- All sections
- A - Human necessities
- A61F - Filters implantable into blood vesselsprosthesesdevices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stentsorthopaedic, nursing or contraceptive devicesfomentationtreatment or protection of eyes or earsbandages, dressings or absorbent padsfirst-aid kits
- A61F 13/513 - Topsheet, i.e. the permeable cover or layer facing the skin having areas of different permeability
Patent holdings for IPC class A61F 13/513
Total number of patents in this class: 625
10-year publication summary
|
58
|
92
|
88
|
77
|
54
|
54
|
50
|
55
|
19
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 21920 |
355 |
| Kimberly-clark Worldwide, Inc. | 5297 |
46 |
| Essity Hygiene and Health Aktiebolag | 2040 |
29 |
| Medline Industries, LP | 2365 |
14 |
| Uni-Charm Corporation | 597 |
13 |
| Daio Paper Corporation | 1410 |
12 |
| TurnCare, Inc. | 99 |
9 |
| Fitesa Film Products LLC | 48 |
9 |
| Attends Healthcare Products, Inc. | 138 |
8 |
| Kao Corporation | 5041 |
7 |
| Unicharm Corporation | 2964 |
7 |
| Concepts for Success (c4s) | 33 |
5 |
| Medline Industries, Inc. | 185 |
4 |
| SCA Hygiene Products AB | 579 |
4 |
| Zuiko Corporation | 433 |
4 |
| Allegiance Corporation | 237 |
3 |
| Fitesa Germany GmbH | 40 |
3 |
| Tredegar Film Products Corporation | 31 |
3 |
| Xiamen Yanjan New Material Co., Ltd | 38 |
3 |
| Hanes Innerwear Australia Pty Ltd | 65 |
3 |
| Other owners | 84 |