- 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: 621
10-year publication summary
|
76
|
90
|
86
|
55
|
47
|
24
|
20
|
22
|
21
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9077 |
52 |
| Denso Corporation | 23721 |
21 |
| Robert Bosch GmbH | 41717 |
17 |
| Rolls-Royce Corporation | 1719 |
17 |
| Carrier Corporation | 4444 |
13 |
| Safran Aircraft Engines | 6024 |
13 |
| Rolls-Royce North American Technologies, Inc. | 1133 |
12 |
| General Electric Company | 17803 |
11 |
| Nuovo Pignone Tecnologie S.r.l. | 852 |
11 |
| Mitsubishi Heavy Industries Compressor Corporation | 620 |
10 |
| Dyson Technology Limited | 3412 |
9 |
| Safran Aero Boosters SA | 180 |
9 |
| KSB SE & Co. KGaA | 670 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 8515 |
7 |
| Daikin Industries, Ltd. | 9810 |
7 |
| EBM-Papst St. Georgen GmbH & Co. KG | 271 |
7 |
| MTU Aero Engines GmbH | 522 |
7 |
| Grundfos Holding A/S | 526 |
7 |
| Siemens AG | 24572 |
6 |
| Rolls-Royce PLC | 2981 |
6 |
| Other owners | 370 |