- All sections
- B - Performing operationstransporting
- B29D - Producing particular articles from plastics or from substances in a plastic state
- B29D 30/44 - Stretching or treating the layers before application on the drum
Patent holdings for IPC class B29D 30/44
Total number of patents in this class: 92
10-year publication summary
|
16
|
5
|
10
|
7
|
5
|
2
|
5
|
3
|
5
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pirelli Tyre S.p.A. | 1921 |
24 |
| VMI Holland B.V. | 413 |
23 |
| Compagnie Generale des Etablissements Michelin | 4754 |
11 |
| Compagnie générale des établissements Michelin SCA | 2577 |
8 |
| The Yokohama Rubber Co., Ltd. | 4054 |
4 |
| Bridgestone Corporation | 7228 |
3 |
| Michelin Recherche et Technique S.A. | 2162 |
3 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4997 |
3 |
| Harburg-Freudenberger Maschinenbau GmbH | 188 |
3 |
| Toyo Tire Corporation | 1012 |
2 |
| Continental Reifen Deutschland GmbH | 2455 |
1 |
| ExxonMobil Chemical Patents Inc. | 3976 |
1 |
| Sumitomo Rubber Industries, Ltd. | 4664 |
1 |
| Bridgestone Europe NV | 8 |
1 |
| Fuji Seiko Co., Ltd. | 60 |
1 |
| Fuji Shoji Co., Ltd. | 68 |
1 |
| Toyo Tire & Rubber Co., Ltd. | 534 |
1 |
| KraussMaffei Extrusion GmbH | 54 |
1 |
| Other owners | 0 |