- All sections
- D - Textilespaper
- D21G - Calendersaccessories for paper-making machines
- D21G 3/00 - Doctors
Patent holdings for IPC class D21G 3/00
Total number of patents in this class: 180
10-year publication summary
|
17
|
15
|
12
|
5
|
4
|
9
|
9
|
14
|
6
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Voith Patent GmbH | 2740 |
28 |
| Kadant Inc. | 44 |
24 |
| The Procter & Gamble Company | 21862 |
12 |
| BTG Eclepens S.A. | 22 |
8 |
| Metso Paper, Inc. | 329 |
8 |
| Valmet Technologies, Inc. | 134 |
7 |
| Joh. Clouth GmbH & Co. KG | 6 |
6 |
| GPCP IP Holdings LLC | 1526 |
6 |
| Ecolab USA Inc. | 5831 |
5 |
| CTP GmbH | 17 |
4 |
| Valmet AB | 561 |
4 |
| Buschman Corporation | 4 |
3 |
| EXEL Composites Oyj | 46 |
3 |
| International Paper Company | 596 |
3 |
| Valmet Technologies Oy | 289 |
3 |
| Valmet S.p.A. | 15 |
3 |
| CS Produktion AB | 4 |
3 |
| Oradoc S.r.l. | 4 |
3 |
| Aktiebolaget SKF | 3156 |
2 |
| Andritz Inc. | 324 |
2 |
| Other owners | 43 |