- 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 13/512 - Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
Patent holdings for IPC class A61F 13/512
Total number of patents in this class: 551
10-year publication summary
|
58
|
67
|
86
|
64
|
44
|
39
|
33
|
51
|
30
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Procter & Gamble Company | 21973 |
270 |
| Kimberly-clark Worldwide, Inc. | 5314 |
62 |
| Daio Paper Corporation | 1392 |
41 |
| Unicharm Corporation | 2931 |
19 |
| Fitesa Film Products LLC | 48 |
18 |
| Kao Corporation | 5030 |
12 |
| Essity Hygiene and Health Aktiebolag | 2040 |
12 |
| TurnCare, Inc. | 95 |
9 |
| SCA Hygiene Products AB | 594 |
8 |
| Solventum Intellectual Properties Company | 3360 |
7 |
| Advantage Creation Enterprise LLC | 9 |
6 |
| Tredegar Film Products Corporation | 31 |
6 |
| Pantex International S.p.A. | 13 |
5 |
| Uni-Charm Corporation | 594 |
4 |
| Concepts for Success (c4s) | 33 |
4 |
| Xiamen Yanjan New Material Co., Ltd | 38 |
4 |
| Texol S.r.l. | 15 |
3 |
| Zuiko Corporation | 431 |
3 |
| Tredegar Film Products LLC | 6 |
3 |
| Daiwabo Holdings Co., Ltd. | 48 |
2 |
| Other owners | 53 |