- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04D - Non-positive-displacement pumps
- F04D 27/02 - Surge control
Patent holdings for IPC class F04D 27/02
Total number of patents in this class: 1311
10-year publication summary
|
94
|
114
|
134
|
114
|
120
|
93
|
82
|
63
|
71
|
15
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 18133 |
57 |
| Rtx Corporation | 8674 |
51 |
| Carrier Corporation | 4759 |
39 |
| Safran Aircraft Engines | 5739 |
38 |
| Nuovo Pignone Tecnologie S.r.l. | 789 |
32 |
| Siemens AG | 24990 |
30 |
| Hamilton Sundstrand Corporation | 4525 |
25 |
| Pratt & Whitney Canada Corp. | 4215 |
24 |
| GE Infrastructure Technology, LLC | 5873 |
24 |
| Rolls-Royce PLC | 2944 |
22 |
| JPMorgan Chase Bank, National Association | 10964 |
22 |
| Praxair Technology, Inc. | 1367 |
22 |
| BorgWarner Inc. | 2604 |
21 |
| Honeywell International Inc. | 13799 |
19 |
| Edwards Limited | 764 |
19 |
| Atlas Copco Airpower, naamloze vennootschap | 915 |
18 |
| Rolls-Royce Corporation | 1686 |
18 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
18 |
| Robert Bosch GmbH | 40953 |
17 |
| Snecma | 1065 |
17 |
| Other owners | 778 |