- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 19/00 - Preventing the formation of deposits or corrosion, e.g. by using filters
Patent holdings for IPC class F28F 19/00
Total number of patents in this class: 623
10-year publication summary
|
79
|
62
|
85
|
85
|
47
|
39
|
37
|
27
|
48
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 45811 |
19 |
| Valeo Systemes Thermiques | 2696 |
18 |
| Koninklijke Philips N.V. | 24557 |
16 |
| Daikin Industries, Ltd. | 9957 |
16 |
| Carrier Corporation | 4356 |
14 |
| Kurita Water Industries Ltd. | 1185 |
13 |
| Hamilton Sundstrand Corporation | 4832 |
12 |
| MAHLE International GmbH | 2743 |
11 |
| Samsung Electronics Co., Ltd. | 144143 |
9 |
| Massachusetts Institute of Technology | 10013 |
8 |
| Denso Corporation | 24120 |
7 |
| Valeo Autosystemy Sp. z o.o. | 133 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10837 |
6 |
| Corrosion Monitoring Service, Inc. | 6 |
6 |
| Hanon Systems | 1894 |
6 |
| Reaction Engines Ltd | 51 |
6 |
| Siemens AG | 24561 |
5 |
| Uop LLC | 4209 |
5 |
| ExxonMobil Chemical Patents Inc. | 4028 |
5 |
| Alfa Laval Olmi S.p.A | 21 |
5 |
| Other owners | 429 |