- All sections
- B - Performing operationstransporting
- B29D - Producing particular articles from plastics or from substances in a plastic state
- B29D 30/48 - Bead-rings or bead-coresTreatment thereof prior to building the tyre
Patent holdings for IPC class B29D 30/48
Total number of patents in this class: 273
10-year publication summary
|
21
|
37
|
20
|
27
|
23
|
21
|
17
|
10
|
6
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fuji Seiko Co., Ltd. | 60 |
30 |
| Bridgestone Corporation | 7147 |
28 |
| Fuji Shoji Co., Ltd. | 68 |
28 |
| VMI Holland B.V. | 374 |
26 |
| The Yokohama Rubber Co., Ltd. | 3961 |
25 |
| Pirelli Tyre S.p.A. | 1870 |
17 |
| Bartell Machinery Systems, LLC | 39 |
16 |
| Sumitomo Rubber Industries, Ltd. | 4406 |
11 |
| Toyo Tire Corporation | 971 |
11 |
| Compagnie Generale des Etablissements Michelin | 4621 |
10 |
| Compagnie générale des établissements Michelin SCA | 2519 |
9 |
| Continental Reifen Deutschland GmbH | 2424 |
8 |
| Nakata Engineering Co., Ltd. | 24 |
7 |
| Toyo Tire & Rubber Co., Ltd. | 570 |
6 |
| Michelin Recherche et Technique S.A. | 2236 |
5 |
| Bridgestone Americas Tire Operations, LLC | 1041 |
4 |
| Guilin Rubber Industry R&D Institute Co., Ltd. | 7 |
4 |
| The Goodyear Tire & Rubber Company | 2568 |
3 |
| Sumitomo Electric Tochigi Co., Ltd. | 31 |
3 |
| Societe de Technologie Michelin | 627 |
2 |
| Other owners | 20 |