- All sections
- A - Human necessities
- A42B - Hatshead coverings
- A42B 1/0188 - Protection for the ears, e.g. removable ear muffs
Patent holdings for IPC class A42B 1/0188
Total number of patents in this class: 20
10-year publication summary
|
0
|
0
|
2
|
0
|
5
|
4
|
5
|
6
|
5
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17458 |
5 |
| ResMed Asia Pte Ltd | 169 |
3 |
| Milwaukee Electric Tool Corporation | 4991 |
2 |
| JSP Limited | 184 |
1 |
| Merry Electronics(Shenzhen) Co., Ltd. | 85 |
1 |
| The Bell System, LLC | 5 |
1 |
| Guangzhou Vanguard Watersports Products Co Ltd. | 1 |
1 |
| Earvolution, Inc. | 8 |
1 |
| Ningbo Huaqia Electronic Technology Co., Ltd | 2 |
1 |
| RLF Montana, LLC | 1 |
1 |
| Blueprint Psychological Services LLC | 1 |
1 |
| Hutkowski, Sheila A. | 1 |
1 |
| Clearburgh Proprietary Limited | 1 |
1 |
| Other owners | 0 |