- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04D - Non-positive-displacement pumps
- F04D 29/046 - Bearings
Patent holdings for IPC class F04D 29/046
Total number of patents in this class: 496
10-year publication summary
|
37
|
42
|
58
|
37
|
49
|
71
|
50
|
49
|
42
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Grundfos Holding A/S | 506 |
27 |
| Ebara Corporation | 1951 |
16 |
| NTN Corporation | 5008 |
14 |
| Halliburton Energy Services, Inc. | 20165 |
13 |
| Nidec GPM GmbH | 152 |
12 |
| Robert Bosch GmbH | 40953 |
10 |
| Terumo Kabushiki Kaisha | 5216 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
9 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
8 |
| ECP Entwicklungsgesellschaft mbH | 215 |
7 |
| ITT Manufacturing Enterprises LLC | 518 |
7 |
| Mawetal LLC | 37 |
7 |
| Extract Companies LLC | 17 |
7 |
| Schlumberger Technology Corporation | 9690 |
6 |
| Procyrion, Inc. | 47 |
6 |
| KSB SE & Co. KGaA | 628 |
6 |
| Luraco Health and Beauty, LLC. | 9 |
6 |
| Amotech Co., Ltd. | 460 |
5 |
| Asia Vital Components Co., Ltd. | 413 |
5 |
| Coavis | 67 |
5 |
| Other owners | 310 |