- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 13/12 - Combinations of two or more pumps
Patent holdings for IPC class F04D 13/12
Total number of patents in this class: 302
10-year publication summary
|
22
|
35
|
36
|
27
|
20
|
30
|
24
|
21
|
21
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21090 |
16 |
| Grundfos Holding A/S | 569 |
10 |
| Skier's Choice, Inc. | 43 |
8 |
| Schweitzer Engineering Laboratories, Inc. | 910 |
7 |
| State Farm Mutual Automobile Insurance Company | 3185 |
7 |
| Hamilton Sundstrand Corporation | 4956 |
6 |
| Pierburg GmbH | 470 |
5 |
| Schlumberger Technology Corporation | 11075 |
4 |
| Schlumberger Canada Limited | 7440 |
4 |
| Deere & Company | 7767 |
4 |
| Edwards Limited | 792 |
4 |
| Transocean Innovation Labs Ltd | 43 |
4 |
| Industrial Flow Solutions Operating, LLC | 74 |
4 |
| Baker Hughes Holdings LLC | 3002 |
4 |
| Honda Motor Co., Ltd. | 25784 |
3 |
| Caterpillar Inc. | 9852 |
3 |
| The United States of America as represented by the Secretary of the Navy | 2804 |
3 |
| Hewlett Packard Enterprise Development LP | 10762 |
3 |
| Cooler Master Co., Ltd. | 238 |
3 |
| Hytrans Beheer B.V. | 23 |
3 |
| Other owners | 197 |