Heating implement
US-2023201028-A1 · Jun 29, 2023 · US
Eye-masks {; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing}
Eye-masks {; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing} · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A61F9/04 |
| Official title | Eye-masks {; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing} |
| Display label | Eye-masks {; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing} |
| Total patents | 90 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 3 |
| 2017 | 11 |
| 2018 | 3 |
| 2019 | 9 |
| 2020 | 10 |
| 2021 | 4 |
| 2022 | 11 |
| 2023 | 10 |
| 2024 | 8 |
| 2025 | 14 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Light diffusers for smart relaxation masks
US-11633565-B2 · Apr 25, 2023 · US
Smart relaxation mask
US-11590313-B2 · Feb 28, 2023 · US
System and method for treating meibomian gland dysfunction
US-11554048-B2 · Jan 17, 2023 · US
Smart relaxation masks with wired earpieces
US-11504497-B2 · Nov 22, 2022 · US
Controllable Ocular Phototherapy
US-2022339464-A1 · Oct 27, 2022 · US
Intelligent control apparatus and control method therefor, and intelligent wearable device
US-2022331550-A1 · Oct 20, 2022 · US
Eye mask
US-2022304865-A1 · Sep 29, 2022 · US
Sleep monitoring method and apparatus, sleep aid device and method
US-2022304623-A1 · Sep 29, 2022 · US
Heating tool and method for manufacturing heating tool
US-2022273089-A1 · Sep 1, 2022 · US
Protective headgear comprising a curved switchable shutter and comprising multiple antireflective layers
US-11413190-B2 · Aug 16, 2022 · US
Controllable ocular phototherapy
US-11400307-B2 · Aug 2, 2022 · US
Wearable Electronic Device
US-2022240016-A1 · Jul 28, 2022 · US
Wearable electronic device with speakers and sensors
US-11290818-B1 · Mar 29, 2022 · US
Eye Shield
US-2022087866-A1 · Mar 24, 2022 · US
Service glasses with selective data provision
US-2021349677-A1 · Nov 11, 2021 · US
Method for operating a sleep mode in a massage chair using progressive muscular relaxation and the massage chair capable of using the same
US-11103673-B2 · Aug 31, 2021 · US
Smart relaxation masks with wired earpieces
US-2021008331-A1 · Jan 14, 2021 · US
Light diffusers for smart relaxation masks
US-2021008332-A1 · Jan 14, 2021 · US
Dry eye treatment apparatus and methods
US-2020405534-A1 · Dec 31, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A61F9/04?
- CPC A61F9/04 is the Cooperative Patent Classification code for “Eye-masks {; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing}.”
- How many patents are filed under CPC A61F9/04 (Eye-masks {; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing})?
- Our database includes 90 publications tagged with this CPC code.
- Is patent activity under CPC A61F9/04 growing?
- Publication counts under this code: 8 in 2024 vs 14 in 2025 (latest complete years).