- All sections
- B - Performing operationstransporting
- B29D - Producing particular articles from plastics or from substances in a plastic state
- B29D 30/52 - Unvulcanised treads, e.g. on used tyresRetreading
Patent holdings for IPC class B29D 30/52
Total number of patents in this class: 218
10-year publication summary
|
16
|
13
|
17
|
13
|
14
|
5
|
8
|
9
|
9
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Compagnie générale des établissements Michelin SCA | 2715 |
35 |
| Compagnie Generale des Etablissements Michelin | 4969 |
32 |
| Michelin Recherche et Technique S.A. | 2086 |
27 |
| Bridgestone Bandag, LLC | 274 |
25 |
| Bridgestone Corporation | 7251 |
17 |
| Continental Reifen Deutschland GmbH | 2537 |
11 |
| Bridgestone Americas Tire Operations, LLC | 1119 |
10 |
| Bridgestone Europe NV/SA | 379 |
9 |
| Sumitomo Rubber Industries, Ltd. | 4723 |
7 |
| Societe de Technologie Michelin | 511 |
6 |
| Pirelli Tyre S.p.A. | 1958 |
5 |
| Toyo Tire & Rubber Co., Ltd. | 488 |
5 |
| The Goodyear Tire & Rubber Company | 2394 |
4 |
| The Yokohama Rubber Co., Ltd. | 4114 |
4 |
| VMI Holland B.V. | 443 |
3 |
| Kabushiki Kaisha Bridgestone | 59 |
2 |
| KraussMaffei Berstorff GmbH | 26 |
2 |
| Ingenious Engenharia Ltda | 2 |
2 |
| Dow Global Technologies LLC | 10930 |
1 |
| Bridgestone Europe NV | 8 |
1 |
| Other owners | 10 |