- 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 13/511 - Topsheet, i.e. the permeable cover or layer facing the skin
Patent holdings for IPC class A61F 13/511
Total number of patents in this class: 1883
10-year publication summary
|
192
|
213
|
183
|
221
|
209
|
161
|
114
|
126
|
111
|
67
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 22035 |
537 |
| Unicharm Corporation | 2870 |
341 |
| Daio Paper Corporation | 1380 |
152 |
| Kimberly-clark Worldwide, Inc. | 5495 |
144 |
| Kao Corporation | 4964 |
143 |
| Essity Hygiene and Health Aktiebolag | 2046 |
65 |
| Uni-Charm Corporation | 600 |
26 |
| Fitesa Film Products LLC | 49 |
22 |
| Drylock Technologies, naamloze vennootschap | 265 |
16 |
| Kenvue Brands LLC | 990 |
14 |
| Mitsui Chemicals, Inc. | 3220 |
13 |
| Zuiko Corporation | 430 |
13 |
| Livedo Corporation | 157 |
12 |
| SCA Hygiene Products AB | 655 |
12 |
| Toray Industries, Inc. | 6951 |
11 |
| Oji Holdings Corporation | 724 |
11 |
| Ontex Group NV | 162 |
11 |
| Medline Industries, LP | 2318 |
9 |
| JNC Corporation | 1561 |
8 |
| JNC Fibers Corporation | 53 |
8 |
| Other owners | 315 |