- All sections
- D - Textilespaper
- D21G - Calendersaccessories for paper-making machines
- D21G 3/02 - Doctors for calenders
Patent holdings for IPC class D21G 3/02
Total number of patents in this class: 4
10-year publication summary
|
1
|
0
|
0
|
0
|
0
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0
|
0
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daetwyler SwissTec AG | 47 |
1 |
| Kadant Inc. | 44 |
1 |
| Voith Patent GmbH | 2753 |
1 |
| PowerCo SE | 156 |
1 |
| Other owners | 0 |