- 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: 637
10-year publication summary
|
42
|
58
|
46
|
43
|
42
|
28
|
43
|
33
|
29
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Heishin Ltd. | 96 |
49 |
| NETZSCH Pumpen & Systeme GmbH | 109 |
34 |
| Schlumberger Technology Corporation | 11584 |
29 |
| seepex GmbH | 54 |
29 |
| National Oilwell Varco, L.P. | 1690 |
28 |
| Baker Hughes Incorporated | 5018 |
19 |
| Abaco Drilling Technologies LLC | 42 |
18 |
| Halliburton Energy Services, Inc. | 21257 |
17 |
| Rotoliptic Technologies Incorporated | 21 |
17 |
| Roper Pump Company, LLC | 42 |
16 |
| Schlumberger Canada Limited | 7588 |
14 |
| Smith International, Inc. | 698 |
14 |
| Services Petroliers Schlumberger | 5996 |
12 |
| Baker Hughes, a GE Company, LLC | 2091 |
12 |
| Schlumberger Technology B.v. | 5282 |
11 |
| Vogelsang GmbH & Co. KG | 63 |
9 |
| PCM Technologies | 29 |
8 |
| Thru Tubing Solutions, Inc. | 403 |
8 |
| Weatherford Technology Holdings, LLC | 2072 |
7 |
| Reme Technologies, LLC | 16 |
7 |
| Other owners | 279 |