- All sections
- B - Performing operations; transporting
- B23K - Soldering or unsoldering; welding; cladding or plating by soldering or welding; cutting by applying heat locally, e.g. flame cutting; working by laser beam
- B23K 11/04 - Flash butt welding
Patent holdings for IPC class B23K 11/04
Total number of patents in this class: 100
10-year publication summary
12
|
9
|
9
|
5
|
6
|
11
|
8
|
3
|
7
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. | 385 |
10 |
Aktiebolaget SKF | 2700 |
8 |
Nippon Steel Corporation | 5649 |
8 |
Danieli & C. Officine Meccaniche S.p.A. | 680 |
6 |
Abbott Cardiovascular Systems, Inc. | 1117 |
5 |
JFE Steel Corporation | 6067 |
4 |
Illinois Tool Works Inc. | 11152 |
2 |
ArcelorMittal | 1887 |
2 |
JP Steel Plantech Co. | 80 |
2 |
Primetals Technologies Japan, Ltd. | 143 |
2 |
Changzhou Ruitai Engineering Machinery Co., Ltd | 7 |
2 |
Rtx Corporation | 8674 |
2 |
Baker Hughes Incorporated | 5689 |
1 |
Toyota Motor Corporation | 28582 |
1 |
GM Global Technology Operations LLC | 13620 |
1 |
Progress Rail Services Corp | 225 |
1 |
Sumitomo Wiring Systems, Ltd. | 9367 |
1 |
Rolls-Royce PLC | 2944 |
1 |
Siemens Energy, Inc. | 1770 |
1 |
AK Steel Properties, Inc. | 75 |
1 |
Other owners | 39 |