- All sections
- B - Performing operations; transporting
- B29B - Preparation or pretreatment of the material to be shaped; making granules or preforms; recovery of plastics or other constituents of waste material containing plastics
- B29B 7/48 - Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
Patent holdings for IPC class B29B 7/48
Total number of patents in this class: 473
10-year publication summary
|
22
|
34
|
56
|
48
|
59
|
32
|
41
|
27
|
45
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Japan Steel Works, Ltd. | 597 |
24 |
| Coperion GmbH | 131 |
17 |
| Shibaura Machine Co., Ltd. | 184 |
17 |
| Covestro Deutschland AG | 2429 |
14 |
| HSP Technologies Inc. | 21 |
12 |
| Tesa SE | 1011 |
11 |
| Compagnie Generale des Etablissements Michelin | 4450 |
11 |
| Steer Engineering Private Limited | 25 |
10 |
| Entex Rust & Mitschke GmbH | 34 |
9 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
9 |
| Toshiba Kikai Kabushiki Kaisha | 300 |
9 |
| Gneuss GmbH | 54 |
8 |
| Bayer MaterialScience AG | 874 |
7 |
| Dow Global Technologies LLC | 10147 |
7 |
| Toray Industries, Inc. | 6652 |
7 |
| Pirelli Tyre S.p.A. | 1832 |
7 |
| United States Gypsum Company | 1019 |
7 |
| Sumitomo Chemical Company, Limited | 8808 |
6 |
| Holcim Technology Ltd. | 868 |
6 |
| Kobe Steel, Ltd. | 912 |
6 |
| Other owners | 269 |