- 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: 311
10-year publication summary
|
30
|
24
|
30
|
30
|
31
|
22
|
20
|
20
|
8
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nidec GPM GmbH | 143 |
14 |
| Sulzer Management AG | 711 |
14 |
| United Technologies Corporation | 2220 |
8 |
| Baker Hughes, a GE Company, LLC | 2105 |
8 |
| Baker Hughes Incorporated | 4947 |
7 |
| National Oilwell Varco, L.P. | 1699 |
6 |
| KSB SE & Co. KGaA | 735 |
6 |
| General Electric Company | 13894 |
5 |
| Schlumberger Canada Limited | 7605 |
5 |
| Saudi Arabian Oil Company | 14161 |
5 |
| Baker Hughes Oilfield Operations, LLC | 2526 |
5 |
| Baker Hughes Holdings LLC | 2987 |
5 |
| Schlumberger Technology Corporation | 11767 |
4 |
| Flowserve Management Company | 193 |
4 |
| Upwing Energy LLC | 39 |
4 |
| Rtx Corporation | 10055 |
4 |
| LG Electronics Inc. | 75591 |
3 |
| Hamilton Sundstrand Corporation | 5017 |
3 |
| Carrier Corporation | 3960 |
3 |
| Arctic Cat Inc. | 471 |
3 |
| Other owners | 195 |