- All sections
- A - Human necessities
- A62B - Devices, apparatus or methods for life-saving
- A62B 23/00 - Filters for breathing-protection purposes
Patent holdings for IPC class A62B 23/00
Total number of patents in this class: 142
10-year publication summary
|
12
|
8
|
12
|
12
|
9
|
44
|
39
|
16
|
7
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17857 |
9 |
| Blucher GmbH | 179 |
4 |
| Dyson Technology Limited | 3630 |
4 |
| RZ Industries LLC, DBA RZ Mask | 58 |
4 |
| Georgia Tech Research Corporation | 2727 |
3 |
| Augustine Biomedical and Design, LLC | 46 |
3 |
| Lighthouse Worldwide Solutions, Inc. | 16 |
3 |
| Nypro Inc. | 94 |
3 |
| Omachron Intellectual Property Inc. | 898 |
3 |
| Shen Zhong Hai Medical Supplies (Shen Zhen) Co., Ltd | 3 |
3 |
| Perumala Holdings, LLC (a Belize Limited Liability company) | 30 |
3 |
| LG Electronics Inc. | 72807 |
2 |
| Calgon Carbon Corporation | 238 |
2 |
| Dräger Safety AG & Co. KGaA | 431 |
2 |
| Primed Medical Products Inc. | 35 |
2 |
| Scott Technologies, Inc. | 203 |
2 |
| Snap Cpap, LLC | 36 |
2 |
| Free Air, Inc. | 3 |
2 |
| Clean-air s.r.o. | 4 |
2 |
| Alfred Kärcher SE & Co. KG | 640 |
2 |
| Other owners | 82 |