- All sections
- B - Performing operations; transporting
- B21C - Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling; auxiliary operations used in connection with metal-working without essentially removing material
- B21C 23/00 - Extruding metal; Impact extrusion
Patent holdings for IPC class B21C 23/00
Total number of patents in this class: 443
10-year publication summary
38
|
34
|
54
|
48
|
41
|
39
|
34
|
26
|
33
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Battelle Memorial Institute | 2356 |
18 |
Aisin Keikinzoku Co., Ltd. | 83 |
13 |
Honeywell International Inc. | 13799 |
10 |
Ball Corporation | 390 |
8 |
Manchester Copper Products, LLC | 16 |
8 |
ASMAG-Holding GmbH | 46 |
7 |
Bwe Limited | 16 |
7 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
7 |
National University Corporation Kumamoto University | 371 |
7 |
Rio Tinto ALCAN International Limited | 214 |
7 |
Benteler Automobiltechnik GmbH | 258 |
6 |
Constellium SINGEN GmbH | 79 |
6 |
Norsk Hydro ASA | 288 |
6 |
UACJ Corporation | 631 |
6 |
Showa Denko K.K. | 2539 |
5 |
Korea Institute of Industrial Technology | 994 |
5 |
Ube Machinery Corporation, Ltd. | 118 |
5 |
American Axle & Manufacturing, Inc. | 649 |
4 |
BIOTRONIK AG | 387 |
4 |
Constellium Issoire | 208 |
4 |
Other owners | 300 |