- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/06 - Lubrication
Patent holdings for IPC class F04D 29/06
Total number of patents in this class: 312
10-year publication summary
|
30
|
24
|
30
|
30
|
31
|
22
|
20
|
20
|
8
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nidec GPM GmbH | 144 |
14 |
| Sulzer Management AG | 712 |
14 |
| United Technologies Corporation | 2218 |
8 |
| Baker Hughes, a GE Company, LLC | 2049 |
8 |
| Baker Hughes Incorporated | 4903 |
7 |
| National Oilwell Varco, L.P. | 1700 |
6 |
| KSB SE & Co. KGaA | 740 |
6 |
| General Electric Company | 13938 |
5 |
| Schlumberger Canada Limited | 7627 |
5 |
| Saudi Arabian Oil Company | 14329 |
5 |
| Baker Hughes Oilfield Operations, LLC | 2551 |
5 |
| Baker Hughes Holdings LLC | 3015 |
5 |
| Schlumberger Technology Corporation | 11893 |
4 |
| Flowserve Management Company | 194 |
4 |
| Upwing Energy LLC | 39 |
4 |
| Rtx Corporation | 10141 |
4 |
| LG Electronics Inc. | 75910 |
3 |
| Hamilton Sundstrand Corporation | 5013 |
3 |
| Carrier Corporation | 3950 |
3 |
| Arctic Cat Inc. | 477 |
3 |
| Other owners | 196 |