- 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: 2808
10-year publication summary
|
258
|
291
|
271
|
268
|
221
|
212
|
212
|
229
|
177
|
180
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9596 |
101 |
| Hamilton Sundstrand Corporation | 4954 |
70 |
| Robert Bosch GmbH | 43063 |
56 |
| General Electric Company | 13840 |
53 |
| Nuovo Pignone Tecnologie S.r.l. | 1046 |
44 |
| LG Electronics Inc. | 73772 |
41 |
| IHI Corporation | 3467 |
40 |
| Edwards Japan Limited | 432 |
37 |
| Atlas Copco Airpower, naamloze vennootschap | 1040 |
33 |
| Dyson Technology Limited | 3753 |
32 |
| United Technologies Corporation | 2233 |
31 |
| Siemens AG | 24333 |
30 |
| Mitsubishi Electric Corporation | 46926 |
29 |
| Shimadzu Corporation | 6232 |
29 |
| Mitsubishi Heavy Industries, Ltd. | 8875 |
28 |
| KSB SE & Co. KGaA | 702 |
28 |
| Mitsubishi Heavy Industries Compressor Corporation | 631 |
27 |
| Daikin Industries, Ltd. | 10166 |
26 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 797 |
25 |
| Nidec Corporation | 2701 |
24 |
| Other owners | 2024 |