- 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 13/534 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
Patent holdings for IPC class A61F 13/534
Total number of patents in this class: 704
10-year publication summary
|
72
|
59
|
105
|
92
|
82
|
64
|
71
|
51
|
40
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 22178 |
189 |
| Unicharm Corporation | 2744 |
109 |
| Daio Paper Corporation | 1407 |
62 |
| Kao Corporation | 4843 |
61 |
| Kimberly-clark Worldwide, Inc. | 5854 |
23 |
| Drylock Technologies, naamloze vennootschap | 252 |
18 |
| Ontex Group NV | 141 |
18 |
| Uni-Charm Corporation | 611 |
16 |
| Attends Healthcare Products, Inc. | 153 |
11 |
| Zuiko Corporation | 411 |
10 |
| Sumitomo Seika Chemicals Co., Ltd. | 1028 |
9 |
| Essity Hygiene and Health Aktiebolag | 1990 |
9 |
| Paul Hartmann AG | 771 |
8 |
| Glatfelter Falkenhagen GmbH | 23 |
7 |
| Nippon Shokubai Co., Ltd. | 1487 |
7 |
| Oji Holdings Corporation | 660 |
7 |
| ONTEX, besloten vennootschap | 143 |
7 |
| Libeltex | 7 |
6 |
| Livedo Corporation | 179 |
6 |
| Ontex BVBA | 60 |
6 |
| Other owners | 115 |