- All sections
- B - Performing operations; transporting
- B29C - Shaping or joining of plastics; shaping of material in a plastic state, not otherwise provided for; after-treatment of the shaped products, e.g. repairing
- B29C 48/425 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders using three or more screws
Patent holdings for IPC class B29C 48/425
Total number of patents in this class: 58
10-year publication summary
1
|
0
|
4
|
6
|
12
|
15
|
6
|
9
|
2
|
3
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Aladdin Manufacturing Corporation | 194 |
34 |
Entex Rust & Mitschke GmbH | 34 |
4 |
Gneuss GmbH | 54 |
3 |
Wuyi University | 307 |
3 |
South China University of Technology | 1581 |
2 |
Starlinger & Co Gesellschaft m.b.H. | 102 |
2 |
Tesa SE | 1011 |
2 |
Mitsubishi Chemical Corporation | 4313 |
1 |
Arkema France | 3790 |
1 |
Blach Verwaltungs GmbH & Co. KG | 16 |
1 |
Coperion GmbH | 131 |
1 |
The Japan Steel Works, Ltd. | 597 |
1 |
Novo-Tech GmbH & Co. KG | 29 |
1 |
Covestro Intellectual Property GmbH & Co. KG | 501 |
1 |
Buwonecovera Co.,Ltd | 1 |
1 |
Other owners | 0 |