- All sections
- B - Performing operations; transporting
- B64D - Equipment for fitting in or to aircraft; flight suits; parachutes; arrangements or mounting of power plants or propulsion transmissions in aircraft
- B64D 37/34 - Conditioning fuel, e.g. heating
Patent holdings for IPC class B64D 37/34
Total number of patents in this class: 229
10-year publication summary
|
21
|
23
|
18
|
22
|
26
|
10
|
20
|
22
|
37
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 17801 |
33 |
| Hamilton Sundstrand Corporation | 4712 |
30 |
| Pratt & Whitney Canada Corp. | 4428 |
20 |
| Rtx Corporation | 9069 |
17 |
| Airbus Operations Limited | 1217 |
11 |
| The Boeing Company | 19900 |
10 |
| Airbus Operations S.A.S. | 2435 |
9 |
| Honeywell International Inc. | 14009 |
6 |
| Rolls-Royce PLC | 2976 |
5 |
| SAFRAN S.A. | 567 |
4 |
| Airbus UK Limited | 90 |
4 |
| Safran Helicopter Engines | 722 |
4 |
| United Technologies Corporation | 2259 |
3 |
| Airbus S.A.S. | 854 |
3 |
| Northrop Grumman Systems Corporation | 2926 |
3 |
| Rolls-Royce North American Technologies, Inc. | 1131 |
3 |
| Siemens AG | 24575 |
2 |
| Airbus Operations GmbH | 3281 |
2 |
| Airbus Operations S.L. | 530 |
2 |
| Raytheon Company | 8441 |
2 |
| Other owners | 56 |