- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/58 - CoolingHeatingDiminishing heat transfer
Patent holdings for IPC class F04D 29/58
Total number of patents in this class: 2849
10-year publication summary
|
291
|
271
|
268
|
221
|
212
|
214
|
230
|
180
|
186
|
34
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9785 |
103 |
| Hamilton Sundstrand Corporation | 5006 |
72 |
| Robert Bosch GmbH | 43385 |
56 |
| General Electric Company | 13804 |
54 |
| Nuovo Pignone Tecnologie S.r.l. | 1117 |
44 |
| LG Electronics Inc. | 74619 |
41 |
| IHI Corporation | 3508 |
40 |
| Edwards Japan Limited | 437 |
37 |
| Atlas Copco Airpower, naamloze vennootschap | 1057 |
34 |
| United Technologies Corporation | 2223 |
31 |
| Dyson Technology Limited | 3845 |
31 |
| Siemens AG | 24329 |
30 |
| Mitsubishi Heavy Industries, Ltd. | 8995 |
30 |
| Mitsubishi Electric Corporation | 47449 |
29 |
| Shimadzu Corporation | 6289 |
29 |
| KSB SE & Co. KGaA | 711 |
29 |
| Daikin Industries, Ltd. | 10243 |
27 |
| Mitsubishi Heavy Industries Compressor Corporation | 634 |
27 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 802 |
25 |
| Nidec Corporation | 2743 |
24 |
| Other owners | 2056 |