- 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 13/535 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
Patent holdings for IPC class A61F 13/535
Total number of patents in this class: 504
10-year publication summary
|
20
|
55
|
49
|
69
|
48
|
57
|
46
|
32
|
22
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 22028 |
156 |
| Unicharm Corporation | 2860 |
56 |
| Kao Corporation | 4964 |
43 |
| Kimberly-clark Worldwide, Inc. | 5501 |
40 |
| Daio Paper Corporation | 1382 |
37 |
| Essity Hygiene and Health Aktiebolag | 2043 |
33 |
| Uni-Charm Corporation | 600 |
14 |
| DSG Technology Holdings Ltd. | 40 |
13 |
| Zuiko Corporation | 429 |
9 |
| Drylock Technologies, naamloze vennootschap | 264 |
8 |
| SCA Hygiene Products AB | 657 |
7 |
| Attends Healthcare Products, Inc. | 141 |
5 |
| Livedo Corporation | 157 |
5 |
| Sumitomo Seika Chemicals Co., Ltd. | 1038 |
5 |
| Oji Holdings Corporation | 718 |
4 |
| Qurasense Inc. | 13 |
4 |
| Ontex Group NV | 162 |
4 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10928 |
3 |
| Toray Industries, Inc. | 6935 |
3 |
| Laboratoires URGO | 67 |
3 |
| Other owners | 52 |