- All sections
- B - Performing operationstransporting
- B23C - Milling
- B23C 3/18 - Working surfaces curved in two directions for shaping screw-propellers, turbine blades, or impellers
Patent holdings for IPC class B23C 3/18
Total number of patents in this class: 131
10-year publication summary
|
7
|
8
|
10
|
8
|
11
|
4
|
5
|
4
|
2
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Snecma | 1057 |
11 |
| SNECMA S.A. | 1145 |
9 |
| FANUC Corporation | 7369 |
7 |
| Safran Aircraft Engines | 6767 |
6 |
| Rtx Corporation | 10182 |
6 |
| Daikin Industries, Ltd. | 10514 |
4 |
| Siemens AG | 23956 |
3 |
| Chiron-Werke GmbH & Co. KG | 32 |
3 |
| Dalian University of Technology | 1608 |
3 |
| Exergy S.p.A. | 25 |
3 |
| IHI Corporation | 3543 |
3 |
| Lufthansa Technik AG | 505 |
3 |
| Makino Milling Machine Co., Ltd. | 434 |
3 |
| MTU Aero Engines AG | 740 |
3 |
| MTU Aero Engines GmbH | 408 |
3 |
| Rolls-Royce Deutschland Ltd & Co KG | 868 |
3 |
| GE Infrastructure Technology, LLC | 6155 |
3 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 855 |
3 |
| Nuovo Pignone Tecnologie S.r.l. | 1229 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
2 |
| Other owners | 47 |