- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 601
10-year publication summary
|
52
|
79
|
62
|
85
|
85
|
47
|
37
|
33
|
24
|
12
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koninklijke Philips N.V. | 22975 |
17 |
| Mitsubishi Electric Corporation | 43934 |
17 |
| Valeo Systemes Thermiques | 2471 |
17 |
| Daikin Industries, Ltd. | 9495 |
15 |
| Carrier Corporation | 4759 |
14 |
| Kurita Water Industries Ltd. | 1110 |
13 |
| Hamilton Sundstrand Corporation | 4525 |
11 |
| MAHLE International GmbH | 2670 |
11 |
| Samsung Electronics Co., Ltd. | 131630 |
7 |
| Denso Corporation | 23338 |
7 |
| Massachusetts Institute of Technology | 9795 |
7 |
| Valeo Autosystemy Sp. z o.o. | 128 |
7 |
| Corrosion Monitoring Service, Inc. | 6 |
6 |
| Reaction Engines Ltd | 46 |
6 |
| Uop LLC | 4083 |
5 |
| ExxonMobil Chemical Patents Inc. | 4286 |
5 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
5 |
| Alfa Laval Olmi S.p.A | 22 |
5 |
| Hanon Systems | 1632 |
5 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
5 |
| Other owners | 416 |