- 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 47/40 - using at least two intermeshing screws
Patent holdings for IPC class B29C 47/40
Total number of patents in this class: 270
10-year publication summary
|
56
|
30
|
24
|
7
|
0
|
1
|
0
|
0
|
0
|
0
|
| 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. | 738 |
15 |
| Covestro Deutschland AG | 2725 |
12 |
| Bayer MaterialScience AG | 806 |
8 |
| Erema Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H. | 182 |
7 |
| Steer Engineering Private Limited | 26 |
7 |
| Bayer Technology Services GmbH | 178 |
6 |
| Coperion GmbH | 153 |
6 |
| Frito-Lay North America, Inc. | 1320 |
5 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2874 |
5 |
| Steerlife India Private Limited | 28 |
5 |
| Bayer Intellectual Property GmbH | 2519 |
4 |
| Sumitomo Chemical Company, Limited | 9018 |
4 |
| ExxonMobil Chemical Patents Inc. | 4021 |
4 |
| Arlanxeo Deutschland GmbH | 274 |
4 |
| Guangdong Industry Technical College | 4 |
4 |
| King Abdulaziz City for Science and Technology | 143 |
4 |
| Tonen Chemical Corporation | 58 |
4 |
| Maxell Holdings, Ltd. | 1326 |
4 |
| Maxell, Ltd. | 2775 |
4 |
| NGK Insulators, Ltd. | 4929 |
3 |
| Other owners | 155 |