- 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 5/441 - Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices having deodorant means, e.g. filters
Patent holdings for IPC class A61F 5/441
Total number of patents in this class: 266
10-year publication summary
|
22
|
14
|
35
|
22
|
23
|
25
|
34
|
44
|
31
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hollister Incorporated | 930 |
40 |
| ConvaTec Technologies Inc. | 335 |
32 |
| Salts Healthcare Limited | 156 |
19 |
| Coloplast A/S | 1927 |
17 |
| Purewick Corporation | 277 |
15 |
| B. Braun Medical SAS | 105 |
12 |
| ConvaTec Limited | 246 |
7 |
| Donaldson Company, Inc. | 1513 |
7 |
| Emory University | 1498 |
5 |
| Sage Products, LLC | 303 |
4 |
| Welland Medical Limited | 41 |
4 |
| Stimatix GI Ltd. | 8 |
3 |
| Triple Idea Lda | 3 |
3 |
| Ostovalve LLC | 13 |
3 |
| Hamilton Sundstrand Corporation | 4525 |
2 |
| Advanced Medical Balloons GmbH | 32 |
2 |
| Alcare Co., Ltd. | 43 |
2 |
| Curaco Inc. | 23 |
2 |
| Daio Paper Corporation | 1407 |
2 |
| Evoluzione S.r.l. | 15 |
2 |
| Other owners | 83 |