- All sections
- B - Performing operationstransporting
- B04B - Centrifuges
- B04B 5/08 - Centrifuges for separating predominantly gaseous mixtures
Patent holdings for IPC class B04B 5/08
Total number of patents in this class: 79
10-year publication summary
|
8
|
9
|
11
|
6
|
5
|
9
|
3
|
6
|
2
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alfa Laval Corporate AB | 1336 |
13 |
| Alfdex AB | 65 |
10 |
| Tokyo ROKI Co., Ltd. | 70 |
5 |
| Aerodyne Microsystems Inc., a Delaware Corporation | 9 |
5 |
| Qwtip LLC | 69 |
4 |
| Safran Helicopter Engines | 844 |
4 |
| ElringKlinger AG | 573 |
3 |
| Grimaldi Development AB | 26 |
3 |
| The United States of America as represented by the Secretary of the Army | 1259 |
2 |
| 3nine AB | 21 |
2 |
| Edwards Limited | 773 |
2 |
| Reyco Systems, Inc. | 9 |
2 |
| Hengst SE | 182 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3398 |
1 |
| Shell Oil Company | 2067 |
1 |
| Areva GmbH | 90 |
1 |
| Freevalve AB | 47 |
1 |
| H R D Corporation | 87 |
1 |
| Hengst GmbH & Co. KG | 38 |
1 |
| Hengst SE & Co. KG | 23 |
1 |
| Other owners | 15 |