- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04D - Non-positive-displacement pumps
- F04D 29/58 - Cooling; Heating; Diminishing heat transfer
Patent holdings for IPC class F04D 29/58
Total number of patents in this class: 2538
10-year publication summary
|
216
|
260
|
301
|
277
|
277
|
229
|
212
|
210
|
220
|
62
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
101 |
| Hamilton Sundstrand Corporation | 4525 |
64 |
| General Electric Company | 18133 |
55 |
| Robert Bosch GmbH | 40953 |
49 |
| LG Electronics Inc. | 69257 |
38 |
| Nuovo Pignone Tecnologie S.r.l. | 789 |
37 |
| IHI Corporation | 3268 |
36 |
| Siemens AG | 24990 |
32 |
| United Technologies Corporation | 2328 |
31 |
| Edwards Japan Limited | 376 |
29 |
| Mitsubishi Electric Corporation | 43934 |
28 |
| Shimadzu Corporation | 5791 |
28 |
| Dyson Technology Limited | 3124 |
28 |
| Mitsubishi Heavy Industries Compressor Corporation | 613 |
27 |
| Atlas Copco Airpower, naamloze vennootschap | 915 |
26 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
25 |
| Daikin Industries, Ltd. | 9495 |
24 |
| GE Infrastructure Technology, LLC | 5873 |
24 |
| Nidec Corporation | 2579 |
22 |
| Hanon Systems | 1632 |
21 |
| Other owners | 1813 |