- 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 18/107 - Rotary-piston pumps specially adapted for elastic fluids 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 18/107
Total number of patents in this class: 53
10-year publication summary
|
9
|
6
|
8
|
3
|
4
|
2
|
4
|
1
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hoerbiger Wien GmbH | 123 |
6 |
| Ingersoll-Rand Industrial U.S., Inc. | 498 |
5 |
| Baker Hughes Incorporated | 5689 |
2 |
| Franklin Electric Co., Inc. | 217 |
2 |
| Heishin Sobi Kabushiki Kaisha | 6 |
2 |
| Hugo Vogelsang Maschinenbau GmbH | 65 |
2 |
| seepex GmbH | 54 |
2 |
| Trane International Inc. | 1123 |
2 |
| Lex Submersible Pumps FZE Company | 4 |
2 |
| Copeland LP | 656 |
2 |
| General Electric Company | 18133 |
1 |
| Schlumberger Technology Corporation | 9690 |
1 |
| Schlumberger Canada Limited | 6913 |
1 |
| Schlumberger Technology B.v. | 4951 |
1 |
| Schlumberger Holdings Limited | 2947 |
1 |
| Honeywell International Inc. | 13799 |
1 |
| Daikin Industries, Ltd. | 9495 |
1 |
| AGR Subsea AS | 23 |
1 |
| Blue Helix, LLC | 1 |
1 |
| Fu Sheng Industrial Co., Ltd. | 11 |
1 |
| Other owners | 16 |