- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; rotary-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: 476
10-year publication summary
|
67
|
47
|
46
|
67
|
55
|
43
|
28
|
25
|
18
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 9690 |
14 |
| Saudi Arabian Oil Company | 11322 |
11 |
| Baker Hughes Incorporated | 5689 |
10 |
| National Oilwell Varco, L.P. | 1604 |
10 |
| Denso Corporation | 23338 |
8 |
| Smith International, Inc. | 761 |
8 |
| Roper Pump Company, LLC | 26 |
8 |
| Exponential Technologies, Inc. | 37 |
7 |
| NETZSCH Pumpen & Systeme GmbH | 93 |
7 |
| Baker Hughes, a GE Company, LLC | 2171 |
7 |
| Robert Bosch GmbH | 40953 |
6 |
| Oerlikon Textile GmbH & Co. KG | 611 |
6 |
| Baker Hughes Holdings LLC | 3060 |
6 |
| Hitachi Astemo, Ltd. | 5618 |
6 |
| Halliburton Energy Services, Inc. | 20165 |
5 |
| Hamilton Sundstrand Corporation | 4525 |
5 |
| Weatherford Technology Holdings, LLC | 2135 |
5 |
| Nidec Corporation | 2579 |
5 |
| Abaco Drilling Technologies LLC | 35 |
5 |
| Hugo Vogelsang Maschinenbau GmbH | 65 |
4 |
| Other owners | 333 |