- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28F - Details of heat-exchange or heat-transfer apparatus, of general application
- F28F 1/12 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
Patent holdings for IPC class F28F 1/12
Total number of patents in this class: 688
10-year publication summary
83
|
76
|
79
|
97
|
68
|
68
|
59
|
45
|
49
|
14
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Electric Corporation | 43934 |
30 |
Valeo Systemes Thermiques | 2471 |
25 |
Carrier Corporation | 4759 |
24 |
Denso Corporation | 23338 |
21 |
Hanon Systems | 1632 |
21 |
MAHLE International GmbH | 2670 |
19 |
Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | 110 |
17 |
Samsung Electronics Co., Ltd. | 131630 |
16 |
Daikin Industries, Ltd. | 9495 |
16 |
LG Electronics Inc. | 69257 |
15 |
Modine Manufacturing Company | 305 |
13 |
UACJ Corporation | 631 |
11 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
9 |
Danfoss Micro Channel Heat Exchanger (Jiaxing) Co. Ltd. | 89 |
8 |
Rtx Corporation | 8674 |
8 |
DENSO International America, Inc. | 609 |
7 |
Hamilton Sundstrand Corporation | 4525 |
7 |
Behr GmbH & Co. KG | 437 |
7 |
Trane International Inc. | 1123 |
7 |
New Power Concepts LLC | 29 |
6 |
Other owners | 401 |