- 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 47/40 - using at least two intermeshing screws
Patent holdings for IPC class B29C 47/40
Total number of patents in this class: 279
10-year publication summary
42
|
56
|
30
|
24
|
7
|
0
|
1
|
0
|
0
|
0
|
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 |
15 |
Covestro Deutschland AG | 2429 |
12 |
Bayer MaterialScience AG | 874 |
8 |
Erema Engineering Recycling Maschinen und Anlagen Gesellschaft m.b.H. | 183 |
7 |
Steer Engineering Private Limited | 25 |
7 |
Bayer Technology Services GmbH | 199 |
6 |
Coperion GmbH | 131 |
6 |
Frito-Lay North America, Inc. | 1350 |
5 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
5 |
Steerlife India Private Limited | 29 |
5 |
Bayer Intellectual Property GmbH | 2671 |
4 |
Sumitomo Chemical Company, Limited | 8808 |
4 |
ExxonMobil Chemical Patents Inc. | 4286 |
4 |
Northwestern University | 3112 |
4 |
Arlanxeo Deutschland GmbH | 302 |
4 |
Blach Verwaltungs GmbH & Co. KG | 16 |
4 |
Guangdong Industry Technical College | 4 |
4 |
King Abdulaziz City for Science and Technology | 151 |
4 |
Tonen Chemical Corporation | 61 |
4 |
Maxell Holdings, Ltd. | 1422 |
4 |
Other owners | 163 |