- 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: 264
10-year publication summary
|
30
|
24
|
7
|
0
|
1
|
0
|
0
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Japan Steel Works, Ltd. | 793 |
15 |
| Covestro Deutschland AG | 2802 |
12 |
| Bayer MaterialScience AG | 737 |
8 |
| Steer Engineering Private Limited | 33 |
8 |
| Erema Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H. | 199 |
7 |
| Bayer Technology Services GmbH | 159 |
6 |
| Coperion GmbH | 163 |
6 |
| Frito-Lay North America, Inc. | 1323 |
5 |
| Bayer Intellectual Property GmbH | 2410 |
4 |
| Sumitomo Chemical Company, Limited | 9055 |
4 |
| ExxonMobil Chemical Patents Inc. | 3827 |
4 |
| Arlanxeo Deutschland GmbH | 274 |
4 |
| Guangdong Industry Technical College | 4 |
4 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2835 |
4 |
| King Abdulaziz City for Science and Technology | 144 |
4 |
| Steerlife India Private Limited | 24 |
4 |
| Tonen Chemical Corporation | 39 |
4 |
| Maxell Holdings, Ltd. | 1273 |
4 |
| Maxell, Ltd. | 2939 |
4 |
| NGK Insulators, Ltd. | 5206 |
3 |
| Other owners | 150 |