- All sections
- D - Textiles; paper
- D21G - Calenders; accessories for paper-making machines
- D21G 3/00 - Doctors
Patent holdings for IPC class D21G 3/00
Total number of patents in this class: 204
10-year publication summary
|
9
|
17
|
15
|
12
|
5
|
4
|
9
|
8
|
13
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2731 |
26 |
| Kadant Inc. | 45 |
24 |
| Metso Paper, Inc. | 478 |
14 |
| The Procter & Gamble Company | 22165 |
13 |
| BTG Eclepens S.A. | 26 |
9 |
| Valmet Technologies, Inc. | 160 |
8 |
| Joh. Clouth GmbH & Co. KG | 7 |
7 |
| Kadant Web Systems Inc. | 7 |
7 |
| Ecolab USA Inc. | 5336 |
6 |
| GPCP IP Holdings LLC | 1687 |
6 |
| CTP GmbH | 17 |
4 |
| Buschman Corporation | 4 |
3 |
| EXEL Composites Oyj | 49 |
3 |
| International Paper Company | 811 |
3 |
| Valmet AB | 494 |
3 |
| Valmet Technologies Oy | 290 |
3 |
| Valmet S.p.A. | 15 |
3 |
| CS Produktion AB | 4 |
3 |
| Oradoc S.r.l. | 4 |
3 |
| Ingmar Westerlund Consulting Oy | 3 |
3 |
| Other owners | 53 |