- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04F - Pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumpedsiphons
- F04F 13/00 - Pressure exchangers
Patent holdings for IPC class F04F 13/00
Total number of patents in this class: 283
10-year publication summary
|
26
|
25
|
10
|
30
|
24
|
15
|
25
|
21
|
13
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Energy Recovery, Inc. | 191 |
113 |
| Schlumberger Technology Corporation | 11893 |
14 |
| Flowserve Pte. Ltd | 378 |
12 |
| Flowserve Management Company | 194 |
9 |
| Isobaric Strategies Inc. | 8 |
8 |
| Schlumberger Canada Limited | 7627 |
7 |
| Schlumberger Technology B.v. | 5302 |
7 |
| Services Petroliers Schlumberger | 6038 |
7 |
| Flowserve Pte. Ltd. | 55 |
7 |
| Weir Minerals Netherlands B.V. | 63 |
6 |
| MEC Lasertec AG | 6 |
5 |
| Poclain Hydraulics Industrie | 245 |
5 |
| Danfoss A/S | 1446 |
5 |
| 3prex AG | 8 |
5 |
| Kubota Corporation | 4414 |
4 |
| Arkling Limited | 7 |
3 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
3 |
| Benteler Automobiltechnik GmbH | 308 |
3 |
| Fluid Equipment Development Company, LLC | 89 |
3 |
| Saltpower Holding ApS | 13 |
3 |
| Other owners | 54 |