- All sections
- B - Performing operationstransporting
- B23K - Soldering or unsolderingweldingcladding or plating by soldering or weldingcutting by applying heat locally, e.g. flame cuttingworking by laser beam
- B23K 9/028 - Seam weldingBacking meansInserts for curved planar seams
Patent holdings for IPC class B23K 9/028
Total number of patents in this class: 447
10-year publication summary
|
28
|
32
|
33
|
32
|
35
|
21
|
24
|
12
|
25
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Illinois Tool Works Inc. | 11712 |
39 |
| Lincoln Global, Inc. | 2127 |
32 |
| Novarc Technologies Inc. | 40 |
12 |
| CRC-Evans Pipeline International, Inc. | 34 |
10 |
| Saipem S.p.A. | 516 |
10 |
| Siemens AG | 24299 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 9002 |
9 |
| JFE Steel Corporation | 7259 |
8 |
| General Electric Technology GmbH | 1349 |
7 |
| Viega Technology GmbH & Co. KG | 123 |
7 |
| ZF Friedrichshafen AG | 7213 |
6 |
| Nippon Steel & Sumitomo Metal Corporation | 1985 |
5 |
| Saudi Arabian Oil Company | 13931 |
5 |
| Maus Italia SpA | 12 |
5 |
| Caterpillar Inc. | 10051 |
4 |
| Critical Systems, Inc. | 6 |
4 |
| Holtec International, Inc. | 274 |
4 |
| Serimax | 20 |
4 |
| Webco Industries, Inc. | 33 |
4 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3173 |
4 |
| Other owners | 259 |