- All sections
- B - Performing operations; transporting
- 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: 90
10-year publication summary
13
|
16
|
5
|
10
|
7
|
5
|
2
|
5
|
3
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Pirelli Tyre S.p.A. | 1832 |
21 |
VMI Holland B.V. | 346 |
20 |
Compagnie Generale des Etablissements Michelin | 4450 |
11 |
Compagnie générale des établissements Michelin SCA | 2477 |
8 |
Michelin Recherche et Technique S.A. | 2328 |
4 |
Bridgestone Corporation | 7067 |
3 |
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
3 |
The Yokohama Rubber Co., Ltd. | 3929 |
3 |
Harburg-Freudenberger Maschinenbau GmbH | 176 |
3 |
Toyo Tire Corporation | 943 |
2 |
Continental Aktiengesellschaft | 168 |
1 |
Continental Reifen Deutschland GmbH | 2324 |
1 |
The Goodyear Tire & Rubber Company | 2569 |
1 |
ExxonMobil Chemical Patents Inc. | 4286 |
1 |
Sumitomo Rubber Industries, Ltd. | 4421 |
1 |
Bridgestone Europe NV | 8 |
1 |
Fuji Seiko Co., Ltd. | 62 |
1 |
Fuji Shoji Co., Ltd. | 73 |
1 |
Societe de Technologie Michelin | 692 |
1 |
The Steelastic Company LLC | 15 |
1 |
Other owners | 2 |