun 1, 2023 · US
Testing computer program accessibility for users with disabilities, such as for use with mobile phones
US-2023138565-A1 · May 4, 2023 · US
Self-centering user interface for inputting information
US-2023125971-A1 · Apr 27, 2023 · US
Smart seamless sign language conversation device
US-2023077446-A1 · Mar 16, 2023 · US
Automatic translation between sign language and spoken language
US-2023085161-A1 · Mar 16, 2023 · US
Self-centering user interface for inputting information
US-11587412-B1 · Feb 21, 2023 · US
Ensuring that computer programs are accessible to users with disabilities, such as for use with mobile phones
US-11550702-B1 · Jan 10, 2023 · US
Neural network model for generation of compressed haptic actuator signal from audio input
US-2022343794-A1 · Oct 27, 2022 · US
Converting sign language
US-2022335971-A1 · Oct 20, 2022 · US
Neural network model for generation of compressed haptic actuator signal from audio input
US-11355033-B2 · Jun 7, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G09B21/04?
- CPC G09B21/04 is the Cooperative Patent Classification code for “Devices for conversing with the deaf-blind.”
- How many patents are filed under CPC G09B21/04 (Devices for conversing with the deaf-blind)?
- Our database includes 65 publications tagged with this CPC code.
- Is patent activity under CPC G09B21/04 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).