- 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: 206
10-year publication summary
|
15
|
21
|
23
|
18
|
22
|
26
|
10
|
22
|
22
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 4525 |
30 |
| General Electric Company | 18133 |
27 |
| Pratt & Whitney Canada Corp. | 4215 |
20 |
| Rtx Corporation | 8674 |
15 |
| Airbus Operations Limited | 1157 |
11 |
| The Boeing Company | 19843 |
9 |
| Honeywell International Inc. | 13799 |
6 |
| Airbus Operations S.A.S. | 2407 |
5 |
| Airbus UK Limited | 97 |
4 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
4 |
| Safran Helicopter Engines | 676 |
4 |
| United Technologies Corporation | 2328 |
3 |
| Northrop Grumman Systems Corporation | 2940 |
3 |
| Rolls-Royce PLC | 2944 |
3 |
| Amogy Inc. | 37 |
3 |
| Siemens AG | 24990 |
2 |
| Airbus Operations GmbH | 3188 |
2 |
| Airbus Operations S.L. | 511 |
2 |
| Raytheon Company | 8535 |
2 |
| Lockheed Martin Corporation | 3406 |
2 |
| Other owners | 49 |