- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04D - Non-positive-displacement pumps
- F04D 29/16 - Sealings between pressure and suction sides
Patent holdings for IPC class F04D 29/16
Total number of patents in this class: 615
10-year publication summary
|
67
|
76
|
90
|
86
|
55
|
47
|
24
|
21
|
22
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
51 |
| Denso Corporation | 23338 |
21 |
| Robert Bosch GmbH | 40953 |
17 |
| Rolls-Royce Corporation | 1686 |
17 |
| Carrier Corporation | 4759 |
13 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
12 |
| Safran Aircraft Engines | 5739 |
12 |
| General Electric Company | 18133 |
11 |
| Nuovo Pignone Tecnologie S.r.l. | 789 |
11 |
| Mitsubishi Heavy Industries Compressor Corporation | 613 |
10 |
| Safran Aero Boosters SA | 180 |
9 |
| KSB SE & Co. KGaA | 628 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
8 |
| Dyson Technology Limited | 3124 |
8 |
| EBM-Papst St. Georgen GmbH & Co. KG | 286 |
8 |
| Siemens AG | 24990 |
7 |
| Daikin Industries, Ltd. | 9495 |
7 |
| MTU Aero Engines GmbH | 565 |
7 |
| Grundfos Holding A/S | 506 |
7 |
| Rolls-Royce PLC | 2944 |
6 |
| Other owners | 364 |