- All sections
- B - Performing operationstransporting
- B29C - Shaping or joining of plasticsshaping of material in a plastic state, not otherwise provided forafter-treatment of the shaped products, e.g. repairing
- B29C 48/32 - Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
Patent holdings for IPC class B29C 48/32
Total number of patents in this class: 214
10-year publication summary
|
15
|
18
|
15
|
27
|
32
|
26
|
20
|
29
|
14
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Windmoeller & Hoelscher KG | 179 |
8 |
| Corning Incorporated | 10504 |
7 |
| Celgard, LLC | 311 |
6 |
| New WinCup Holdings, Inc. | 63 |
6 |
| Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | 589 |
6 |
| 3m Innovative Properties Company | 17478 |
5 |
| Windmöller & Hölscher KG | 375 |
5 |
| Kaneka Corporation | 4703 |
4 |
| Fisher & Paykel Healthcare Limited | 2629 |
4 |
| Kyoraku Co., Ltd. | 519 |
4 |
| Daikin Industries, Ltd. | 10499 |
3 |
| Kuraray Co., Ltd. | 3589 |
3 |
| Shaw & Sons, Inc. | 37 |
3 |
| Sumitomo Heavy Industries, Ltd. | 2112 |
3 |
| Hummingbird Nano, Inc. | 8 |
3 |
| Zeus Co., LLC | 108 |
3 |
| Exelliq Austria GmbH | 15 |
3 |
| Hitachi Metals, Ltd. | 1898 |
2 |
| Ricoh Company, Ltd. | 13342 |
2 |
| Dow Global Technologies LLC | 10944 |
2 |
| Other owners | 132 |