- All sections
- B - Performing operationstransporting
- B29D - Producing particular articles from plastics or from substances in a plastic state
- B29D 30/70 - Annular breakers
Patent holdings for IPC class B29D 30/70
Total number of patents in this class: 90
10-year publication summary
|
8
|
5
|
16
|
1
|
8
|
2
|
4
|
1
|
3
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pirelli Tyre S.p.A. | 1967 |
25 |
| Bridgestone Corporation | 7275 |
13 |
| Sumitomo Rubber Industries, Ltd. | 4733 |
8 |
| Toyo Tire Corporation | 1060 |
7 |
| Continental Reifen Deutschland GmbH | 2545 |
6 |
| The Yokohama Rubber Co., Ltd. | 4107 |
6 |
| Michelin Recherche et Technique S.A. | 2076 |
4 |
| Compagnie Generale des Etablissements Michelin | 4983 |
4 |
| Compagnie générale des établissements Michelin SCA | 2759 |
3 |
| Harburg-Freudenberger Maschinenbau GmbH | 192 |
3 |
| VMI Holland B.V. | 453 |
3 |
| Bridgestone Americas Tire Operations, LLC | 1134 |
2 |
| Societe de Technologie Michelin | 501 |
2 |
| The Goodyear Tire & Rubber Company | 2378 |
1 |
| Bridgestone Europe NV | 8 |
1 |
| Kolon Industries, Inc. | 1858 |
1 |
| Retyre AS | 16 |
1 |
| Other owners | 0 |