- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/10 - Shaft sealings
Patent holdings for IPC class F04D 29/10
Total number of patents in this class: 694
10-year publication summary
|
75
|
71
|
51
|
37
|
50
|
40
|
32
|
41
|
30
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries Compressor Corporation | 650 |
30 |
| Nuovo Pignone Tecnologie S.r.l. | 1121 |
25 |
| Mitsubishi Heavy Industries, Ltd. | 9279 |
20 |
| Siemens AG | 23948 |
15 |
| Grundfos Holding A/S | 616 |
15 |
| Robert Bosch GmbH | 44445 |
13 |
| Rtx Corporation | 10264 |
13 |
| Halliburton Energy Services, Inc. | 21259 |
11 |
| Nidec GPM GmbH | 144 |
11 |
| Nuovo Pignone SRL | 349 |
10 |
| Valeo Systemes de Controle Moteur | 572 |
10 |
| Siemens Energy Global GmbH & Co. KG | 3544 |
10 |
| Ebara Corporation | 2388 |
9 |
| BorgWarner Inc. | 2587 |
8 |
| Dresser-Rand Company | 197 |
8 |
| Weir Minerals Australia, Ltd. | 313 |
8 |
| Baker Hughes Oilfield Operations, LLC | 2564 |
8 |
| Hamilton Sundstrand Corporation | 5013 |
7 |
| Toyota Industries Corporation | 1247 |
7 |
| Eagle Industry Co., Ltd. | 1197 |
7 |
| Other owners | 449 |