- All sections
- A - Human necessities
- A42B - Hats; head coverings
- A42B 3/28 - Ventilating arrangements
Patent holdings for IPC class A42B 3/28
Total number of patents in this class: 464
10-year publication summary
|
29
|
56
|
72
|
67
|
76
|
68
|
84
|
68
|
56
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stryker Corporation | 3864 |
46 |
| Bell Sports, Inc. | 372 |
39 |
| Riddell, Inc. | 172 |
13 |
| 3m Innovative Properties Company | 18406 |
11 |
| Illinois Tool Works Inc. | 11152 |
11 |
| Hall Labs, LLC | 221 |
10 |
| HJC Corp. | 107 |
9 |
| Bombardier Recreational Products Inc. | 1262 |
8 |
| Klein Tools, Inc. | 160 |
7 |
| T.h.i. Total Healthcare Innovation GmbH | 11 |
7 |
| Kimpex Inc. | 75 |
6 |
| SFT Laboratory Co., Ltd. | 67 |
6 |
| Shoei Co., Ltd. | 253 |
6 |
| Public University Corporation SUWA University of Science Foundation | 10 |
6 |
| Fujita Corporation | 40 |
5 |
| Louis Garneau Sports Inc. | 55 |
5 |
| RPB Safety, LLC | 54 |
5 |
| Smith Sport Optics, Inc. | 60 |
5 |
| Schutt Sports IP, LLC | 90 |
5 |
| Dräger Safety AG & Co. KGaA | 401 |
4 |
| Other owners | 250 |