- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 13/00 - Adaptations of machines or pumps for special use, e.g. for extremely high pressures
Patent holdings for IPC class F04C 13/00
Total number of patents in this class: 489
10-year publication summary
|
47
|
46
|
67
|
55
|
43
|
30
|
25
|
19
|
19
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 10608 |
14 |
| Saudi Arabian Oil Company | 12833 |
11 |
| National Oilwell Varco, L.P. | 1645 |
10 |
| Baker Hughes Incorporated | 5295 |
9 |
| Smith International, Inc. | 722 |
8 |
| Roper Pump Company, LLC | 28 |
8 |
| Denso Corporation | 24099 |
7 |
| Exponential Technologies, Inc. | 36 |
7 |
| NETZSCH Pumpen & Systeme GmbH | 98 |
7 |
| Baker Hughes, a GE Company, LLC | 2115 |
7 |
| Robert Bosch GmbH | 42411 |
6 |
| Hamilton Sundstrand Corporation | 4826 |
6 |
| Oerlikon Textile GmbH & Co. KG | 609 |
6 |
| Abaco Drilling Technologies LLC | 38 |
6 |
| Baker Hughes Holdings LLC | 3011 |
6 |
| Halliburton Energy Services, Inc. | 20730 |
5 |
| Weatherford Technology Holdings, LLC | 2011 |
5 |
| Nidec Corporation | 2642 |
5 |
| Alfa Laval Corporate AB | 1302 |
4 |
| Hugo Vogelsang Maschinenbau GmbH | 64 |
4 |
| Other owners | 348 |