- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04D - Non-positive-displacement pumps
- F04D 29/043 - Shafts
Patent holdings for IPC class F04D 29/043
Total number of patents in this class: 344
10-year publication summary
|
20
|
44
|
56
|
34
|
25
|
43
|
57
|
46
|
43
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Molten Metal Equipment Innovations, LLC | 96 |
13 |
| ECP Entwicklungsgesellschaft mbH | 215 |
12 |
| Halliburton Energy Services, Inc. | 20165 |
11 |
| Grundfos Holding A/S | 506 |
10 |
| Sulzer Management AG | 613 |
8 |
| Procyrion, Inc. | 47 |
7 |
| Ebara Corporation | 1951 |
6 |
| Saudi Arabian Oil Company | 11322 |
6 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
6 |
| Ecotech, Inc. | 18 |
5 |
| Pyrotek, Inc. | 193 |
5 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 230 |
5 |
| Baker Hughes Holdings LLC | 3060 |
5 |
| LG Electronics Inc. | 69257 |
4 |
| Hitachi Automotive Systems, Ltd. | 3970 |
4 |
| Denso Corporation | 23338 |
4 |
| Terumo Kabushiki Kaisha | 5216 |
4 |
| Amotech Co., Ltd. | 460 |
4 |
| DAB Pumps S.p.A. | 29 |
4 |
| Hanon Systems EFP Canada Ltd. | 65 |
4 |
| Other owners | 217 |