- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 11/00 - Other rotary non-positive-displacement pumps
Patent holdings for IPC class F04D 11/00
Total number of patents in this class: 44
10-year publication summary
|
3
|
5
|
3
|
1
|
6
|
3
|
2
|
3
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebara Corporation | 2087 |
5 |
| Whirlpool Corporation | 4346 |
3 |
| Schlumberger Technology Corporation | 10296 |
2 |
| Schlumberger Canada Limited | 7167 |
2 |
| Schlumberger Technology B.v. | 5083 |
2 |
| Fujikoki Corporation | 365 |
2 |
| Services Petroliers Schlumberger | 5645 |
2 |
| International Business Machines Corporation | 60224 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8550 |
1 |
| Hitachi, Ltd. | 15247 |
1 |
| Terumo Kabushiki Kaisha | 5412 |
1 |
| Barts Health NHS Trust, The Royal London Hospital | 2 |
1 |
| Czech Technical University in Prague, Faculty of Civil Engineering | 4 |
1 |
| GHD Pty Ltd | 13 |
1 |
| Jiangsu University | 1052 |
1 |
| National University Corporation Saitama University | 128 |
1 |
| Queen Mary University of London | 229 |
1 |
| Saint-Gobain Performance Plastics France | 44 |
1 |
| Sunonwealth Electric Machine Industry Co., Ltd. | 187 |
1 |
| Trane International Inc. | 1154 |
1 |
| Other owners | 13 |