- 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 45/52 - Non-return devices
Patent holdings for IPC class B29C 45/52
Total number of patents in this class: 45
10-year publication summary
|
3
|
2
|
2
|
4
|
1
|
3
|
0
|
3
|
2
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Japan Steel Works, Ltd. | 747 |
7 |
| Husky Injection Molding Systems Ltd. | 1031 |
5 |
| KraussMaffei Technologies GmbH | 341 |
5 |
| Nissei Plastic Industrial Co., Ltd. | 146 |
4 |
| Maxell, Ltd. | 2822 |
4 |
| Maxell Holdings, Ltd. | 1301 |
3 |
| iMFLUX Inc | 105 |
2 |
| The Procter & Gamble Company | 22000 |
1 |
| Hitachi Maxell, Ltd. | 436 |
1 |
| Demag Ergotech GmbH | 7 |
1 |
| Dr. Boy GmbH & Co. KG | 5 |
1 |
| Fanuc Ltd | 182 |
1 |
| Md PLASTICS INCORPORATED | 3 |
1 |
| Sodick Co., Ltd. | 299 |
1 |
| Spiral Logic Limited | 7 |
1 |
| Sumitomo Heavy Industries, Ltd. | 1946 |
1 |
| Sumitomo (SHI) Demag Plastics Machinery GmbH | 38 |
1 |
| Toyo Machinery & Metal Co., Ltd. | 108 |
1 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6121 |
1 |
| Micro-ams Inc. | 10 |
1 |
| Other owners | 2 |