- 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: 490
10-year publication summary
|
46
|
41
|
64
|
54
|
39
|
29
|
24
|
19
|
19
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 10780 |
14 |
| Saudi Arabian Oil Company | 13224 |
11 |
| Baker Hughes Incorporated | 5274 |
9 |
| National Oilwell Varco, L.P. | 1682 |
9 |
| Smith International, Inc. | 719 |
8 |
| Roper Pump Company, LLC | 29 |
8 |
| Denso Corporation | 24355 |
7 |
| Exponential Technologies, Inc. | 36 |
7 |
| NETZSCH Pumpen & Systeme GmbH | 97 |
7 |
| Baker Hughes, a GE Company, LLC | 2110 |
7 |
| Robert Bosch GmbH | 42705 |
6 |
| Hamilton Sundstrand Corporation | 4891 |
6 |
| Weatherford Technology Holdings, LLC | 2023 |
6 |
| Oerlikon Textile GmbH & Co. KG | 596 |
6 |
| Abaco Drilling Technologies LLC | 39 |
6 |
| Baker Hughes Holdings LLC | 3007 |
6 |
| Halliburton Energy Services, Inc. | 20911 |
5 |
| Nidec Corporation | 2665 |
5 |
| Alfa Laval Corporate AB | 1315 |
4 |
| Hugo Vogelsang Maschinenbau GmbH | 64 |
4 |
| Other owners | 349 |