- All sections
- A - Human necessities
- A62B - Devices, apparatus or methods for life-saving
- A62B 23/02 - Filters for breathing-protection purposes for respirators
Patent holdings for IPC class A62B 23/02
Total number of patents in this class: 1328
10-year publication summary
|
86
|
110
|
98
|
83
|
92
|
414
|
410
|
224
|
142
|
49
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| 3m Innovative Properties Company | 17833 |
170 |
| LG Electronics Inc. | 73021 |
31 |
| Honeywell Safety Products USA, Inc. | 844 |
25 |
| Scott Technologies, Inc. | 203 |
17 |
| Samsung Electronics Co., Ltd. | 146092 |
12 |
| Dräger Safety AG & Co. KGaA | 433 |
12 |
| Koninklijke Philips N.V. | 24786 |
11 |
| Dyson Technology Limited | 3638 |
11 |
| Eurofilters Holding N.V. | 90 |
10 |
| Milwaukee Electric Tool Corporation | 4390 |
9 |
| Avon Protection Systems, Inc. | 32 |
8 |
| Hollingsworth & Vose Company | 294 |
7 |
| Intersurgical AG | 139 |
7 |
| Octo Safety Devices, LLC | 16 |
7 |
| Honeywell International Inc. | 13545 |
6 |
| Toray Advanced Materials Korea Inc. | 259 |
6 |
| The United States of America as represented by the Secretary of the Army | 1213 |
6 |
| D. Wheatley Enterprises, Inc. | 24 |
6 |
| JSP Limited | 176 |
6 |
| Moldex-Metric, Inc. | 135 |
6 |
| Other owners | 955 |