- 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: 606
10-year publication summary
|
57
|
42
|
58
|
46
|
43
|
42
|
28
|
43
|
31
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Heishin Ltd. | 91 |
46 |
| NETZSCH Pumpen & Systeme GmbH | 97 |
31 |
| seepex GmbH | 56 |
28 |
| Schlumberger Technology Corporation | 10691 |
24 |
| National Oilwell Varco, L.P. | 1668 |
23 |
| Baker Hughes Incorporated | 5268 |
19 |
| Halliburton Energy Services, Inc. | 20871 |
16 |
| Rotoliptic Technologies Incorporated | 20 |
16 |
| Roper Pump Company, LLC | 28 |
16 |
| Abaco Drilling Technologies LLC | 38 |
15 |
| Smith International, Inc. | 719 |
14 |
| Schlumberger Canada Limited | 7290 |
12 |
| Baker Hughes, a GE Company, LLC | 2112 |
12 |
| Services Petroliers Schlumberger | 5782 |
10 |
| Schlumberger Technology B.v. | 5166 |
9 |
| PCM Technologies | 30 |
9 |
| Vogelsang GmbH & Co. KG | 59 |
9 |
| Weatherford Technology Holdings, LLC | 2021 |
7 |
| Reme Technologies, LLC | 17 |
7 |
| Schlumberger Holdings Limited | 2833 |
6 |
| Other owners | 277 |