- All sections
- A - Human necessities
- A61F - Filters implantable into blood vessels; prostheses; devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents; orthopaedic, nursing or contraceptive devices; fomentation; treatment or protection of eyes or ears; bandages, dressings or absorbent pads; first-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: 581
10-year publication summary
|
68
|
58
|
92
|
88
|
75
|
52
|
50
|
45
|
50
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 22165 |
337 |
| Kimberly-clark Worldwide, Inc. | 5520 |
39 |
| Essity Hygiene and Health Aktiebolag | 2015 |
25 |
| Uni-Charm Corporation | 605 |
13 |
| Daio Paper Corporation | 1390 |
12 |
| Medline Industries, LP | 2268 |
11 |
| Fitesa Film Products LLC | 49 |
9 |
| TurnCare, Inc. | 67 |
8 |
| Attends Healthcare Products, Inc. | 147 |
7 |
| Unicharm Corporation | 2786 |
7 |
| Kao Corporation | 4903 |
6 |
| Concepts for Success (c4s) | 33 |
5 |
| SCA Hygiene Products AB | 685 |
5 |
| Medline Industries, Inc. | 223 |
4 |
| Zuiko Corporation | 420 |
4 |
| Allegiance Corporation | 258 |
3 |
| EDGEWELL Personal Care Brands, LLC | 1350 |
3 |
| Fitesa Germany GmbH | 37 |
3 |
| Tredegar Film Products Corporation | 33 |
3 |
| Hanes Innerwear Australia Pty Ltd | 62 |
3 |
| Other owners | 74 |