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  • B - Performing operationstransporting
  • B21C - Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rollingauxiliary operations used in connection with metal-working without essentially removing material
  • B21C 23/21 - Presses specially adapted for extruding metal

Patent holdings for IPC class B21C 23/21

Total number of patents in this class: 162

10-year publication summary

15
12
15
6
17
10
10
9
11
9
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Battelle Memorial Institute
2491
18
Ube Machinery Corporation, Ltd.
121
16
SMS Group GmbH
1127
14
Danieli & C. Officine Meccaniche S.p.A.
717
11
SMS Meer GmbH
65
9
Manchester Copper Products, LLC
16
8
American Axle & Manufacturing, Inc.
650
6
EXCO Technologies Limited
54
5
ASMAG-Holding GmbH
46
3
BIOTRONIK AG
422
3
The Electric Materials Company
5
3
Magna International Inc.
1231
3
Constellium Issoire
218
2
GrafTech International Holdings Inc.
112
2
Moog GmbH
49
2
National Machinery LLC
42
2
Norsk Hydro ASA
257
2
Sandvik Intellectual Property AB
1485
2
Technische Universitat Berlin
354
2
Toyota Motor Corporation
32331
1
Other owners 48

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