- All sections
- A - Human necessities
- A61L - Methods or apparatus for sterilising materials or objects in generaldisinfection, sterilisation or deodorisation of airchemical aspects of bandages, dressings, absorbent pads or surgical articlesmaterials for bandages, dressings, absorbent pads or surgical articles
- A61L 2/28 - Devices for testing the effectiveness or completeness of sterilisation, e.g. indicators which change colour
Patent holdings for IPC class A61L 2/28
Total number of patents in this class: 1011
10-year publication summary
|
56
|
73
|
63
|
84
|
111
|
99
|
147
|
89
|
69
|
42
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| American Sterilizer Company | 671 |
76 |
| 3m Innovative Properties Company | 17781 |
63 |
| Solventum Intellectual Properties Company | 3333 |
61 |
| ASP Global Manufacturing GmbH | 247 |
59 |
| Ecolab USA Inc. | 5519 |
21 |
| Stryker Corporation | 5106 |
19 |
| Aesculap AG | 1404 |
15 |
| O&M Halyard, Inc. | 399 |
15 |
| Tristel plc | 137 |
13 |
| Canon Inc. | 40398 |
11 |
| Kinnos Inc. | 39 |
11 |
| The Boeing Company | 20124 |
10 |
| Fresenius Medical Care Deutschland GmbH | 2175 |
10 |
| Merck Patent GmbH | 5768 |
9 |
| Crosstex International, Inc. | 115 |
9 |
| Rememdia LC | 19 |
9 |
| Steris Inc. | 123 |
9 |
| Canon Kabushiki Kaisha | 7081 |
8 |
| Bracco Imaging S.p.A. | 317 |
7 |
| Steris Corporation | 416 |
7 |
| Other owners | 569 |