- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 2/107 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
Patent holdings for IPC class F04C 2/107
Total number of patents in this class: 626
10-year publication summary
|
37
|
51
|
39
|
33
|
39
|
27
|
38
|
30
|
28
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Heishin Ltd. | 93 |
46 |
| NETZSCH Pumpen & Systeme GmbH | 100 |
32 |
| Schlumberger Technology Corporation | 11202 |
28 |
| National Oilwell Varco, L.P. | 1702 |
28 |
| seepex GmbH | 55 |
28 |
| Baker Hughes Incorporated | 5148 |
19 |
| Halliburton Energy Services, Inc. | 21109 |
17 |
| Rotoliptic Technologies Incorporated | 21 |
17 |
| Abaco Drilling Technologies LLC | 42 |
17 |
| Roper Pump Company, LLC | 35 |
16 |
| Smith International, Inc. | 708 |
14 |
| Schlumberger Canada Limited | 7479 |
13 |
| Services Petroliers Schlumberger | 5915 |
12 |
| Baker Hughes, a GE Company, LLC | 2103 |
12 |
| Schlumberger Technology B.v. | 5242 |
11 |
| PCM Technologies | 31 |
10 |
| Vogelsang GmbH & Co. KG | 59 |
9 |
| Weatherford Technology Holdings, LLC | 2033 |
7 |
| Reme Technologies, LLC | 16 |
7 |
| Schlumberger Holdings Limited | 2767 |
6 |
| Other owners | 277 |